<documentID-CLB-Dataset="6286"ID-DOI="http://dx.doi.org/10.3897/zookeys.1042.66576"ID-GBIF-Dataset="598dbded-7da1-48b8-b8fa-2e648b22a198"ID-PMC="PMC8195948"ID-Pensoft-Pub="1313-2970-1042-1"ID-Pensoft-UUID="0930CA7A3EDB571AA10D026EF39B1739"ID-PubMed="34163286"ID-ZooBank="B0B0F76E89504A0AB45D701730486B56"ModsDocID="1313-2970-1042-1"checkinTime="1622838178301"checkinUser="pensoft"docAuthor="Zhang, Wen-Xuan, Hu, Fang-Shuo & Yin, Zi-Wei"docDate="2021"docId="60E9CC75AF9D58E88E3CDC2CE141887F"docLanguage="en"docName="ZooKeys 1042: 1-22"docOrigin="ZooKeys 1042"docPubDate="2021-06-04"docSource="http://dx.doi.org/10.3897/zookeys.1042.66576"docTitle="Horniella khasiensis Zhang & Yin 2021, sp. nov."docType="treatment"docUuid="7DC18538-F16A-4665-ADAA-342B93D6D713"docUuidSource="ZooBank"docVersion="6"id="0930CA7A3EDB571AA10D026EF39B1739"lastPageNumber="1"masterDocId="0930CA7A3EDB571AA10D026EF39B1739"masterDocTitle="Six new species of Horniella Raffray from the Oriental region (Coleoptera, Staphylinidae, Pselaphinae)"masterLastPageNumber="22"masterPageNumber="1"pageNumber="1"updateTime="1720468530034"updateUser="ExternalLinkService">
<mods:titleid="03018DFFB27D3238B60F6E0E7399C97C">Six new species of Horniella Raffray from the Oriental region (Coleoptera, Staphylinidae, Pselaphinae)</mods:title>
<mods:affiliationid="D618DAD73DFF6100EB3C3609E704B76F">Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China</mods:affiliation>
<mods:affiliationid="EA55DA299E1F8757B7C2447C394FBADF">Department of Entomology, National Chung Hsing University 145 Xingda Rd., South District, Taichung City 402, Taiwan, China</mods:affiliation>
<mods:affiliationid="1F8A79C237AF01CFB8F15E559D7339A3">Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai 200234, China</mods:affiliation>
<taxonomicNameid="8699AB5E338C4468C930B5E2A0C26476"ID-CoL="8Y4MD"LSID="http://zoobank.org/7DC18538-F16A-4665-ADAA-342B93D6D713"authority="Zhang & Yin"authorityName="Zhang & Yin"authorityYear="2021"class="Insecta"family="Staphylinidae"genus="Horniella"higherTaxonomySource="treatment-meta"kingdom="Animalia"lsidName="Horniella khasiensis"order="Coleoptera"pageId="0"pageNumber="1"phylum="Arthropoda"rank="species"species="khasiensis"status="sp. nov.">Horniella khasiensis Zhang & Yin</taxonomicName>
<figureCitationid="6D045743F17BF6441E9920F9466A9B68"captionStart="Figure 4"captionStartId="F4"captionText="Figure 4. Dorsal habitus of Horniella species A H. khasiensis sp. nov. B H. nantouensis sp. nov. Scale bars: 1 mm."figureDoi="10.3897/zookeys.1048.66576.figure4"httpUri="https://binary.pensoft.net/fig/551737"pageId="0"pageNumber="1">Figures 4A</figureCitation>
<figureCitationid="7D3C85E27F45B23683306D19DD1DF954"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">, 5</figureCitation>
Head wider than long, with distinct anterolateral genal projection, anterior margin of projection roundly emarginate; with markedly long ocular canthus; scape angularly expanded at middle of lateral margin, antennomeres 9-11 enlarged. Pronotum rounded at anterolateral margins. Protrochanter and profemur each with long ventral spine; mesotrochanter with short, small ventral tubercle. Tergite 1 (IV) with median carina extending posteriorly for approximately 1/4 of tergal length, lacking discal carinae, tergite VIII with large medioapical process. Aedeagus with slightly asymmetric median lobe, apex broadly truncate in dorso-ventral view; endophallus composed of three sclerites.
