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

publication ID

https://doi.org/ 10.11646/zootaxa.4780.2.1

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scientific name

Hypogena akuma

sp. nov.

Hypogena akuma sp. nov.

( Fig. 10 View FIGURE 10 )


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.


Florida State Collection of Arthropods, The Museum of Entomology













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