Cryptocephalina

Chamorro-Lacayo, Maria Lourdes & Konstantinov, Alexander S., 2004, Morphology of the prothorax and procoxa in the New World Cryptocephalini (Coleoptera: Chrysomelidae: Cryptocephalinae), Zootaxa 676, pp. 1-46 : 9-10

CRYPTOCEPHALINA

PRONOTUM: Denticles present ( Figs. 15 , 19 , 23 ) or absent on basal margin ( Figs. 33 , 42 ); basal margin convex and mesally truncate over mesoscutellum ( Figs. 9 , 19 , 23 , 33 , 42 ); pronotal punctures absent or distinct throughout, strongly pronounced on all margins.

HYPOMERON: Hypomeron projection cylindrical ( Fig. 13 ); hypomeron without distinct punctures ( Figs. 9, 12 ). PROSTERNUM: Intercoxal prosternal process truncate, bimodal or acutely bimodal; intercoxal prosternal process with caudal M­shaped rim ( Figs. 13 , 20 ); prosternal opening open, when viewd caudally; posterior margin of intercoxal prosternal process concave, never projecting beyond hypomeron ( Fig. 9 ); anterior margin of prosternum uniformly concave or with medial flange; intercoxal width equal to, greater than, or less than width of coxal cavity.

Cryptocephalus: Denticles present on basal margin of pronotum ( Figs. 15 , 19 ); pronotal punctures distinct throughout ( Figs. 10, 12 ). Intercoxal prosternal process acutely bimodal ( Figs. 13 , 20 ); anterior margin of prosternum uniformly concave or with medial flange; intercoxal width equal to or greater than width of coxal cavity ( Figs. 9 , 19 ).

Bassareus: Denticles present on basal margin of pronotum ( Fig. 23 ); pronotal punctures distinct throughout ( Figs. 23, 24 ). Intercoxal prosternal process bimodal (in males intercoxal prosternal process with medial projection) ( Fig. 23 ); anterior margin of prosternum with medial flange (in males with sublateral indentations and lateral projections) ( Fig. 21 ); intercoxal width equal to width of coxal cavity; without pronounced ridge bordering coxal cavity ending as small lateral projections on intercoxal prosternal process.

Triachus: Denticles absent on basal margin of pronotum ( Figs. 40, 42 ); pronotal punctures absent ( Fig. 43 ). Intercoxal prosternal process truncate ( Fig. 40 ). Anterior margin of prosternum uniformly concave ( Fig. 40 ); intercoxal width less than width of coxal cavity.

Diachus: Denticles absent on basal margin of pronotum ( Figs. 31, 33 ); pronotal punctures absent ( Fig. 34 ). Intercoxal prosternal process truncate. Anterior margin of prosternum uniformly concave; intercoxal width less than width of coxal cavity ( Fig. 31 ).

Figures

FIGURES 9 – 15. Cryptocephalus aulicus. 9, Ventral view of prothorax. 10, Anterior view. 11. Ventral view of coxal cavity. 12, Lateral view. 13, Caudal view of intercoxal prosternal process and sternacosta. 14, Proendosternite. 15, Caudal view.

FIGURES 16 – 20. Cryptocephalus aulicus. 16, Dorsal aspect of coxa, trochantin, and endopleuron. 17, Caudal view of lateral projection of coxa. 18, Ventral aspect of coxa, trochantin, and endopleuron. Figures 19 – 20. Cryptocephalus arizonicus. 19, Ventral view of prothorax. 20, Caudal view of intercoxal prosternal process and sternacosta.

FIGURES 21 – 26. Bassareus brunnipes. 21, Ventral view of prothorax. 22, Anterior view. 23, Caudal view. 24, Lateral view. 25, Oblique caudal view and endopleuron. 26, Ventral view of coxal cavity.

FIGURES 31 – 37. Diachus auratus. 31, Ventral view of prothorax. 32, Anterior view. 33, Caudal view. 34, Lateral view. 35, Ventral view of coxal cavity. 36, Oblique caudal view and endopleuron. 37, Caudal view of intercoxal prosternal process and sternacosta.

FIGURES 40 – 45. Triachus vacuus. 40, Ventral view of prothorax. 41, Anterior view. 42, Caudal view. 43, Lateral view. 44, Ventral view of coxa inserted into cavity with attached trochantin and inserted trochanter. 45, Oblique caudal view and endopleuron.