Coleopterocoris Hungerford, 1942

Longo, Roberta De Sá, Ribeiro, José Ricardo Inacio & Nessimian, Jorge Luiz, 2005, A new species of Coleopterocoris Hungerford from Southeastern Brazil, with notes on C. hungerfordi De Carlo and C. kleerekoperi Hungerford (Hemiptera: Heteroptera: Potamocoridae), Zootaxa 1016, pp. 39-47 : 45-46

Key to species of Coleopterocoris Hungerford

1a. Head and pronotum surfaces with numerous thin setae; eyes projected laterally ( Fig. 9); forefemora cylindrical, not dilated ( Fig. 13) .............................................. ................................. C. hungerfordi De Carlo (Rio de Janeiro, São Paulo, Paraná)

1b. Head and pronotum surfaces smooth, with very few thin setae; eyes not projected laterally ( Fig. 3); forefemora dilated and flattened ( Fig. 8).................................... 2

2a (1b). Hemelytra with lateral black stripes and spots, symmetrically arranged ................ ......................................................................... C. plaumanni De Carlo (São Paulo)

2b. Hemelytra without black stripes and spots ............................................................ 3

3a (2b). Interocular region and pronotum with peculiar spots almost pink; body length varying from 2.9 to 3.0 mm; female interocular width about 2.2 times eye width. ............................................................................. C. usingeri De Carlo (São Paulo)

3b. Interocular region and pronotum without peculiar spots; body length less than 2.9 mm; female interocular width more than three times eye width ........................... 4

4a (3b). Interocular width from 3.7 to 4.2 times eye width; parameres with same width at all extension; basal plate with rounded apex ( Figs. 5­6) ......................................... ........................................................ C. nelsoni Longo, Ribeiro et Nessimian , n. sp.

4b. Interocular width varying from 2.7 to 2.8 times eye width; parameres with constriction on the apex; basal plate with subacute apex ............................................... .............................. C. kleerekoperi Hungerford (Mato Grosso, Rio Grande do Sul)