Procoryphaeus pilosus ( Lewis, 1893 )

Lackner, Tomáš, 2015, Revision of the genus Procoryphaeus Mazur, 1984 (Coleoptera: Histeridae: Histerinae: Exosternini), Zootaxa 4044 (2), pp. 289-300 : 297-298

Procoryphaeus pilosus ( Lewis, 1893)

( Figs. 18–21 )

Coryphaeus pilosus Lewis, 1893: 423 .

Procoryphaeus pilosus: Mazur (1984): 275 ; Mazur (1997): 41; Mazur (2011): 38.

Type locality. Tanimbar Island, Indonesia.

Type material examined. Coryphaeus pilosus : Lectotype (present designation), ♀, mounted at the tip of a mounting card, left protarsus missing, with the following labels: “♀” (printed); followed by: “Tenimber / Doherty / 30.12. 92 ” (written); followed by: “ Type ” (red-margined round printed label); followed by: “G. Lewis Coll. / B.M. 1926-369”; followed by: “ Coryphaeus / pilosus / Type Lewis” (written); followed by: “ Coryphaeus / pilosus / Lewis, 1893 / Des. T. Lackner 2015 / LECTOTYPE ” (red label, written) (NHM). This species was described based on the unknown number of specimens and the lectotype designation fixes its identity.

Additional material examined. None.

Diagnostic description. Most readily recognizable species; PEL: 5.10 mm; APW: 2.00 mm; PPW: 4.20 mm; EW: 4.60 mm; EL: 3.20 mm. Entire body ( Figs 18 –19), including appendages covered with very dense short amber setae, resembling a kiwi fruit; elytra much more densely punctuate than the two preceding species, punctures separated by their own to less than their own diameter. Inwardly curved frontal stria ( Fig. 20) intermittent; supraorbital stria vague (absent?). Variolate punctures of lateral pronotal band distinctly less coarse and dense than with the preceding two species; tiny tubercle of the pre-scutellar area of pronotum more prominent than in the preceding two species. Outer subhumeral stria very vague; joined humeral and inner subhumeral striae surpassing elytral half apically, shorter than in the rest of congeners. Only first discal elytral stria complete, second and third shortened apically; fourth, fifth discal elytral as well as sutural striae lacking; a longitudinal groove resembling a stria present near elytral suture. Apical elytral stria absent. Propygidium and pygidium much more densely punctate than in the preceding species, punctuation even, punctures small and dense separated by about their own diameter. Prosternum ( Fig. 21 ) densely punctuate; carinal prosternal striae vaguely joined anteriorly. Mesoventrite ( Fig. 21 ) much more densely punctuate than the preceding two species, punctures separated by about their own diameter; punctures present also on basal half of metaventrite. Male unavailable.

Figures

FIGURE 18. Procoryphaeus pilosus (Lewis, 1893) habitus, dorsal view. FIGURE 19. ditto, ventral view.

FIGURE 21. Procoryphaeus pilosus (Lewis, 1893) prosternum, mesoventrite + metaventrite.