Parasthetops buunicornus, Perkins, 2008

Perkins, Philip D., 2008, Facial affect recognition in individuals at clinical high risk for psychosis, Zootaxa 1864, pp. 1-124 : 16-17

Parasthetops buunicornus new species

( Figs. 10 , 13 , 98 )

Type Material. Holotype (male): Lesotho: Drakensberg , Sani Pass Valley, water collection, 29° 36' S, 29° 20' E, 8 March 1976, Endrödy­Younga (#1053). Deposited in the TMSA . Paratypes (2): Lesotho: Drakensberg , Sani Pass Valley , shore washing, 29° 36' S, 29° 20' E, 10 March 1976, Endrödy­Younga (#1062) (1 TMSA); Drakensberg, Sani Pass Valley, water collection, 29° 36' S, 29° 20' E, 8 March 1976, Endrödy­ Younga (#1053) (1 TMSA) .

Differential Diagnosis. Recognized by the large size (ca. 2.28 mm), the moderately wide elytral intervals, the absence of discernible setae on the elytral series and intervals, and the strongly shining pronotal reliefs. This species is somewhat similar in dorsal habitus to the smaller P. unicornus ( Figs. 9 , 10 ). The aedeagi of the two species, while distinct from one another, clearly indicate a rather close relationship ( Figs. 11, 13 ).

Description. Size (length/width, mm) holotype: body (length to elytral apices) 2.28/0.93; head 0.41/ 0.54; pronotum 0.48/0.69; elytra 1.40 /0.93. Dorsum piceous to black, maxillary palpi, legs and venter dark brown. Mentum and submentum microreticulate and sparsely, sharply punctulate.

Head with labrum finely, sparsely punctulate, shining. Clypeus and frons microreticulate laterally, disc shining, finely sparsely punctulate, punctures separated by about 2–4xpd, size of punctures slightly less than 1xef. Anteocellar sulci deep. Ocelli distinct.

Pronotum cordate, widest in front of middle; anterior angles obtuse, posterior rectangular; sides finely margined, weakly crenulate; anterior margin shallowly arcuate over median 2/3, with narrow hyaline border; discal reliefs strongly shining, finely, sparsely punctate, interstices ca. 4–8xpd; punctures slightly smaller than frons punctures; anteriorly and posteriorly punctures much larger, about 2–3xef; with foveae as follow: median anterior elongate and smaller posterior, shallowly confluent; a small anterior and larger oval posterior admedian; and a large anterior and small deep posterior adlateral on each side; foveae punctate and microreticulate; punctures on discal reliefs without discernible setae.

Elytra non­carinate, slightly humped at transversely convex, moderately abrupt posterior declivity; sides weakly arcuate, apices separately widely rounded; sutural apices slightly obtuse; sides smooth, weakly explanate. Serial punctures moderately large and deep, on disc slightly larger than largest pronotal punctures, interstices on disc about 2xpd; punctures of some series becoming progressively smaller and more widely spaced over posterior declivity; without granules; punctures without discernible setae. Series one striateimpressed, more strongly in posterior 1/2 than anterior 1/2. Intervals weakly rounded, width on disc about 2– 3xpd; each interval with unilinear row of very sparse punctures, without discernible setae.

Thoracic ventrites and abdominal ventrites 1–5 densely clothed with short setae, except glabrous midlongitudinal ridge on proventrite, mesoventrite plaques, and small glabrous area basomedially on metaventrite. Metaventrite with nearly circular, moderately deep median impression. Abdominal ventrites 6 glabrous and obsoletely microreticulate, with posterior band of piliferous punctures.

Legs of male with two or three spiniform setae on apical protarsomere. Femora and tibiae effacedly microreticulate.

Wings reduced, about 3/4 length of elytron. Females not yet known.

Aedeagus length ca. 0.77 mm, distal process 0.23 mm; main­piece, in ventral view, arcuate on right side, apical angulation large; distal process long and strong, widened at apex ( Fig. 13 ).

Etymology. Named in reference to the aedeagal form.

Distribution. Currently known only from the type locality in the Sani Pass Valley of the Drakensberg Mountains, Lesotho ( Fig. 98 ).

Figures

FIGURE 9. Parasthetops unicornus, dorsal and lateral habitus of holotype.

FIGURE 10. Parasthetops buunicornus, dorsal and lateral habitus of holotype.

FIGURES 11–14. Parasthetops, aedeagi of holotypes. —11. P. unicornus. —12. P. sebastiani. —13. P. buunicornus. —14. P. propitius.

FIGURES 97–100. Geographical distributions of Parasthetops species.