Ameriphoderes, Clarke, 2015

Clarke, Robin O. S., 2015, Revision of the genus Acyphoderes Audinet-Serville, 1833, with a brief synopsis of the genus Bromiades Thomson, 1864 (Coleoptera, Cerambycidae), Insecta Mundi 2015 (401), pp. 1-92 : 42

Key to the species groups of Ameriphoderes new genus based on males and females

Note. Both A. amoena (Group 2) and A. suavis (Group 1) are problematic as they seem to fall between Groups 1 and 2; but the structure of the prothorax (whether rather trapezoidal or more urn-shaped) is considered the primary character separating these groups.

1. In males prothorax subtype 4A, trapezoidal; widest before middle, prothoracic quotient 2.17-3.30, in females 2.32-2.82 (but see A. amoena ); in males rostrum width/length 2.19-2.46 (except in A. ayalai 3.00); in males width of one inferior lobe of eyes/interocular distance 1.4-1.9; in males antennae reach from metacoxae to urosternite I; in females antennae do not reach metacoxae (except in A. yucateca ); elytra subtypes 4A or 4B; in male lengths of elytra/forebody 0.84-1.17; in females 0.82-1.12; in both sexes length of elytra/width humeri 2.10-2.70 (except in A. suavis 3.1-3.2) and apex of elytra reach from base of urosternite II to basal third of III (except in female A. suavis apical third of III); in both sexes lengths mesosternum/metasternum 0.76- 1.14; in males widths of mesocoxal cavity/base of mesosternal process 2.4-3.1; in females 1.7- 2.5; in males abdomen Type 1 (Fig. 63-66, 68), generally shorter, lengths forebody/abdomen 0.80-0.92 (except in A. acutipennis 0.72), in females 0.70-0.80; in both sexes abdominal process nearly vertical to abdomen; in males hind legs subtype 3A (except in A. suavis Type 1B) ....... ....................................................................................................................................... Group 1

— In males prothorax subtype 4B, urn-shaped, widest from middle to behind middle; in males prothoracic quotient 1.80-1.92 (but see A. amoena 2.21), in females 2.00-2.16 (except in A. amoena 2.39); in males rostrum width/length 2.60-3.30 (except in A. bayanicus 2.29); in males width of one inferior lobe of eyes/interocular distance 2.1-5.3; in males antennae reach urosternites I-II; in females reach urosternite I (except in A. prolixa , only reaching metacoxae); elytra subtype 5A (except in A. amoena subtype 4B); in males lengths of elytra/forebody 1.26- 1.46 (except in A. amoena 1.09); in females 1.16-1.61; in males length of elytra/width humeri 2.87-4.10; in females 3.22-4.06 (except in A. amoena 2.84); in males apex of elytra reach from middle to apex of urosternite III; in females from apical third of III to middle of IV; in both sexes lengths mesosternum/metasternum 0.63-0.76 (except in A. amoena 0.83); in males widths of mesocoxal cavity/base of mesosternal process 2.6-3.8; in females 2.8-4.0 (except in A. prolixa 1.6); in males abdomen Type 2 (Fig. 90, 93, 95, 97), generally longer, lengths forebody/abdomen 0.62-0.81 (except in A. acutipennis 0.72), in females 0.68-0.98; in both sexes abdominal process moderately inclined to abdomen (10-70°). Male hind legs subtype 3B (except in A. amoena Type 1B) .................................................................................................................................. Group 2