146 lines
23 KiB
XML
146 lines
23 KiB
XML
<document id="2AE8692B31B307CD7C56C76BD15D32D0" ENCODING="UTF-8" ID-GBIF-Dataset="3c5ab629-fbd5-4afe-8255-6100776ac930" ModsDocID="4576" checkinTime="1243376360196" checkinUser="christiana" docAuthor="Kempf, W. W." docDate="1964" docId="A76A319C72AA8DDC0BB1FED6D7265E1E" docLanguage="en" docName="4576" docOrigin="Studia Entomologica (N. S.) 7" docSource="http://antbase.org/ants/publications/4576/4576.pdf" docTitle="Cyphomyrmex bigibbosus Emery" docType="treatment" docVersion="10" lastPageNumber="23" masterDocId="D0F99FE5C75DA6315BAA26A709BD30A2" masterDocTitle="A revision of the Neotropical fungus-growing ants of the genus Cyphomyrmex Mayr. Part I. Group of strigatus Mayr (Hym., Formicidae)." masterLastPageNumber="44" masterPageNumber="1" pageNumber="20" updateTime="1701312402132" updateUser="plazi">
|
|
<mods:mods id="E566A918CEF4B1D2AA3FD9DFB3C1BF3A" xmlns:mods="http://www.loc.gov/mods/v3">
|
|
<mods:titleInfo id="026318258109A9FD7EB5B221C9E71334">
|
|
<mods:title id="20666E28FA2588B964D0FF7557B9CED6">A revision of the Neotropical fungus-growing ants of the genus Cyphomyrmex Mayr. Part I. Group of strigatus Mayr (Hym., Formicidae).</mods:title>
|
|
</mods:titleInfo>
|
|
<mods:name id="F7F62366A98D61DEE4B618EF37E0C03E" type="personal">
|
|
<mods:role id="6AAA747B3FD7166796C21047C6CBF5CC">
|
|
<mods:roleTerm id="10FDAC5EB090F038875B9477F0E6ADCD">Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart id="B8D0A49BE18F60006A8D4AC616812357">Kempf, W. W.</mods:namePart>
|
|
</mods:name>
|
|
<mods:typeOfResource id="D2CDA3083E6EDEA30EBBB021A1F0B540">text</mods:typeOfResource>
|
|
<mods:relatedItem id="A1299B78F4ED04B855F528055ED7C97C" type="host">
|
|
<mods:titleInfo id="16676349B54FE3FC9DC6994ADBBB1C4A">
|
|
<mods:title id="B71593BF6FD68FD0E592DC89613CDFFF">Studia Entomologica (N. S.)</mods:title>
|
|
</mods:titleInfo>
|
|
<mods:part id="7DB9AF89AF068B2633CA4AFA549B2F53">
|
|
<mods:date id="B45B9EF0DC498363B295F00B2D71D977">1964</mods:date>
|
|
<mods:detail id="F35DBD7DF316592ABCBA3AFA80B07C71" type="volume">
|
|
<mods:number id="F997831EE4D1F90E9BD891370556376A">7</mods:number>
|
|
</mods:detail>
|
|
<mods:extent id="DDE34A2035DAEFA30945CD6CE17DFBF5" unit="page">
|
|
<mods:start id="2E98D26A2AA5F5699B2A8A540090AA86">1</mods:start>
|
|
<mods:end id="EF94E9EE31CDE88427A013D2ADE9B38A">44</mods:end>
|
|
</mods:extent>
|
|
</mods:part>
|
|
</mods:relatedItem>
|
|
<mods:location id="0BD4112E1661CB50CFEAFBE8311BEBEA">
|
|
<mods:url id="BBC60A44EC00682AD6219C87B39EA0E6">http://antbase.org/ants/publications/4576/4576.pdf</mods:url>
|
|
</mods:location>
|
|
<mods:classification id="95CFFFDD946B2C0997D9424D49BBBC85">journal article</mods:classification>
|
|
<mods:identifier id="7AA858FD34ACA2CA089A57B192CDF917" type="HNS-Pub">4576</mods:identifier>
|
|
</mods:mods>
|
|
<treatment id="A76A319C72AA8DDC0BB1FED6D7265E1E" ID-DOI="http://doi.org/10.5281/zenodo.6285120" ID-GBIF-Taxon="100127514" ID-Zenodo-Dep="6285120" LSID="urn:lsid:plazi:treatment:A76A319C72AA8DDC0BB1FED6D7265E1E" httpUri="http://treatment.plazi.org/id/A76A319C72AA8DDC0BB1FED6D7265E1E" lastPageNumber="23" pageNumber="20">
|
|
<subSubSection id="C14EBEF27D0DD5ED58C86D97FA153D42" type="nomenclature">
|
|
<paragraph id="5541E7247EEF7BE9084A1C9B8488CAA6" pageNumber="20">
|
|
5.
