Homalochilus nigripennis Cherman, 2024
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publication ID |
https://doi.org/ 10.1093/zoolinnean/zlad115 |
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publication LSID |
lsid:zoobank.org:pub:E6D9AF7E-F0AD-4656-B2F2-7FBFAA0312B3R |
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DOI |
https://doi.org/10.5281/zenodo.11247703 |
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persistent identifier |
https://treatment.plazi.org/id/03D18442-FFDC-FF9B-317C-FF6E5C70FF7D |
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treatment provided by |
Plazi |
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scientific name |
Homalochilus nigripennis Cherman |
| status |
sp. nov. |
Homalochilus nigripennis Cherman View in CoL , sp. nov.
( Fig. 6A–G View Figure 6 )
Type material
ZooBank: urn:lsid:zoobank.org:act:51B1BCAE-E8E3-4ED7-B406-D5691B40352A
Homalochilus nigripennis holotype, ♂, (NHMB): [white typeset] ‘Humahuaca/ Argentina / 2950 m, I.56’, [white handwritten] ‘ Homalochilus /niger Blanch’, [white, outlined black, typeset and handwritten] ‘ Homalochilus /puntatostriatus/ Bl/ det. Cherman M. A. 2018’, [red typeset] ‘ HOMALOCHILUS / NIGRIPENNIS/HOLOTYPE/Cherman M. A.’, genitalia mounted . Paratypes (117), all bearing the label [yellow typeset and handwritten] ‘ HOMALOCHILUS /NIGRIPENNIS/ PARATYPE/Cherman M. A.’. Twenty-four ♀ and 56 ♂ paratypes (NHMB) with the same data as the holotype. Among those, one ♀ and eight ♂ paratypes with an additional label [white, outlined black, typeset and handwritten] ‘ Homalochilus niger /det. 1964/A. Martínez’. One ♀ and five ♂ paratypes (NHMB): [white typeset] ‘Cienaguilla, Arg./ Jujuy, 3500m / Pena, 9.2.70 ’. One ♂ paratype (MZUC): [white handwritten] ‘1340’, [white handwritten] ‘ Argentina /Humahuaca/ Jujuy Bosq/II.44 ’, [ white typeset and handwritten] ‘ Homalochilus / punctatostriatus/M.A. Cherman det. 2016’. One ♂ paratype (MZUC) : [ white handwritten] ‘1341’, [white handwritten] ‘ Argentina /Humahuaca/ Jujuy Bosq/II.44’, [white typeset and handwritten] ‘ Homalochilus / niger Blanch /R. Gutierrez-Det ♂ /52 ’. One ♂ paratype (CMNC): [white typeset] ‘ ARGENTINA /Humahuaca/ 6 January 1956 / 2950 m.s.n.m.’. One ♂ and one ♀ paratypes (CMNC): [white handwritten] ‘ ARGENTINA /Do Cochinoca/ Jujuy /Tres Cruces/Coll. Martínez/Dic.-944’, [white typeset] ‘H. & A. HOWDEN/ COLLECTION/ ex. A.Martinez coll.’. One ♂ paratype (CMNC): [white typeset and handwritten] ‘ ARGENTINA / Jujuy /La Quiaca/COLL. DURET/1944/Cipolletti leg.’, [white typeset] ‘H. & A. HOWDEN/COLLECTION/ ex. A.Martinez coll.’ , [white typeset and handwritten] ‘ Homalochilus / niger/Blanch./A.MARTINEZ-DET.1956’. One ♀ paratype (CMNC): [white typeset] ‘Sgo. de ESTERO/RIO SALADO/ WAGNER COL’ , [ white typeset] ‘H. & A. HOWDEN/ COLLECTION/ ex. A.Martinez coll.’. One ♂ and one ♀ paratypes mounted on the same pin (CMNC): [white handwritten] ‘ ARGENTINA / JUJUY /La Quiaca/Cipolletti-leg./ Coll. Martínez/Dic.-943 ’, [ white typeset] ‘H. & A. HOWDEN/ COLLECTION/ ex. A.Martinez coll.’, [white typeset and handwritten] ‘ Homalochilus /niger/Bl./A.MARTINEZ-DET.1956’ . Ten ♂ and three ♀ paratypes (UMRM), three ♂ and one ♀ paratype (CMNC), and three ♂ and one ♀ paratype (DZUP): [white typeset] ‘ ARGENTINA /Humahuaca/ 6 January 1956 / 2950 m. s. n. m .’. Two ♂ paratypes (UMRM): [white typeset] ‘ ARGENTINA /Tres Cruces/ 6 Enero 1956 / 3400 m.’.
