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<document ID-DOI="10.1649/0010-065X-75.1.93" ID-ISSN="1938-4394" ID-ZooBank="urn:lsid:zoobank.org:pub:2E91CF93-FC68-4D00-9CBC-C982EA60265D" approvalRequired="84" approvalRequired_for_bibRefs="3" approvalRequired_for_document="1" approvalRequired_for_textStreams="63" approvalRequired_for_treatments="17" checkinTime="1630182834776" checkinUser="marcus" docAuthor="Barr, Cheryl B." docDate="2021" docId="F821AD66AC447659FF516F752126FA4F" docLanguage="en" docName="0010-065X-75.1.93.pdf" docOrigin="The Coleopterists Bulletin 75 (1)" docSource="http://dx.doi.org/10.1649/0010-065x-75.1.93" docStyle="DocumentStyle:F824235CA89CB83023C7D5789122F870.2:TheColeopBull.2017-.journal_article.1cover" docStyleId="F824235CA89CB83023C7D5789122F870" docStyleName="TheColeopBull.2017-.journal_article.1cover" docStyleVersion="2" docTitle="Macrelmis moesta" docType="treatment" docVersion="1" lastPageId="20" lastPageNumber="112" masterDocId="0418D51EAC57764DFFAE6E642321FFF8" masterDocTitle="Revision of Macrelmis Motschulsky, 1860 in the Southwestern United States and Northern Mexico with Description of Four New Species (Coleoptera: Elmidae: Elminae)" masterLastPageNumber="120" masterPageNumber="93" pageId="19" pageNumber="111" updateTime="1630182838590" updateUser="marcus">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Revision of Macrelmis Motschulsky, 1860 in the Southwestern United States and Northern Mexico with Description of Four New Species (Coleoptera: Elmidae: Elminae)</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Barr, Cheryl B.</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>The Coleopterists Bulletin</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2021</mods:date>
<mods:detail type="pubDate">
<mods:number>2021-03-20</mods:number>
</mods:detail>
<mods:detail type="volume">
<mods:number>75</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>1</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>93</mods:start>
<mods:end>120</mods:end>
</mods:extent>
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<mods:location>
<mods:url>http://dx.doi.org/10.1649/0010-065x-75.1.93</mods:url>
</mods:location>
<mods:classification>journal article</mods:classification>
<mods:identifier type="DOI">10.1649/0010-065X-75.1.93</mods:identifier>
<mods:identifier type="ISSN">1938-4394</mods:identifier>
<mods:identifier type="ZooBank">urn:lsid:zoobank.org:pub:2E91CF93-FC68-4D00-9CBC-C982EA60265D</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:F821AD66AC447659FF516F752126FA4F" httpUri="http://treatment.plazi.org/id/F821AD66AC447659FF516F752126FA4F" lastPageId="20" lastPageNumber="112" pageId="19" pageNumber="111">
<subSubSection box="[255,576,273,294]" pageId="19" pageNumber="111" type="nomenclature">
<paragraph blockId="19.[255,576,273,321]" box="[255,576,273,294]" pageId="19" pageNumber="111">
<heading box="[255,576,273,294]" centered="true" fontSize="9" level="2" pageId="19" pageNumber="111" reason="2">
<taxonomicName authority="(Horn, 1870)" baseAuthorityName="Horn" baseAuthorityYear="1870" box="[255,576,273,294]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="moesta">
<emphasis bold="true" box="[255,576,273,294]" pageId="19" pageNumber="111">
<emphasis bold="true" box="[255,437,273,294]" italics="true" pageId="19" pageNumber="111">Macrelmis moesta</emphasis>
(
<bibRefCitation author="Horn, G. H." box="[452,570,273,294]" pageId="19" pageNumber="111" pagination="29 - 42" refId="ref21677" refString="Horn, G. H. 1870. Synopsis of the Parnidae of the United States. Transactions of the American Entomological Society 3: 29 - 42." type="journal article" year="1870">Horn, 1870</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection box="[338,493,299,321]" pageId="19" pageNumber="111" type="description">
<paragraph blockId="19.[255,576,273,321]" box="[338,493,299,321]" pageId="19" pageNumber="111">
(
<figureCitation box="[345,412,300,321]" captionStart="Figs" captionStartId="2.[175,214,1595,1614]" captionTargetBox="[154,1169,196,1577]" captionTargetId="figure-0@2.[152,1171,194,1579]" captionTargetPageId="2" captionText="Figs. 1–2. Maps illustrating the known geographic distributions of Macrelmis in the southwestern USA and northern Mexico. 1) M. texana, M. moesta, M. shoemakei (locality points approximate, not georeferenced); 2) M. harleyi, new species, M. shepardi, new species, M. texangusta, new species, and M. mexicana, new species." pageId="19" pageNumber="111">Figs. 1</figureCitation>