<figureCitationid="9C19A25CBF7FDC14FE08B0E0D4AFE884"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5A</figureCitation>
) wider than long, HL 0.56 mm, HW 0.63 mm; anterolateral genal projection distinct, anterior margin of projection roundly emarginate; antenna 1.85 mm long, scape angularly expanded at middle of lateral margin, antennomeres 2-8 slightly elongate or moniliform, club loosely formed by apical three moderately enlarged antennomeres, antennomere 11 largest, slightly shorter than antennomeres 9 and 10 combined; indistinct lateral postantennal pits present; eyes prominent, each composed of approximately 40 large facets, with markedly long and curved ocular canthi (Fig.
<figureCitationid="9C6F3D54431CFFCAFCED39B16C8764C4"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5B</figureCitation>
<taxonomicNameid="FDCECCFB54FED1B657CA1C1FABCD15EF"authorityName="Zhang & Yin"authorityYear="2021"class="Insecta"family="Staphylinidae"genus="Horniella"kingdom="Animalia"lsidName="Horniella khasiensis"order="Coleoptera"pageId="0"pageNumber="1"phylum="Arthropoda"rank="species"species="khasiensis">
<paragraphid="B13298FA41CF866F72458C38577D8DC2"pageId="0"pageNumber="1">Pronotum as long as wide, PL and PW 0.64 mm, widest anterior to middle; lateral margins rounded; disc moderately convex, finely punctate, with distinct median antebasal and lateral antebasal foveae connected by complete transverse antebasal sulcus.</paragraph>
<paragraphid="0B89223FD2CF3C2E492967D0C2E808D7"pageId="0"pageNumber="1">Elytra much wider than long, EL 0.75 mm, EW 1.2 mm; each elytron with two large, setose basal foveae; discal striae extending from outer basal foveae to near posterior margin of elytra.</paragraph>
<figureCitationid="E0519B645A6C4F1B8B9EAF888D51B981"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5C</figureCitation>
<figureCitationid="0270C02AB71FED6240F92B4FC671C029"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5C</figureCitation>
<figureCitationid="F1D7F92C954AD1DB05AD909FFA4CEE69"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5D</figureCitation>
<figureCitationid="AAFFC685D831D7731E228953F052C38F"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5E</figureCitation>
<figureCitationid="CCA5BA62A087106672FC85B7F6D5C6C1"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5E</figureCitation>
<figureCitationid="0D40D9144E9BC60B2E5570B5E762CF3D"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5F</figureCitation>
<paragraphid="FA4D553D058E80BE2368F73664CE64D7"pageId="0"pageNumber="1">Abdomen broader than long, broadest at lateral margins of tergite 1 (IV), AL 0.89 mm, AW 1.21 mm; tergite 1 (IV) largest, as long as tergites 2 and 3 (V and VI) combined, with short median carina extending to near basal 1/4 of tergal length, lacking discal carinae, tergite 2 (V) lacking carina, tergites 2-4 (V-VII) each with small basolateral foveae, tergite 5 (VIII) with large medioapical process. Sternite 2 (IV) with broad basal sulcus, lacking mediobasal foveae, basolateral foveae developed as large cuticular pockets, with two pairs of antebasal nodules, sternites 3-5 (V-VII) with basolateral foveae, one median and two lateral nodules, sternite 7 (IX) nearly oval, with well-sclerotized apical half and less sclerotized basal half.</paragraph>
<figureCitationid="078DFB1AA78456B285614DD92A817C7E"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Diagnostic characters of Horniella khasiensis sp. nov. A left half of head, in dorsal view B head, in lateral view C protrochanter and profemur D protibia E mesotrochanter and mesofemur F mesotibia G-I aedeagus, in dorsal (G), lateral (H) and ventral (I) view. Scale bars: 0.2 mm (A-I)."figureDoi="10.3897/zookeys.1048.66576.figure5"httpUri="https://binary.pensoft.net/fig/551738"pageId="0"pageNumber="1">5G-I</figureCitation>
) 0.59 mm long, median lobe nearly symmetric, apex broadly truncate; endophallus composed of three sclerites: one elongate, plate-like sclerite with curved lobe at apex; one curved sclerite at base, and one much narrower sclerite at left.
Yin & Li in having similar spination of the legs and a general aedeagal form. They can be clearly separated by the more distinctly expanded basolateral margin of the scape, tergite VIII with a large medioapical process, and the different structure of the aedeagal endophallus.
<paragraphid="D0642623F9A93D9B5E7ACF2F1570F666"pageId="0"pageNumber="1">The new species is named after its type locality, the East Khasi Hills.</paragraph>