|
|
<taxonomicName id="F57625A0464A6621EC125CE54351D223" ID-CoL="33FR7" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="species" species="bigibbosus">Cyphomyrmex bigibbosus Emery</taxonomicName>
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="91A2AF1D5FA2E9A0A2A3A212B9B8C6E6" type="description">
|
|
<paragraph id="DD922FD955DD34946166BAB1E34CE6EF" pageNumber="20">(Figs. 2, 16, 30, 48)</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="70C0A421B1384CE243A845A849C6F954" type="reference_group">
|
|
<paragraph id="2243A4645B20FD5AB4996DEABF30FD0B" pageNumber="20">
|
|
<taxonomicName id="E74CBD19CAE62D5F859E8A5EDA7AAEF0" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="species" species="bigibbosus">Cyphomyrmex bigibbosus Emery</taxonomicName>
|
|
, 1894: 226-227 (Worker; Brazil: Para). - Kempf, 1959: 216 (Brazil, Amapa: Serra do Navio).
|
|
</paragraph>
|
|
<paragraph id="4EF20DCD7FBB95B203BB83BB988094B1" pageNumber="20">
|
|
<taxonomicName id="8C4E18340FD5DD4D6C1417F5DB09603D" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:137344" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus subsp. tumulus Weber" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="subSpecies" species="bigibbosus" subSpecies="tumulus">
|
|
Cyphomyrmex bigibbosus
|
|
<taxonomicName id="BAEEFEA9FF066BBC8DCA5BA3CDA0D7B6" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:228986" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex tumulus Weber" order="Hymenoptera" pageNumber="20" phylum="Arthropoda" rank="species" species="tumulus">tumulus Weber</taxonomicName>
|
|
</taxonomicName>
|
|
. 1938: 185-187 (Worker, female, male; Britsih Guiana: Forest Settlement on Mazaruni River; Oronoque River). - Weber, 1940: 413, figs. 7, 11, 12 (Worker, male; British Guiana; Key). - Weber, 1946: 126-128 (British Guiana; Bion.). -
|
|
<taxonomicNameLabel id="0EC9CF5515C58DDC8465952DB4B640DA">NOV. SYN.</taxonomicNameLabel>
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="7F9EE96BC78BA714B0C5F7DC77F77DBB" type="materials_examined">
|
|
<paragraph id="BB1B2595C0457BE2424B58AD10E796FD" pageNumber="21">
|
|
Types. - The lone holotype worker of
|
|
<taxonomicName id="A084F0800492DDF5659C61B1FF427CB9" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="21" phylum="Arthropoda" rank="species" species="bigibbosus">bigibbosus</taxonomicName>
|
|
is in the Emery collection at the "Museo Civico di Storia Naturale", Genova, Italy; not seen. Syntypes of
|
|
<taxonomicName id="86FEC396DFD438515F4F1B9D899A85AD" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:228986" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex tumulus Weber" order="Hymenoptera" pageNumber="21" phylum="Arthropoda" rank="species" species="tumulus">tumulus</taxonomicName>
|
|
: 3 workers examined (MCZ, NAW).