,
<figureCitation box="[426,486,299,321]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="19" pageNumber="111">15–16</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection pageId="19" pageNumber="111" type="reference_group">
<paragraph blockId="19.[173,659,352,454]" lastBlockId="19.[707,1193,194,454]" pageId="19" pageNumber="111">
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[197,377,352,374]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[197,377,352,374]" italics="true" pageId="19" pageNumber="111">Macrelmis moesta</emphasis>
</taxonomicName>
was described as
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" class="Insecta" family="Elmidae" genus="Elsianus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="moestus">
<emphasis italics="true" pageId="19" pageNumber="111">Elsianus moestus</emphasis>
</taxonomicName>
by
<bibRefCitation author="Horn, G. H." box="[298,423,380,401]" pageId="19" pageNumber="111" pagination="29 - 42" refId="ref21677" refString="Horn, G. H. 1870. Synopsis of the Parnidae of the United States. Transactions of the American Entomological Society 3: 29 - 42." type="journal article" year="1870">Horn (1870)</bibRefCitation>
from a unique female specimen (H. P. Brown, unpublished data) from the
<collectingCountry box="[173,275,433,454]" name="Saint Pierre and Miquelon" pageId="19" pageNumber="111">San Pedro</collectingCountry>
River, Cochise County, Arizona. The male genitalia of the species are described and illustrated (
<figureCitation box="[801,914,220,242]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="19" pageNumber="111">Figs. 16a–b</figureCitation>
) herein for the first time. For the past 150 years
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[901,1004,247,268]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[901,1004,247,268]" italics="true" pageId="19" pageNumber="111">M. moesta</emphasis>
</taxonomicName>
has been the only species recorded for Arizona, and the more widespread, formerly undescribed species
<taxonomicName authorityName="Barr" authorityYear="2021" box="[1076,1192,299,321]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="shepardi">
<emphasis box="[1076,1192,299,321]" italics="true" pageId="19" pageNumber="111">M. shepardi</emphasis>
</taxonomicName>
has been confused with it (H. P. Brown, unpublished data). Arizona records from Gila and Yavapai counties attributed to
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[903,998,380,401]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[903,998,380,401]" italics="true" pageId="19" pageNumber="111">M. moesta</emphasis>
</taxonomicName>
by
<bibRefCitation author="Brown, H. P." box="[1031,1161,380,401]" pageId="19" pageNumber="111" pagination="55 - 58" refId="ref21160" refString="Brown, H. P. 1971. A new species of Elsianus from Texas and Mexico, with records of other species in the United States (Coleoptera: Dryopoidea: Elmidae). The Coleopterists Bulletin 25 (2): 55 - 58. www. jstor. org / stable / 3999561." type="journal article" year="1971">Brown (1971)</bibRefCitation>
are actually of
<taxonomicName authorityName="Barr" authorityYear="2021" box="[810,921,405,427]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="shepardi">
<emphasis box="[810,921,405,427]" italics="true" pageId="19" pageNumber="111">M. shepardi</emphasis>
</taxonomicName>
.
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[933,1102,405,427]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[933,1102,405,427]" italics="true" pageId="19" pageNumber="111">Macrelmis moesta</emphasis>
</taxonomicName>
is known only from a few localities in far southeastern Arizona
</paragraph>
<caption box="[197,1194,1686,1706]" pageId="19" pageNumber="111" startId="19.[197,236,1687,1706]" targetBox="[175,1190,525,1669]" targetPageId="19">
<paragraph blockId="19.[173,1194,1686,1730]" box="[197,1194,1686,1706]" pageId="19" pageNumber="111">
<emphasis bold="true" box="[197,304,1686,1706]" pageId="19" pageNumber="111">Figs. 15–16.</emphasis>
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[326,482,1686,1705]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="19" pageNumber="111" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[326,482,1686,1705]" italics="true" pageId="19" pageNumber="111">Macrelmis moesta</emphasis>
</taxonomicName>
.
