Crossomeles acutipennis Chemsak & Noguera, 1993

Nearns, Eugenio H. & Swift, Ian P., 2022, Descriptions and new records in longhorned beetles (Coleoptera: Cerambycidae) from Central America, Zootaxa 5141 (1), pp. 39-48 : 44

Crossomeles acutipennis Chemsak & Noguera, 1993

( Figures 3a–d , 5a, 5e, 5i )

Diagnosis and remarks. This species can be separated from congeners by the elytra longer, extending to near posterior margin of abdominal segment I, narrowly rounded apically; genae about 1/2 as long as lower lobe of eye. In male specimens examined, the eyes are narrowly separated in front by about 7 ommatidia, while in females they are widely separated by more than 20 ommatidia, or about 2/3 width of an eye lobe. Antennomeres VI–XI of both sexes with small, indistinct sensory pores on dorsal and ventral surface of each antennomere (not reported in original description).

This species was described from a series of 17 specimens (11 males, six females) from Mexico (Jalisco). The authors mention additional specimens from El Salvador and Mexico (Chiapas) which they considered to be conspecific but differed by having the head, pronotum, and antennae black instead of reddish orange (as in Fig. 3a–d ). Swift et al. (2010) listed this species from Costa Rica (Alajuela), but we were unable to examine any specimens from this locality. Two female specimens from Panama are listed below, representing a new country record for the species.

Material examined. Holotype (via photograph), male:“MEX: Jalisco, La Manzanilla, VII-10-91, F.A. Noguera ” // “Holotype, Crossomeles acutipennis Chemsak & Noguera ” ( UNAM); one male paratype: MEXICO: Jalisco, Est. Biol. Chamela, July 10-20, 1985, E. Giesbert, Coll.” // “Paratype, Crossomeles acutipennis Chemsak & Noguera ” ( EFGC); one male: “ MEXICO: Chiapas, ‘ El Aguacero’ 16 km W Ocozocoautla, June 28-July 8 1986, E. Giesbert, Coll.” ( EFGC); one male: “ MEXICO: Chiapas, 9 km N Arriaga, June 19 1987, E. Giesbert, coll.” ( EFGC); one female: “ MEXICO, Chiapas, 5 mi E of Ocozocoautla, 16 June 1989, JC Burne ” ( NMNH); two females: “ PANAMA: Panamá Pr., 7-10 km N El Llano, May 14-22, 1993, E. Giesbert, Coll.” ( EFGC).

Figures

FIGURE 3. Crossomeles acutipennis Chemsak & Noguera, 1993, paratype male. a) Dorsal habitus. b) Close-up of pronotum. c) Close-up of head. d) Lateral habitus.

FIGURE 5. Four species of Crossomeles. a) C. acutipennis, paratype male, close-up of head. b) C. aureopilis, paratype male, close-up of head. c) C. copei, holotype male, close-up of head. d) C. oscarcastilloi sp. nov., holotype male, close-up of head. e) C. acutipennis, paratype male, close-up of pronotum. f) C. aureopilis, paratype male, close-up of pronotum. g) C. copei, holotype male, close-up of pronotum. h) C. oscarcastilloi sp. nov., holotype male, close-up of pronotum. i) C. acutipennis, paratype male, close-up of metatibia. j) C. aureopilis, paratype male, close-up of metatibia. k) C. copei, holotype male, close-up of metatibia. l) C. oscarcastilloi sp. nov., holotype male, close-up of metatibia.