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="E42457818D1063AAC302AE75F6E89262" type="description">
|
|
<paragraph id="4F810E618267D15C788E4A05264D0D89" pageNumber="21">Worker. - Total length 3.2-3.4 mm; head length 0.75- 0.83 mm; head width 0.67-0.75 mm; thorax length 0.93-1.04 mm; hind femur length 0.83-0.91 mm. Fuscous reddish brown; head usually darkest; mandibles, coxae, femora and sometimes also thorax light brown. Integument, including antennal scrobe, densely granular and opaque.</paragraph>
|
|
<paragraph id="1E8B3600DCD74F524EFF5E5EAC04CADF" pageNumber="21">Head as shown in Fig. 2. Mandibles with 7-8 teeth. Clypeus: anterior border mesially excised; central portion of clypeus obliquely raised towards front, with two acute teeth next to origin of frontal lobes. Vertex with a pair of short carinules. Supraocular tumulus blunt, rounded, not prominent. Preocular carinae reaching the gently produced occipital lobes (Fig. 48), closing completely the antennal scrobe. Lower border of sides of head carinate. Antennal scapes, in repose, not projecting beyond tip of occipital lobes. Only funicular segments 1 and 10 distinctly longer than broad.</paragraph>
|
|
<paragraph id="4479B46C18B66A6E12E07EBBE95A3066" pageNumber="21">Thorax as shown in Fig. 16. Pronotum: the single median tubercle quite distinct, the lateral ones very low and blunt, continued foreward as a faint, often more or less obsolete, margination that separates the pronotal dorsum from the sides: antero-inferior corner acutely dentate. Mesonotum: anterior pair of tubercles prominent and conical, posterior pair very low but distinct and blunt. Mesoepinotal constriction conspicuous but relatively shallow in profile. Epinotum completely rounded and unarmed. Hind femora a little dilated ventrally but not visibly carinate posteriorly at basal third.</paragraph>
|
|
<paragraph id="0092C11C6CAF089133C2384F9AD703C4" pageNumber="21">Pedicel as shown in Figs. 16 and 30. Petiole in dorsal view rather longer than broad, anterior corners of node not sharply angulate, dorsal ridges at best vestigial, posterior dorsal border without a raised carinule. Postpetiole, in dorsal view, subquadrate not transverse, with a perpendicular anterior face, a rather flat dorsal face, having the posterior border deeply excised between a pair of prominent horizontal tubercles. Tergum I of gaster strongly vaulted, lacking lateral margination and longitudinal carinae. Hairs minute, appressed, glittering, scattered; quite inconspicuous, on body and appendages.</paragraph>
|
|
<paragraph id="0A12122DC90805DF91F0DA699A94B2EF" lastPageNumber="22" pageNumber="22">
|
|
Female. - Total length 3.8 mm; head length 0.84 mm; head width 0.79 mm; thorax length 1.20 mm; hind femur length 0.96 mm. Resembling the worker with the differences of the caste. Differs from
|
|
<taxonomicName id="77D10FCAB46FC6F23A9948CDB55495AC" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28525" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex faunulus Wheeler" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="faunulus">faunulus</taxonomicName>
|
|
(see below) in the following features: Bicolored, head and gaster fuscous, thorax brown. Occipital lobes much less projecting both in full-face view as in- profile, much as in worker. Midpronotal tubercle faint but still distinguishable. Pair of anterior tubercles between arms of Mayrian furrows very low; scutum laterally not deeply furrowed. Paraptera postero-laterally with a short tooth. Posterior scutellar teeth much shorter, about as long as their width at base. Epinotal teeth completely absent. Pedicel as in worker; petiole elongate, with subparallel sides, anterior corners rather rounded; postpetiole with the same deep mesial excision on posterior border, flanked by prominent lobes, as in worker. Gaster bigibbous on anterior third of tergum I.
