Hypogena akuma, Grey & Smith, 2020

Grey, Luna & Smith, Aaron D., 2020, A matrix-based revision of the genus Hypogena Dejean, 1834 (Coleoptera Tenebrionidae), Zootaxa 4780 (2), pp. 201-258 : 219

Hypogena akuma sp. nov.

( Fig. 10 )

urn:lsid:zoobank.org:act:A8A3A916-5ADC-4B24-9429-F3DF4BD2A091

Type Material: HOLOTYPE (Male) labeled: (a) “ Brazil:”; (b) “ Rondonia / 62 km SW Ariguemes / nr. Fdza Rancho Grande / 8-20-XI-1994 ”; (c) “ J. Eger; C. O’Brien ”; (d) “black light”; (e) “ HOLOTYPE / Hypogena / akuma / Grey & Smith, 2020” ( FSCA). Designated here.

Diagnosis: This species is distinguished from all other Hypogena species by the presence of a dense line of setae on the proximal end of the medial edge of each femur. It also has horns similar to those of H. marginata , but shorter and straighter than in the type for that species. As many species of Hypogena have both major and minor males, it is unclear whether this is a major male or a minor male.

Description: Male. Size. Length 8—9 mm; width 2—3 mm.

Head. Distance between eye and cardo much smaller than width of cardo (34:1); cardo directly adjacent to eye. Clypeal horn weakly produced (4:1; 5:0) and not emarginated (6: 0); projected forward (8:0). Supraorbital horns short (10:1); tuberculate (11:0); not bent after initial production (12:0; 14:0); projected perpendicular from eye (13:1); finely punctate (15:1). Punctures on vertex and frons smaller than eye facets (26: 1). Antennae do not form club (17:1). Length of third antennomere less than 1.5 times size of fourth antennomere and is more than 1.5x size of second (18:1; 19:2); antennae with stellate sensoria (22:0). Gena not extending laterally past eye (36:0). Anterior edge of clypeus flat, corners rounded (29:1). Mentum trapezoidal and flat (40:0; 43:0); punctate and setose (42:1; 41:1). Labrum fully setose (39:1). Groove on mandible present, continuing to attachment point on cranium (44:1). Thorax. Puncturing on pronotum biordinal in size (54:1); Coarse punctures approximately size of eye facets; scattered across pronotum (57:2). From lateral view, pronotum flat (58:0). Lateral margins of pronotum not parallel (61:0). Margins of pronotum expanded larger than size of one coarse puncture (62:2). Pronotum narrowest anteriorly (59:1). Anterior edge of pronotum extending to middle of eye, but not past middle of eye (63:1). Hypomeron almost smooth, not punctate (75:0); not setose (76:0). Row of cuticular teeth present on posterior edge of metasternum (77:1). Mesepisternum punctate; punctures equal to size of eye facets (71:2); punctures separated by less than one diameter (72:1); not setose (73:0). Prosternum punctate; punctures smaller than eye facets (67:1); not setose (66:0); separated by less than one diameter (68:1). Prosternal process extends past posterior margin of pronotum (69:1). Elytra striate and shallowly punctate (46:1; 47:1); punctures separated by less than one diameter (48:0). Elytral interstices convex and punctate (49:1) punctures smaller than one fourth of size of one strial puncture (50:1); punctures separated by more than one diameter (51:1).

Abdomen. Anterior fourth of first three visible abdominal sternites laterally rugulose (89:2; 90:2; 91:2). All abdominal sternites punctate and glabrous (94:0).

Legs. Tarsi pubescent. Cuticular outgrowths present on first two protarsomeres (86:1). Tibiae with two apical spurs (85:1). Lateral edge of protibia with less than 6 socketed spines on distal fourth of tibia (81:0). Spines present on medial edge of protibia (80:1). Brush of setae present distally on medial edge of tibiae (84:1). Medial edge of femurs with distinct line of setae (78:1).

Female. Unknown.

Distribution. Brazil (Rondônia).

Etymology. The specific epithet is derived from the Japanese name for a devil or demon. This is in reference to the male horns, which are similar to those in popular portrayals of demons. It is feminine.

Figures

FIGURE 10: Hypogena akuma, Holotype, male. Dorsal view, lateral view, and labels.