<emphasis bold="true" box="[494,521,1687,1706]" pageId="19" pageNumber="111">15)</emphasis>
Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;
</paragraph>
</caption>
<paragraph blockId="19.[173,1194,1686,1730]" box="[173,615,1711,1730]" pageId="19" pageNumber="111">
<emphasis bold="true" box="[173,201,1711,1730]" pageId="19" pageNumber="111">16)</emphasis>
Male genitalia, a) Dorsal view, b) Lateral view.
</paragraph>
</subSubSection>
<subSubSection pageId="20" pageNumber="112" type="description">
<paragraph blockId="20.[151,639,194,1463]" pageId="20" pageNumber="112">
(Gila/Graham counties, San Carlos River; Greenlee County, Blue River and tributary Pigeon Creek; Pinal County, Aravaipa Canyon; Pima County, Sabino Canyon; Cochise County, Cave Creek), but it likely also occurs in the adjacent state of
<collectingRegion box="[562,634,300,321]" country="Mexico" name="Sonora" pageId="20" pageNumber="112">Sonora</collectingRegion>
,
<collectingCountry box="[151,229,326,347]" name="Mexico" pageId="20" pageNumber="112">Mexico</collectingCountry>
.
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[239,418,326,348]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[239,418,326,348]" italics="true" pageId="20" pageNumber="112">Macrelmis moesta</emphasis>
</taxonomicName>
has not been found to occur in the same streams as
<taxonomicName authorityName="Barr" authorityYear="2021" box="[435,553,352,374]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="shepardi">
<emphasis box="[435,553,352,374]" italics="true" pageId="20" pageNumber="112">M. shepardi</emphasis>
</taxonomicName>
, but
<specimenCount pageId="20" pageNumber="112" type="generic">one specimen</specimenCount>
has been examined from the
<typeStatus box="[558,600,380,401]" pageId="20" pageNumber="112">type</typeStatus>
locality of
<taxonomicName authorityName="Barr" authorityYear="2021" box="[242,345,405,427]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="harleyi">
<emphasis box="[242,345,405,427]" italics="true" pageId="20" pageNumber="112">M. harleyi</emphasis>
</taxonomicName>
in Cochise County (
<figureCitation box="[553,615,406,427]" captionStart="Figs" captionStartId="5.[197,236,1503,1522]" captionTargetBox="[208,1189,231,1483]" captionTargetId="figure-63@5.[175,1191,194,1487]" captionTargetPageId="5" captionText="Figs. 3–5. Macrelmis harleyi, new species. 3) Habitus, holotype, size 4.84 mm long, 1.92 mm wide, a) Dorsal view, b) Ventral view; 4) Male genitalia, a) Dorsal view, b) Lateral view; 5) Type locality: Cave Creek, Cochise Co., Arizona, USA (photo courtesy of Rebekah Karsch, USDA Forest Service, Coronado National Forest, Arizona)." pageId="20" pageNumber="112">Fig. 5</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection pageId="20" pageNumber="112" type="diagnosis">
<paragraph blockId="20.[151,639,194,1463]" pageId="20" pageNumber="112">
<emphasis bold="true" box="[175,279,433,454]" pageId="20" pageNumber="112">Diagnosis.</emphasis>
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[290,468,432,454]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[290,468,432,454]" italics="true" pageId="20" pageNumber="112">Macrelmis moesta</emphasis>
</taxonomicName>
(
<figureCitation box="[486,604,432,454]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="20" pageNumber="112">Figs. 15a–b</figureCitation>
) is rather small,
<quantity box="[283,413,459,481]" metricMagnitude="-3" metricUnit="m" metricValue="3.78" metricValueMax="4.16" metricValueMin="3.4" pageId="20" pageNumber="112" unit="mm" value="3.78" valueMax="4.16" valueMin="3.4">3.4–4.16 mm</quantity>
long and
<quantity box="[519,638,459,481]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" metricValueMax="1.6" metricValueMin="1.4" pageId="20" pageNumber="112" unit="mm" value="1.5" valueMax="1.6" valueMin="1.4">1.4–1.6 mm</quantity>
wide. It externally resembles and is close in size to
