Calloeneis bennetti Gordon

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 : 15

18. Calloeneis bennetti Gordon

Calloeneis bennetti Gordon 1978: 216 .

Description. Male. Length 1.7 mm, width 1.6 mm; dorsal surface shiny except head faintly alutaceous. Color black ( Fig. 77 ); head with vertex, median area of frons dark brown, lateral area of frons next to eye, clypeus yellowish brown; ventral surface yellow except mesosternum reddish brown, prosternum, metasternum dark brown; abdomen yellow with median 1/3 of basal ventrite brown. Head with dense punctures separated by less than a diameter; pronotal punctures small, separated by less than a diameter; elytral punctures larger than on pronotum, separated by a diameter or less; prosternal, meso-, metasternal punctures distinct, separated by about a diameter or less; basal abdominal ventrite without visible punctures, ventrites 2, 3 finely punctured, ventrites 3, 4 finely, densely punctured medially; ventrite 5 finely, densely punctured. Head slightly widened from middle of frons to clypeal apex, clypeal apex slightly rounded ( Fig. 78 ); 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 with penis guide 5/8 as long as paramere, widened anterior to base, then abruptly tapered to acute, slightly emarginate apex; paramere gradually widened from base to apex ( Fig. 79, 80 ); penis lost.

Female. Similar to male except head entirely brown, genitalia with ramus of spermathecal capsule bulbous, cornu narrowed from base to abruptly rounded apex ( Figure 33 in Gordon, 1978).

Variation. Length 1.5 to 1.7 mm, width 1.4 to 1.6 mm., male head may be entirely yellow with lateral 1/3 of pronotum yellow.

Type locality. Trinidad, Mayaro.

Type depository. USNM.

Geographical distribution. Trinidad.

Specimens examined. 6. Trinidad. Imperial College, Mayaro; Morne Bleu, St. Augustine.

Remarks. This is another dorsally black species separable from other such species only by examination of male genitalia.

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.

Figures 26–37. Calloeneis spp. 26–29) Calloeneis myra. 26) Habitus.27) Frons.28) Penis guide ventral. 29) Penis guide lateral. 30–31) Calloeneis leticia. 30) Habitus. 31) Frons. 32–37) Calloeneis signata. 32) Habitus. 33) Frons. 34) Penis guide ventral. 35) Penis guide lateral. 36) Penis. 37) Spermathecal capsule.