Cyrtosoma

Spiessberger, Erich L. & Ivie, Michael A., 2018, Revision of the West Indian Cyrtosoma Perty (Coleoptera: Tenebrionidae: Cnodalonini), with Descriptions of Three New Species, The Coleopterists Bulletin 72 (4), pp. 825-837 : 827-829

KEY TO THE WEST INDIAN SPECIES OF CYRTOSOMA

1. Pronotum and elytra glabrous; dorsal surface of tibiae lacking erect, long setae; metaventrite and first ventrite without post-coxal, pit-like crenulations; genal groove variable .......... 2

1 ′. Pronotum and elytral intervals with sparse, fine setae; dorsal surface of tibiae with erect, long, fine, sparse setae; metaventrite and first ventrite with post-coxal, pit-like crenulations; genal groove long ( Figs. 7, 10 ) ............... 5

complete ( Fig. 11 ); St. Lucia.................... ..................... C. luciae Spiessberger and

Ivie, new species

5. Gena coarsely, deeply punctate ( Fig. 7 ); Guadeloupe........................................... ........... C. lherminierii (Guérin-Méneville)

5 ′. Gena ventrally smooth near eye, impunctate ( Fig. 10 ); Dominica.............. C. dominicae

Spiessberger and Ivie, new species

2. Gena strongly punctate near eye ( Figs. 9, 12 ); elytral striae deep, punctate, interstriae convex and punctate, shiny ( Figs. 3, 6 ) ............... 3

2 ′. Gena impunctate near eye ( Figs. 3, 5 ); elytral striae shallow, impunctate, interstriae flat and nearly impunctate, matte ( Figs. 8, 11 ) ............ 4

3. Body elongate ( Fig. 6 ); genal groove long ( Fig. 12 ); St. Vincent.............................. ........................ C. vincenti Spiessberger and Ivie , new species

3 ′. Body short, laterally rounded ( Fig. 3 ); genal groove short ( Fig. 9 ); Grenada.................. ......................... C. grenadense Marcuzzi

4. Frons and clypeus distinctly punctate, punctures separated by less than a diameter; prosternal process bearing sparse, long, fine, erect, golden setae; genal groove short ( Fig. 8 ); Martinique................. C. martiniquense Marcuzzi

4 ′. Frons and clypeus very finely punctate, punctures separated by more than a diameter; prosternal process glabrous; genal groove

Figures

Figs. 7–12. Cyrtosoma species, head and prosternum, ventral view. 7) C. lherminierii; 8) C. martiniquense; 9) C. grenadense; 10) C. dominicae; 11) C. luciae; 12) C. vincenti.

Figs. 1–6. Cyrtosoma species, dorsal habitus. 1) C. lherminierii; 2) C. martiniquense; 3) C. grenadense; 4) C. dominicae; 5) C. luciae; 6) C. vincenti.