<taxonomicName baseAuthorityName="Brown" baseAuthorityYear="1971" box="[151,283,512,534]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="shoemakei">
<emphasis box="[151,283,512,534]" italics="true" pageId="20" pageNumber="112">M. shoemakei</emphasis>
</taxonomicName>
(
<figureCitation box="[296,409,512,534]" captionStart="Figs" captionStartId="21.[197,236,1436,1455]" captionTargetBox="[177,1158,226,1416]" captionTargetId="figure-143@21.[175,1191,194,1420]" captionTargetPageId="21" captionText="Figs. 17–18. Macrelmis shoemakei. 17) Habitus, size 3.48 mm long, 1.40 mm wide, a) Dorsal view, b) Ventral view; 18) Male genitalia, a) Dorsal view, b) Lateral view." pageId="20" pageNumber="112">Figs. 17a–b</figureCitation>
), but
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[463,562,513,534]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[463,562,513,534]" italics="true" pageId="20" pageNumber="112">M. moesta</emphasis>
</taxonomicName>
is more densely granulate and the male genitalia are very different: in
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[271,370,566,587]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[271,370,566,587]" italics="true" pageId="20" pageNumber="112">M. moesta</emphasis>
</taxonomicName>
(
<figureCitation box="[384,498,565,587]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="20" pageNumber="112">Figs. 16a–b</figureCitation>
) the penis is a little bit longer than the parameres and abruptly narrowed at the apical 1/3; in
<taxonomicName baseAuthorityName="Brown" baseAuthorityYear="1971" box="[443,576,618,640]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="shoemakei">
<emphasis box="[443,576,618,640]" italics="true" pageId="20" pageNumber="112">M. shoemakei</emphasis>
</taxonomicName>
(
<figureCitation captionStart="Figs" captionStartId="21.[197,236,1436,1455]" captionTargetBox="[177,1158,226,1416]" captionTargetId="figure-143@21.[175,1191,194,1420]" captionTargetPageId="21" captionText="Figs. 17–18. Macrelmis shoemakei. 17) Habitus, size 3.48 mm long, 1.40 mm wide, a) Dorsal view, b) Ventral view; 18) Male genitalia, a) Dorsal view, b) Lateral view." pageId="20" pageNumber="112">Figs. 18a–b</figureCitation>
) the penis is much longer than the parameres and narrowly spatulate.
<taxonomicName authorityName="Barr" authorityYear="2021" box="[379,577,671,693]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="mexicana">
<emphasis box="[379,577,671,693]" italics="true" pageId="20" pageNumber="112">Macrelmis mexicana</emphasis>
</taxonomicName>
(
<figureCitation captionStart="Figs" captionStartId="16.[175,214,1404,1423]" captionTargetBox="[155,1168,221,1386]" captionTargetId="figure-114@16.[152,1171,194,1388]" captionTargetPageId="16" captionText="Figs. 12–14. Macrelmis mexicana, new species. 12) Habitus, size 3.68 mm long, 1.48 mm wide, a) Dorsal view, b) Ventral view; 13) Male genitalia, a) Dorsal view, b) Lateral view; 14) Type locality: Arroyo San Dionisio, Sierra de la Laguna Baja California Sur, Mexico." pageId="20" pageNumber="112">Figs. 12a–b</figureCitation>
) is also of similar size, but the pronotal sublateral carinae are obscure or lacking (prominent in
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[179,281,752,773]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[179,281,752,773]" italics="true" pageId="20" pageNumber="112">M. moesta</emphasis>
</taxonomicName>
), and in the males, the penis (
<figureCitation captionStart="Figs" captionStartId="16.[175,214,1404,1423]" captionTargetBox="[155,1168,221,1386]" captionTargetId="figure-114@16.[152,1171,194,1388]" captionTargetPageId="16" captionText="Figs. 12–14. Macrelmis mexicana, new species. 12) Habitus, size 3.68 mm long, 1.48 mm wide, a) Dorsal view, b) Ventral view; 13) Male genitalia, a) Dorsal view, b) Lateral view; 14) Type locality: Arroyo San Dionisio, Sierra de la Laguna Baja California Sur, Mexico." pageId="20" pageNumber="112">Figs. 13a–b</figureCitation>
) is nearly parallel-sided and not abruptly narrowed towards the apex.
