Cyclocaccus smileyeyes Hisamatsu, 2016

Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870

Cyclocaccus smileyeyes Hisamatsu , new species ( Figs. 15F , 20 , Map 5)

Type Series. Holotype ( SEMC): ♂, ‘ BOLIVIA: Cochabamba / Cochabamba, 117 km E / Yungas, (Cochabamba- / Villa Tunari Rd. ), 1,040 m / 17°6′32″S, 65°41′12″W / 1–6 FEB 1999; R. Hanley / BOL1H99 028 / ex: flight intercept trap // SMO117988 / KUNHM–ENT .’. Paratypes: [ PERU] 1♀, Cocha Salvador, Reserved Zone, Manu National Park , Madre de Dios, 310 m, 12°00′13″S, 71°31′36″W, ex: flight intercept trap, 20–21. X. 2000, R. Brooks leg. ( SEMC) . [ BOLIVIA] 1♀, 109 km E. Yungas, Cochabamba Villa Tunari Rd. , Cochabamba, 1,480 m, 17°08′50″S, 65°42′29″W, ex: flight intercept trap, 8–12. II. 1999, R. Hanley leg. ( SEMC) ; 1♀, 67.5 km E. Villa Tunari, Est. Biol. Valle Saita, Univ. San Simon, 300 m, Cochabamba, 300 m, 17°06′19″S, 64°46′57″W, ex: lowland rain forest, 9–13. II. 1999, F. Génier leg. ( ARCC)

Etymology. The specific epithet of the new species is a combination of letters suggestive of the peculiar pronotal maculation.

Diagnosis. This species differs from other congeners by the following combination of characters: pronotum and elytra different in color, with a black, oval spot on each side of midline and widely rounded U-shaped maculation adjacent to basal margin of pronotum; metathoracic discrimen present in apical fourth; metanepisternum impunctate; subcoxal lines on abdominal sternite III present; pro- and mesotarsal segments II and III of males moderately dilated; tegmen very long, subparallelsided; TL/TW = 3.06 (n = 1); apical margin of tegmen widely rounded in ventral view; apices of gonocoxites square, with widely rounded apicolateral corners.

Similar Species. This new species is similar to C. stonyx in the shapes of antennal segment XI and male genitalia, but can be distinguished by the following combination of characters: pronotum with maculation; shape of sclerites of internal sac different; lateral margins of gonocoxites widely rounded.

Description. Length 2.17–2.52 (2.38) mm, width 1.88–2.03 (1.98) mm, depth 1.09–1.19 (1.13) mm (n = 3). Male. Body ( Fig. 15F ) oval; dorsal disc of head and elytra dark reddish brown to jet black; antennal segments I–VIII, prosternum (except darker apical area), hypomera, elytral epipleura, and tarsus reddish yellow to reddish brown; elytra usually with reddish yellow maculation on each side of scutellum, but rarely absent; apical area of prosternal process, metaventrite, abdominal sternites, each leg (except tarsus) reddish brown to dark reddish brown; antennal club dark brown (except apical area of segment XI paler); pronotum reddish yellow to reddish brown, with a black spot on each side of midline and widely round U-shaped maculation adjacent to basal margin of pronotum. Head: Dorsal disc densely punctate; interspaces reticulate. Labrum feebly notched at middle. Antenna ( Fig. 20C ) with club long and large, ACL/ASI-VIII = 0.76 (n = 1); antennal segment XI with 2 oval antennal sensillae; approximate ratio of each segment (n = 1) 4.65: 2.53: 2.69: 1.68: 1.87: 1.44: 1.00: 1.00: 2.91: 2.86: 7.09. Pronotum: 2.86–3.36 (3.05) times as wide as long (n = 3); disc densely punctate; disc with 2 kinds of punctures, large punctures, slightly smaller than eye facets, and minute punctures; interspaces reticulate. Scutellum: Disc densely punctate; punctures on disc similar to those of pronotum; interspaces reticulate. Elytra: 0.87–0.97 (0.93) times as long as wide (n = 3), 3.06–3.99 (3.38) times as long as pronotum (n = 3), widest at basal 1/3; each elytron with 9 regular rows of punctures about as large as eye facet; interstices with sparse, minute punctures. Venter: Prosternum strongly convex along midline, with tuft of setae at middle. Metaventrite strongly convex; metathoracic discrimen present in apical 1/4; metanepisternum impunctate; abdominal sternite III with subcoxal lines; lateral margins of abdominal sternite VII serrate. Legs: Robust; pro- and mesotarsal segments I–III moderately dilated; tarsal claws simple. Genitalia: Tegmen ( Fig. 20A ) subparallel-sided; TL/TW = 3.06 (n = 1); apical margin of tegmen widely rounded in ventral view; sclerites of internal sac as in Fig. 20B . Female. Prosternum without tuft of setae at middle. Pro- and mesotarsal segments I–III more weakly dilated than those of males. Ovipositor ( Fig. 20D ) with squared apices of gonocoxites; apicolateral corners of gonocoxites widely rounded.

Variability. Elytra usually completely black, but rarely each side of scutellum with a yellowish spot.

Distribution. Peru and Bolivia (Map 5).

Figures

Fig. 15. Dorsal habitus of Cyclocaccus species in the C. morulus species-group. A) C. lescheni, holotype, B) C. stonyx, holotype, Costa Rica, C) C. stonyx, Panama, D) C. stonyx, Ecuador, E) C. morulus, holotype, F) C. smileyeyes, holotype, Bolivia, G) C. intermediatus, holotype. Scale bars = 1 mm.

Fig. 20. Cyclocaccus smileyeyes, Bolivia. A) Tegmen, holotype, ventral view, B) Median lobe, holotype, ventral view