Calloeneis appropinquan

Gordon, Robert D., F, Guillermo González & Hanley, Guy A., 2020, South American Coccinellidae (Coleoptera), part XX: systematic revision of South American Calloeneis Grote (Cryptognathini), Insecta Mundi 2020 (766), pp. 1-25 : 13-14

16. Calloeneis appropinquan s (Crotch), new combination

Cryptognatha appropinquans Crotch 1874: 207 ; Korschefsky 1931: 219; Blackwelder 1945: 449; Gordon 1987: 26.

Description. Male holotype. Length 1.7 mm, width 1.5 mm; dorsal surface shiny except head faintly alutaceous. Color black; head yellow, pronotum with anterolateral angle yellow ( Fig. 69 ); prosternum, legs yellow; epipleuron brown; meso- metasternum black; abdomen yellow with median 1/3 of basal ventrite, anterior 1/2 of ventrites 2, 4 brown. Head with dense punctures separated by less than a diameter; pronotal punctures small, separated by a diameter or less; elytral punctures larger than on pronotum, separated by up to twice a diameter; prosternal punctures small, indistinct, separated by about a diameter; mesosternal punctures larger than on prosternum, separated by less than a diameter, metasternal punctures large, separated by less than a diameter medially, absent in lateral 1/3; basal abdominal ventrite with coarse punctures in median 1/3 separated by up to twice a diameter, ventrite 2 coarsely punctured in median 2/3, punctures separated by less than a diameter, ventrites 3, 4 finely, densely punctured medially; ventrite 5 finely, densely punctured. Head slightly narrowed from vertex to clypeus, medially depressed, 1.5 times as wide as eye, clypeal apex weakly curved ( Fig. 70 ); eye canthus short, about half width of eye. Prosternum with lateral carina on each side curved, extended from apex of intercoxal process to lateral margin of prosternum. Epipleuron not descending externally. Postcoxal line on basal abdominal ventrite curved, extended 3/4 distance to rear margin of ventrite. Genitalia short, penis guide as long as paramere, tapered from wide base to abruptly rounded apex; paramere widened from base to setiferous apex ( Fig.71 ); penis lost.

Female. Unknown.

Variation. Unknown.

Type locality. Brazil, Rio de Janeiro. Gordon (1987) (holotype).

Type depository. UMZC.

Geographical distribution. Brazil.

Specimens examined. 2. Brasil. Rio de Janerio (holotype) Teresopolis. ( UMZC, USNM).

Remarks. Calloeneis appropinquans is a very small species that is difficult to distinguish from other black taxa except by examination of male genitalia. Genitalia are similar to those of C. bennetti but considered sufficiently different to maintain both species.

Figures

Figures 69–80. Calloeneis spp.69–71) Calloeneis appropinquans. 69) Habitus.70) Frons.71) Penis guide ventral. 72–76) Calloeneis rosalie. 72) Habitus.73) Frons.74) Penis guide ventral.75) Penis guide lateral.76) Penis.77–80) Calloeneis bennetti. 77) Habitus. 78) Frons. 79) Penis guide ventral. 80) Penis guide lateral.