Chnoodes Chevrolat

Krüger, Thaysa C., Castro-Guedes, Camila F. & Almeida, Lúcia M., 2016, Two new species of Chnoodes Chevrolat (Coleoptera: Coccinellidae) from Brazil, Zootaxa 4078 (1), pp. 269-283 : 271

Key to species of Chnoodes Chevrolat from Brazil

1. Pronotum and elytra yellowish brown or black, with spots..................................................... 2

1’. Dorsal color pattern different............................................................................ 3

2(1). Pronotum and elytra yellowish brown, with a quadrangular black spot in the middle of the elytra and two on the lateral margin of each elytron, one elongated spot below the humeral callus and another transverse spot on the apex ( Fig. 1 )...................................................................................... Chnoodes brasiliensis Korschefsky

2’. Elytra yellowish brown, with four black spots: a central fused pentagonal spot, and three spots on the lateral margin of each elytron (one triangular spot on the humeral callus, one rectangular in the middle, and one small triangular on the apex) ( Fig. 4 )............................................................................. Chnoodes pentagona Crotch

3(1’). Pronotum and elytra dark brown or black, without spots....................................................... 4

3’. Pronotum and elytra dark brown or black, with yellowish border................................................ 5

4(3). Center disc bare ( Fig. 3 ).................................................... Chnoodes discomaculata (Crotch)

4’. Center disc with pubescence; pronotum and elytra metallic dark brownish, anterior pronotal border castaneous ( Fig. 6 )....................................................................................... Chnoodes tarsalis Weise

5(3’). Elytra black with or without spots......................................................................... 6

5’. Elytra reddish with or without spots....................................................................... 7

6(5). Elytra with a yellowish border and two yellowish areas below the callus and near the apex ( Fig. 7 ).................................................................................................... Chnoodes machadoi sp.nov.

6’. Elytra with one elongated yellowish spot on the disc ( Fig. 8 ).......................... Chnoodes unimaculata sp.nov.

7(5’). Pronotum with two basal black spots, sometimes fused; each elytron with three black spots: two rounded in the basal third and one elongated transverse spot on the apex ( Fig. 2 ).................................... Chnoodes chaudoiri Mulsant

7’. Pronotum with one black spot, elytra without spots ( Fig. 5 )....................... Chnoodes pseudosanguinea Brèthes

Figures

FIGURE 1. Chnoodes brasiliensis Korschefsky, 1935. A – D. habitus; A. dorsal; B. ventral; C. frontal view; D. lateral; E – G. male genitalia; E. tegmen, ventral; F. tegmen, lateral; G. sipho lateral view; H – I. female genitalia; H. coxites; I. spermatheca.

FIGURE 2. Chnoodes chaudoiri Mulsant, 1850. A – D. habitus; A. dorsal; B. ventral; C. frontal view; D. lateral; E – G. male genitalia; E. tegmen, ventral; F. tegmen, lateral; G. sipho lateral view. H – I. female genitalia; H. coxites; I. spermatheca.

FIGURE 3. Chnoodes discomaculata (Crotch, 1874). A – D. habitus; A dorsal; B. ventral; C. frontal view; D. lateral. E – G. Male genitalia: E. tegmen, ventral; F. tegmen, lateral; G. sipho lateral view. H – I. female genitalia; H. coxites; I. spermatheca.

FIGURE 4. Chnoodes pentagona Crotch, 1874. A – D. habitus; A. dorsal; B. ventral; C. frontal view; D. lateral. E – G. male genitalia: E. tegmen, ventral; F. tegmen, lateral; G. sipho lateral view. H – I. female genitalia; H. coxites; I. spermatheca.

FIGURE 5. Chnoodes pseudosanguinea Brèthes, 1925. A – D. Habitus; A. dorsal; B. ventral; C. frontal view; D. lateral. E – G. Male genitalia: E. tegmen, ventral; F. tegmen, lateral; G. sipho lateral view. H – I. female genitalia; H. coxites; I. spermatheca.

FIGURE 6. Chnoodes tarsalis Weise, 1904. A – D. habitus: A. dorsal; B. ventral; C. frontal view; D. lateral. E – G. male genitalia: E. tegmen, ventral; F. tegmen, lateral; G. sipho lateral view. H – I. female genitalia; H. coxites; I. spermatheca.

FIGURE 7. Chnoodes machadoi sp. nov. Paratype male. A – D. habitus; A. dorsal; B. ventral; C. frontal view; D. lateral; E – G. male genitalia: E. tegmen, ventral; F. tegmen, lateral; G. sipho lateral view. H – I. female genitalia; H. coxites; I. spermatheca.

FIGURE 8. Chnoodes unimaculata sp. nov. holotype female. A – D. habitus; A. dorsal; B. ventral; C. frontal view; D. lateral. E – F. female genitalia; E. coxites; F. spermatheca.