Holotype and 86 paratypes deposited at NHMB. Ten paratypes at CMNC. Three paratypes at CEMT. Two paratypes at DZUP. Fifteen paratypes at UMRM. One paratype at MZUC.
Diagnosis
Body, head, and pronotum entirely black, semiopaque; elytra entirely black, semiopaque, unicolorous with body ( Fig. 6A View Figure 6 ); clypeus slightly lobed, head as long as pronotum ( Fig. 6B View Figure 6 ); fovea of distal maxillary palpomere reaching the midline; club of antenna slightly shorter than the funicle; anterior margin of pronotum slightly constricted; disc coarsely and roughly punctate; pronotal posterior corners subangulate ( Fig. 6B View Figure 6 ); metacoxae slightly shorter than the distance between mesocoxae and metacoxae; elytra near two times longer than the pronotum; four elytral ridges, both outermost less noticeable, sparse long bristles along the sutural ridge, scattered bristles on disc, erect long setae on apex of elytra present; protarsomere I longer than tarsomere II in both sexes; disc of ventrites with long bristles ( Fig. 6C View Figure 6 ); pygidium subtrapezoidal ( Fig. 6D View Figure 6 ); parameres with apex curved downwards, forming right angle with the longitudinal axis ( Fig. 6F, G View Figure 6 ).
Holotype description
Length: 8.0 mm; width: 4.9 mm. Body short, semiopaque, sides parallel, body, head, and pronotum black, elytra on disc red and on margins black; glabrous; eyes almost entirely placed laterally, frons almost as wide as the anterior margin of pronotum; frons and clypeus coplanar; clypeus truncate; galea of maxilla with two teeth, the apical stronger; distal maxillary palpomere acuminate, fovea deep, reaching the midline of the palpomere; labium widened at the transverse midline, slightly wider than it is long; sloped from the transverse carina towards apex; apical emargination wide and rounded; antenna black, with nine antennomeres, club and as long as the funicle; pronotal anterior corners scaly, fused with hypomeron; pronotal disc coarsely punctate, simple punctures sparsely disposed; posterior corners obtuse angulate; mesocoxae and metacoxae almost equal in length; scutellum long; elytra flattened, near 1.5 longer than the pronotum; four elytral ridges, the outermost less noticeable; subapical callus strong, callus and apex of the sutural ridge at the same level; three protibial teeth, the basal tooth shorter than the other two (angle obtuse in relation to axis); mesotibia cylindrical, two transverse carina, the apical complete; metatibial spurs strongly uneven ( Fig. 6E View Figure 6 ), the longest almost two times the diameter of the tibial apex; all tarsi cylindrical (in both sexes), protarsal claws simple, mesotarsal and metatarsal claws bifid (in females all claws bifid); protarsomere I slightly shorter than tarsomere II (in both sexes); propygidium exposed, scaly in basal region, mostly glabrous; pygidium flat, as wide as it is long; subtrapezoidal; pygidial disc glabrous, scaly basally; basal region strongly sulcate, basally widened and slightly swollen; parameres narrow, as long as the basal region, apex curved downwards, forming right angle with the longitudinal axis.
Variation
Male paratypes: Length: 8.0– 9.4 mm; width: 4.2–5.0 mm.
Female paratypes: Length: 8.0– 9.6 mm; width: 4.2–5.0 mm. The females also have the apical carina on mesotibia complete, while the metatibial spurs are strongly uneven especially in males.
Type locality ARGENTINA. Jujuy, Humahuaca [23°12ʹ45.4ʹʹS 65°20ʹ54.0ʹʹW].
Geographical distribution
ARGENTINA (Jujuy, Santiago del Estero).
Remarks
Gutiérrez (1952: 213, 214) erroneously used part of the type series in his redescription of Homalochilus niger .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.