|
|
</paragraph>
|
|
<paragraph id="B0BEABD091FF1085E32C099BE8F768EF" pageNumber="22">
|
|
Male described by Weber (1938), as of
|
|
<taxonomicName id="EE820B32D2506FC7F5739AFC3ED91ADF" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:228986" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex tumulus Weber" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="tumulus">tumulus</taxonomicName>
|
|
.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="2556CB112B372B7BD8757427174972AE" type="distribution">
|
|
<paragraph id="DE4D41EB3748468E69A4A792902F93E9" pageNumber="22">Distribution. - This species is known only from the Amazon valley in Brazil and from British Guiana.</paragraph>
|
|
<paragraph id="C7A6527F6EF12C6A3DADA73872A15328" pageNumber="22">
|
|
Specimens examined. - Brazil, Amapa Territory: Serra do Navio (K. Lenko) 30 workers (DZSP, WWK); Amazonas State: Manaus (K. Lenko) 1 female (DZSP). - British Guiana: Forest Settlement on Mazaruni River (N. A. Weber) 3 workers (syntypes of
|
|
<taxonomicName id="3B9C5B8B53EB6BBDBE3A198934907450" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:137344" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus subsp. tumulus Weber" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="subSpecies" species="bigibbosus" subSpecies="tumulus">C. bigibbosus tumulus</taxonomicName>
|
|
) (NAW, MCZ).
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="2741CB720CB49FC0496E5F1B5580114D" type="discussion">
|
|
<paragraph id="66729084116E5AC09D663D81258C49CB" pageNumber="22">
|
|
Discussion and synonymy. - Besides the typical form, described by Emery upon a lone worker from Para, Brazil, three additional races have hitherto been proposed, viz.
|
|
<taxonomicName id="E5CCBF3ADFCF8AC9ABDEDADDF7168233" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28525" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex faunulus Wheeler" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="faunulus">faunulus Wheeler</taxonomicName>
|
|
,
|
|
<taxonomicName id="B974B93C075890B7DAC41A214BF4C03A" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:228969" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus petiolatus Weber" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="petiolatus">petiolatus Weber</taxonomicName>
|
|
and
|
|
<taxonomicName id="66236CA03FE4247FDD4D8F03F8E901AD" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:228986" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex tumulus Weber" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="tumulus">tumulus Weber</taxonomicName>
|
|
. This splitting shows the serious effort of dealing with the undeniable variability cf the species. But the result is nevertheless inadequate, not only from a geographical viewpoint but mainly because the previous authors have seemingly misidentified the typical
|
|
<taxonomicName id="65F2F227CE22182E06A6BD6BBDC12A9E" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="bigibbosus">bigibbosus</taxonomicName>
|
|
. Although 1 have been unable to secure the holotype of the latter, I believe that Emery's concise description contains sufficient elements to show that
|
|
<taxonomicName id="6C71598110B8EFCC7C8379C3EE9427F6" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="bigibbosus">bigibbosus</taxonomicName>
|
|
s. str. is identical with
|
|
<taxonomicName id="1CF254E6EEE979D66E613F1B39001116" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:228986" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex tumulus Weber" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="tumulus">tumulus</taxonomicName>
|
|
on account of the little drawn out occipital lobes, the acute inferior pronotal angle, the well-developed mid-pronotal tubercle and principally the postpetiole"postice impresso et bituberculato". On the other hand,
|
|
<taxonomicName id="280841096DA6B54AE68198256A56358B" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="bigibbosus">bigibbosus</taxonomicName>
|
|
sensu Weber is really a different form, taking the second oldest name of
|
|
<taxonomicName id="053A4658F01692430992F7FD5BBD43D8" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28525" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex faunulus Wheeler" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="faunulus">faunulus</taxonomicName>
|
|
, with
|
|
<taxonomicName id="BDE59095E88D5A32DA149FD06942F658" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:228969" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus petiolatus Weber" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="petiolatus">petiolatus</taxonomicName>
|
|
as its junior synonym. On account of the afore mentioned characters,
|
|
<taxonomicName id="7E5BD9BEFF04CCA1D46B6E4918EAF32A" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28525" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex faunulus Wheeler" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="faunulus">C. faunulus</taxonomicName>
|
|
is apparently sufficiently distinct from
|
|
<taxonomicName id="E22FC54CF1F33D93F8A6B5E2D6A6CC3B" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="bigibbosus">bigibbosus</taxonomicName>
|
|
to be considered a genuine species. It is sympatric with
|
|
<taxonomicName id="30B8C8CBB6B0427116FD76FCEA4B4C5D" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="bigibbosus">bigibbosus</taxonomicName>
|
|
, but occupies, according to our present knowledge, a much greater territory of dispersal.