<taxonomicName authorityName="Barr" authorityYear="2021" box="[455,638,804,826]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="harleyi">
<emphasis box="[455,638,804,826]" italics="true" pageId="20" pageNumber="112">Macrelmis harleyi</emphasis>
</taxonomicName>
(
<figureCitation box="[158,262,831,853]" captionStart="Figs" captionStartId="5.[197,236,1503,1522]" captionTargetBox="[208,1189,231,1483]" captionTargetId="figure-63@5.[175,1191,194,1487]" captionTargetPageId="5" captionText="Figs. 3–5. Macrelmis harleyi, new species. 3) Habitus, holotype, size 4.84 mm long, 1.92 mm wide, a) Dorsal view, b) Ventral view; 4) Male genitalia, a) Dorsal view, b) Lateral view; 5) Type locality: Cave Creek, Cochise Co., Arizona, USA (photo courtesy of Rebekah Karsch, USDA Forest Service, Coronado National Forest, Arizona)." pageId="20" pageNumber="112">Figs. 3a–b</figureCitation>
) and
<taxonomicName authorityName="Barr" authorityYear="2021" box="[322,439,830,852]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="shepardi">
<emphasis box="[322,439,830,852]" italics="true" pageId="20" pageNumber="112">M. shepardi</emphasis>
</taxonomicName>
(
<figureCitation box="[455,558,831,853]" captionStart="Figs" captionStartId="7.[197,236,1626,1645]" captionTargetBox="[187,1184,196,1592]" captionTargetId="figure-0@7.[173,1192,194,1611]" captionTargetPageId="7" captionText="Figs. 6–8. Macrelmis shepardi, new species. 6) Habitus and metatarsus; size 5.84 mm long, 2.28 mm wide, a) Dorsal view, b) Ventral view, c) Metatarsus, left, inner surface; 7) Male genitalia, a) Dorsal view, b) Lateral view; 8) Type locality: Limpia Creek, Jeff Davis Co., Texas, USA (photo courtesy of Tyler Priest, Texas Parks &amp; Wildlife Dept., Fort Davis, Texas)." pageId="20" pageNumber="112">Figs. 6a–c</figureCitation>
), which like
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[192,289,858,879]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[192,289,858,879]" italics="true" pageId="20" pageNumber="112">M. moesta</emphasis>
</taxonomicName>
also occur in
<collectingRegion box="[417,496,858,879]" country="United States of America" name="Arizona" pageId="20" pageNumber="112">Arizona</collectingRegion>
, are both much larger, over
<quantity box="[265,338,884,905]" metricMagnitude="-3" metricUnit="m" metricValue="4.2" pageId="20" pageNumber="112" unit="mm" value="4.2">4.2 mm</quantity>
long and
<quantity box="[432,505,884,905]" metricMagnitude="-3" metricUnit="m" metricValue="1.8" pageId="20" pageNumber="112" unit="mm" value="1.8">1.8 mm</quantity>
wide, and the males have different genitalia (
<figureCitation box="[459,564,910,932]" captionStart="Figs" captionStartId="5.[197,236,1503,1522]" captionTargetBox="[208,1189,231,1483]" captionTargetId="figure-63@5.[175,1191,194,1487]" captionTargetPageId="5" captionText="Figs. 3–5. Macrelmis harleyi, new species. 3) Habitus, holotype, size 4.84 mm long, 1.92 mm wide, a) Dorsal view, b) Ventral view; 4) Male genitalia, a) Dorsal view, b) Lateral view; 5) Type locality: Cave Creek, Cochise Co., Arizona, USA (photo courtesy of Rebekah Karsch, USDA Forest Service, Coronado National Forest, Arizona)." pageId="20" pageNumber="112">Figs. 4a–b</figureCitation>
,
<figureCitation box="[578,626,910,932]" captionStart="Figs" captionStartId="7.[197,236,1626,1645]" captionTargetBox="[187,1184,196,1592]" captionTargetId="figure-0@7.[173,1192,194,1611]" captionTargetPageId="7" captionText="Figs. 6–8. Macrelmis shepardi, new species. 6) Habitus and metatarsus; size 5.84 mm long, 2.28 mm wide, a) Dorsal view, b) Ventral view, c) Metatarsus, left, inner surface; 7) Male genitalia, a) Dorsal view, b) Lateral view; 8) Type locality: Limpia Creek, Jeff Davis Co., Texas, USA (photo courtesy of Tyler Priest, Texas Parks &amp; Wildlife Dept., Fort Davis, Texas)." pageId="20" pageNumber="112">7a–b</figureCitation>
). The male genitalia of
<taxonomicName baseAuthorityName="Horn" baseAuthorityYear="1870" box="[386,491,938,959]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="moesta">
<emphasis box="[386,491,938,959]" italics="true" pageId="20" pageNumber="112">M. moesta</emphasis>
</taxonomicName>
(
<figureCitation box="[511,631,937,959]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="20" pageNumber="112">Figs. 16a–b</figureCitation>
) somewhat resemble those of
<taxonomicName authorityName="Barr" authorityYear="2021" box="[437,575,964,985]" class="Insecta" family="Elmidae" genus="Macrelmis" kingdom="Animalia" order="Coleoptera" pageId="20" pageNumber="112" phylum="Arthropoda" rank="species" species="texangusta">
<emphasis box="[437,575,964,985]" italics="true" pageId="20" pageNumber="112">M. texangusta</emphasis>
</taxonomicName>
(
<figureCitation captionStart="Figs" captionStartId="12.[175,214,1547,1566]" captionTargetBox="[155,1167,196,1529]" captionTargetId="figure-1@12.[153,1169,194,1531]" captionTargetPageId="12" captionText="Figs. 9–11. Macrelmis texangusta, new species. 9) Habitus, size 4.32 mm long, 1.48 mm wide, a) Dorsal view, b) Ventral view; 10) Male genitalia, a) Dorsal view, b) Lateral view; 11) Type locality: Independence Creek at Independence Creek Preserve, Terrell Co., Texas, USA." pageId="20" pageNumber="112">Figs. 10a–b</figureCitation>
), but the parameres are narrower and the penis is wider at the tip.
</paragraph>
</subSubSection>
<subSubSection pageId="20" pageNumber="112" type="description">
<paragraph blockId="20.[151,639,194,1463]" pageId="20" pageNumber="112">
<emphasis bold="true" box="[175,454,1044,1065]" pageId="20" pageNumber="112">Description. Male genitalia:</emphasis>
Elongate, about 3× as long as wide; well sclerotized. Phallobase much longer than parameres; parameres a little shorter than penis (
<figureCitation box="[262,377,1123,1145]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="20" pageNumber="112">Figs. 16a–b</figureCitation>
). In dorsal view (
<figureCitation box="[545,626,1123,1144]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="20" pageNumber="112">Fig. 16a</figureCitation>
), parameres with lateral margins nearly parallel at basal 2/3, inner margins sinuate, apices rounded and weakly curved inward; penis wide at basal 2/3, abruptly narrowed at apical 1/3 with lateral margins nearly parallel, apex rounded to broadly rounded; penis at base much wider than paramere base, at apical 1/3 wider than paramere apical 1/3. In lateral view (
<figureCitation box="[281,366,1336,1357]" captionStart="Figs" captionStartId="19.[197,236,1687,1706]" captionTargetBox="[175,1190,525,1669]" captionTargetId="figure-141@19.[173,1192,523,1671]" captionTargetPageId="19" captionText="Figs. 15–16. Macrelmis moesta. 15) Habitus, size 3.96 mm long, 1.52 mm wide, a) Dorsal view, b) Ventral view;" pageId="20" pageNumber="112">Fig. 16b</figureCitation>
), phallobase ventral margin strongly arcuate; paramere with ventral margin moderately arcuate, variably narrowed at apical 1/4, apex bluntly rounded; penis with apex narrowly rounded and slightly curved ventrally.
</paragraph>
</subSubSection>
</treatment>
</document>
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