genera, Gressitt, 1946

Chamorro-Lacayo, Maria & Konstantinov, Alexander, 2009, Synopsis of warty leaf beetle genera of the world (Coleoptera, Chrysomelidae, Cryptocephalinae, Chlamisini), ZooKeys 8 (8), pp. 63-88 : 84-85

publication ID	https://doi.org/ 10.3897/zookeys.8.90
DOI	https://doi.org/10.5281/zenodo.3792378
persistent identifier	https://treatment.plazi.org/id/552287F6-FFA9-FFB1-FF53-8D04FBC76B1E
treatment provided by	Plazi
scientific name	genera
status

Treatment

Key to genera View in CoL

1 Head with large laminar projection in occipital region. ( Figs. 6 A, B, D View Figure 6 )...... ............................. Kakita Chamorro-Lacayo & Konstantinov , new name

– Head without large laminar projection in occipital region .......................... 2

2(1) Legs atypical; femora and tibiae flattened; tarsi reduced, retractile, able to fit into groove along apex of tibia ( Fig. 3 B View Figure 3 ) ... Carcinobaena Lacordaire, 1848

– Legs normal and not as above ( Fig. 3 E, H View Figure 3 ) ................................................ 3

3(1) Prosternum nearly rectangular, with posterior margin slightly narrower than anterior margin ( Fig. 3 H View Figure 3 ). Pronotal and elytral tubercules reduced.............. .................................................................... Melittochlamys Monrós, 1948

– Prosternum varying in shape, triangular, or angulate between mesocoxae, but never rectangular, with posterior margin much narrower than anterior margin ( Figs. 3 A, I View Figure 3 ). Pronotal and elytral tubercules well developed ................ 4

4(3) Head with vertex longitudinally impressed. Tarsal claws simple. Body about 10 mm long and longer, bright metallic color. Pronotal and elytral tubercules pronounced ................................................................. Fulcidax Voet, 1806

– Head with vertex entire or convex. Tarsal claws usually appendiculate, if simple, see Exema View in CoL . Body less than 10 mm long ............................................... 5

5(4) Prosternal process distally widened between midcoxae ( Fig. 3 D View Figure 3 ). Metascutellum broadly exposed ( Fig. 1 E View Figure 1 ) ........................ Diplacaspis Jacobson, 1924 View in CoL

– Sides of prosternal process convergent or serrate, if slightly widened between mesocoxae, then metascutellum not exposed ( Fig. 1 A View Figure 1 ) .............................. 6

6(5) Pronotum with 6 distinct, small, sharp, longitudinal carinae that converge medially near posterior margin (fan). Small size, elongate, uniform hue, generally black ( Figs. 1 A, B View Figure 1 ) .............................. Aulacochlamys Monrós, 1952

– Pronotum with or without bumps, but never with 6 longitudinal carinae that converge medially near posterior margin..................................................... 7

7(6) Head not completely retracted into the prothorax; mandibles in males larger than in females ( Fig. 4 K, L View Figure 4 ). Prosternum strongly and abruptly constricted beyond anterior margin; prosternal process more than ¾ as long as prosternum. ( Figs. 3 K, L View Figure 3 ) ................................. Pseudochlamys Lacordaire, 1848 View in CoL

– Head completely retracted into prothorax; mandibles in males as large as in females ( Fig. 4 A View Figure 4 ). Prosternum gradually constricted at about 2/3 of its length ......................................................................................................... 8

8(7) Metasternum anteriorly elongated into deltoid projection ( Fig. 3 G View Figure 3 ). Antennae serrate beyond antennomere 5 ...................... Hymetes Lacordaire, 1848

– Metasternum anteriorly concave with two denticles on sides of concavity ( Fig. 3 B View Figure 3 ). ................................................................................................... 9

9(8) Body usually metallic in color. Frons on canthus of eye usually with yellow spots, or if without yellow spots, then elytron with two velvety spots. Male ejaculatory guide asymmetrical, with sheath ( Fig. 7 A View Figure 7 ).................................. ........................................................................ Neochlamisus Karren, 1972 View in CoL

– Body usually not metallic in color. Frons on canthus of eye usually without yellow spots (if face entirely or partly yellow, with yellow area extending onto canthus, elytra without velvety spots). Male ejaculatory guide symmetrical, without sheath ( Fig. 7 B View Figure 7 ) .......................................................................... 10

10(9) Males without spines or spinulae on first ventrite. Fifth antennomere nearly as large as 6 th. Sutural serration of elytra usually incomplete (suture entire immediately following mesoscutellum) ( Fig. 1 D View Figure 1 ). Prosternum posteriorly pointed (narrowed), posteriorly much narrower than anterior margin........... ....................................................................... Chlamisus Rafinesque, 1815 View in CoL

– Males with spines or spinulae on first ventrite. Fifth antennomere much smaller than 6 th. Sutural serration of elytra complete ( Fig. 1 F View Figure 1 ). Pronotum without longitudinal carinae................................. Exema Lacordaire, 1848 View in CoL