Gonaphodiellus nigrinus ( Schmidt, 1916 ) Dellacasa & Dellacasa & Gordon, 2012

Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2012, Systematic revision of Gonaphodiellus taxa, with description of two new genera and fourteen new species (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2012 (230), pp. 1-41 : 10

Gonaphodiellus nigrinus ( Schmidt, 1916) new status and new combination

( Fig. 33-37 )

Aphodius (Gonaphodiellus) pacatus var. nigrinus Schmidt, 1916: 115 .

Aphodius (Gonaphodiellus) pacatus ab. nigrinus ; Dellacasa 1988: 97.

Type locality. S[an]. Anton[io]., Curaray [ Peru].

Type repository. Naturhistoriska Riksmuseet. Stockholm (type examined).

Redescription. Length 3.5-4.0 mm; oval, convex, shiny, glabrous. Dark brown; clypeal margin, base and sides of pronotum, and elytral apex yellowish brown; legs brownish-yellow; antennal club brownish. Head with epistome feebly gibbous on disc, superficially alutaceous, finely evenly, not closely punctured; clypeus anteriorly subtruncate and thickly bordered, widely round and finely bordered at sides, edge glabrous; genae obtusely round, almost glabrous; faintly protruding from the eyes; eyes large; frontal suture extremely fine, obsolete laterally; front evenly sparsely punctured. Pronotum broadly transverse, moderately convex, dually punctured; large coarse punctures, four to five times larger than small ones, irregularly scattered; denser and coarser on sides, much sparser and superficial toward disc and therein lacking; small punctures not closely, evenly sparse throughout, more superficial and sparse medially; lateral margins feebly arcuate, rather finely bordered, edge glabrous; hind angles widely obliquely truncate, truncation feebly sinuate inwardly; base bisinuate. Scutellum rather narrowly elongate, somewhat concave; finely punctured on basal half. Elytra oval, broadened posteriorly, not denticulate at shoulder, finely striate; striae superficially punctured, feebly crenulate; interstriae finely alutaceous, almost flat, nearly imperceptibly sparsely punctured. Hind tibiae upper spur almost as long as first tarsal segment; first tarsal segment longer than following three segments combined. Male: head and pronotum relatively more transverse, less convex and less densely coarsely punctured; aedeagus Fig. 36-37 . Female: head and pronotum relatively narrower anteriorly, more convex and more densely coarsely punctured.

Material examined. ECUADOR: Napo Prov., Yasuni Research Station , 0°38’S- 76°36’W, m 250, 17- 31.X.1998, leg. Dozier B. K. (1 ex., FSCA) ; Napo Prov., Yasuni National Park , m 300, 09-17.VIII.2000, at light, leg. Sforzi A. & Bartolozzi L., at light (2 exx., DCGI, MZUF) . PERU: S[an]. Anton [io]., Curaray, … Ohs., 20.I.06 (1 female, syntype, RMS) ; S[an]. Anton [io]., Curaray (1 female syntype, NHRS) ; Iquitos, Peru , 28.I.1983, leg. Dellacasa E. & G., airport lights (1 ex., DCGI) .

Distribution. Ecuador, Peru.

Bionomics. Unknown. One of the few specimens examined was collected at light.

Figures

Figure 33-42. Gonaphodiellus nigrinus (Schmidt, 1916) (Yasuni National Park, Napo Prov., Ecuador). 33) Epipharynx. 34-35) Habitus (length ideogram and morphological details). 36-37) Aedeagus (dorsal and lateral view). Gonaphodiellus omiltemicus, new species (Omiltemi, Guerrero, Mexico). 38) Epipharynx. 39- 40) Habitus (morphological details and length ideogram). 41-42) Aedeagus (dorsal and lateral view).