Hybosispa, Weise, 1910

Sekerka, Lukáš, 2017, Taxonomic changes within Imatidiini and Hybosispini (Coleoptera: Chrysomelidae: Cassidinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2), pp. 351-380 : 377-378

Key to species of Hybosispa

1 Abdominal ventrites bare; antennae short and thick, distal antennomeres as wide as long. Lowland or mid-elevation species (usually below 1000 m) from southern Mexico to southern Brazil. .............................................................. Hybosispa Weise, 1910 ... 2

– Abdominal ventrites densely pubescent; antennae longer and slender, most of distal antennomeres longer than wide. Eight species in the Cordillera in Central America and the Andes from Costa Rica to Bolivia; all species at elevations above 1200 m. ............. ..................................................................................................... Solenispa Weise, 1905

2 Dorsum uniformly black. .............................................................................................. 3

– Dorsum at least partly red. ............................................................................................ 5

3 Legs and antennae dark coloured, pitchy-brown; frons weekly impressed with low and obtuse medial carina reaching only anterior part of vertex. .......................................... 4

– Legs and antennomere I pale coloured, yellowish-brown; frons deeply impressed between eyes with sharp and high mid carina extending to whole width of vertex. Brazil: Rio de Janeiro. ............................................................................ H. claripes ( Pic, 1923)

4 Abdomen black; pronotum parallel-sided in whole length not converging in anterior third. Brazil: Santa Catarina. ............................................................................................ ................................................................................................. H. nitida Uhmann, 1939

– Abdomen reddish-brown; sides of pronotum rounded in anterior third and distinctly converging anteriad. Brazil: Santa Catarina. .................... H. rufiventris Uhmann, 1940

5 At least apical part of elytra black. ................................................................................ 6

– Dorsum uniformly red. .................................................................................................. 9

6 Head black; inner margin of eyes not strongly carinate and projecting anteriad. ......... 7

– Head red; inner margin of eyes forming sharp carina, which is projecting anteriad. ... 8

7 Pronotum 1.6–1.7 times as wide as long with conspicuously flat antero-lateral sides. Brazil: Rio de Janeiro. ........................................................... H. strandi Uhmann, 1933

– Pronotum 1.3–1.4 times as wide as long, not flattened on sides. Bolivia: Cochabamba .. ..................................................................................................... H. macella ( Pic, 1923)

8 Pronotum subrectangular, for most length parallel-sided and tapering anterad only at anterior corners; abdomen and thorax mostly black. Peru: Cuzco. .................................. .................................................................................................... H. bipartita (Pic, 1926)

– Pronotum in anterior third rounded distinctly tapering anterad; ventral side red. Bolivia: La Paz and Peru: Marcapata. ................................................ H. melanura Weise , 19102

9 Smaller species, body length below 4 mm. Central-American species. ..................... 10

– Larger species, length 5.7 mm. Described from ‘Upper Amazons’. ................................ ........................................................................................ H. truncatipennis ( Baly, 1869)

10 Pronotum transverse, 1.4 times as wide as long; distal antennomeres brown. Costa Rica and Panamá. ........................................................................... H. sulciceps ( Baly, 1885)

– Pronotum subquadrate, 1.1 times as wide as long; distal antennomeres black. Mexico: Chiapas. .......................................................................... H. delectabilis ( Staines, 1996)