|
|
</paragraph>
|
|
<paragraph id="FEC89EB99E35BA8F74029ACF0C767E78" pageNumber="22">
|
|
The head of the
|
|
<taxonomicName id="EA9580C78360404319810C333F621BC7" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="bigibbosus">bigibbosus</taxonomicName>
|
|
worker is strikingly similar to that of
|
|
<taxonomicName id="66D6A66547AA4F916920CB35D0B94E35" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28547" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex strigatus Mayr" order="Hymenoptera" pageNumber="22" phylum="Arthropoda" rank="species" species="strigatus">strigatus</taxonomicName>
|
|
, but the configuration of the thorax, the pedicel and the gaster shows clearly the conspicuous differences between both species.
|
|
</paragraph>
|
|
<paragraph id="7E7B475A7547E1A51F543816113C729C" lastPageNumber="23" pageNumber="22">Variation. - The scanty material available for this investigation is rather uniform. The series from Serra do Navio shows a vestigial lateral margination of tergum I of gaster, which in profile forms an obtuse angle at basal third, as shown in Fig., 16. This condition does not obtain in the series from British Guiana, but is well-expressed in the queen from Manaus.</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="3FB2017840C607AFCAEF8060E4D8F58B" type="biology_ecology">
|
|
<paragraph id="30B460C52B4E28D6F6B9B4D6A6851A1F" pageNumber="23">
|
|
Bionomics. - Professor Weber made field studies of the present species ("
|
|
<taxonomicName id="388D0234B3D03011D08D7BB9A58283CA" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:137344" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus subsp. tumulus Weber" order="Hymenoptera" pageNumber="23" phylum="Arthropoda" rank="subSpecies" species="bigibbosus" subSpecies="tumulus">bigibbosus tumulus</taxonomicName>
|
|
") in British Guiana. His account (Weber 1946: 126-128) contains the only available published data and should be consulted by all those that are particularly interested in this subject. Following is a brief resume of his findings:
|
|
</paragraph>
|
|
<paragraph id="634B1BF6262325ABC71627097B1E9122" pageNumber="23">
|
|
<taxonomicName id="0FFC4247FF61C9691FDE353AE3F89267" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="23" phylum="Arthropoda" rank="species" species="bigibbosus">C. bigibbosus</taxonomicName>
|
|
is a rain forest species and seems to prefer high humidities. The nest chambers were found in rotted wood, mostly in excavate cells, but also under bark. The cavity size is variable but averages about 20-25 cc. The fungus garden is mostly sessile, resting on the floor, but variously attached at the sides. Occasionally the chains of fungus garden are also suspended from the ceiling. The substrate is heterogeneous, consisting mainly of yellow to brown particles, often of woody consistency; once even a head of a
|
|
<taxonomicName id="415980E22021A631A390FB4A7D839CEA" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:2463" class="Insecta" family="Formicidae" genus="Dolichoderus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Dolichoderus Lund" order="Hymenoptera" pageNumber="23" phylum="Arthropoda" rank="genus">Dolichoderus</taxonomicName>
|
|
ant was used as substrate. Once a worker of
|
|
<taxonomicName id="842186CCD86479F373D0CD9CFF1776A7" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:35492" class="Insecta" family="Formicidae" genus="Prionopelta" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Prionopelta punctulata Mayr" order="Hymenoptera" pageNumber="23" phylum="Arthropoda" rank="species" species="punctulata">Prionopelta punctulata</taxonomicName>
|
|
was found inside a nest, preying perhaps on the larvae of
|
|
<taxonomicName id="69AFA37C1702B02A47CC50A410EFD2EC" LSID-HNS="urn:lsid:biosci.ohio-state.edu:osuc_concepts:28518" class="Insecta" family="Formicidae" genus="Cyphomyrmex" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-HNS="Cyphomyrmex bigibbosus Emery" order="Hymenoptera" pageNumber="23" phylum="Arthropoda" rank="species" species="bigibbosus">C. bigibbosus</taxonomicName>
|
|
. The finding of an dealate queen in a tiny fungus garden, with a full grown worker, suggests splitting as a possible means of colony foundation.
|
|
</paragraph>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |