Bryanellocoris, J. A. Slater, 1957

Ban, Teruaki, Szx, Olympus, Cmos, Color & Vhx-, Keyence, 2020, The discovery of the genus Bryanellocoris from Laos, with description of a new species (Heteroptera: Rhyparochromidae), Acta Entomologica Musei Nationalis Pragae 60 (1), pp. 169-172 : 172

Key to species of Bryanellocoris

from the Oriental Region

1 Antennal segments III and IV more than twice as long as segment I; profemur with 4 or 5 spines. ....................... ............................... B. globosus Chen & Ashlock, 1987

– Antennal segments III and IV less than twice as long as segment I; profemur with 2 spines. ................................. 2

2 Base of antennal segment IV without pale band; labial segment III 1.8 times as long as segment I. ...................... ................................. B. philippinensis J. A. Slater, 1965

– Base of antennal segment IV with pale band; labial seg- ment III 0.50 to 0.75 times as long as segment I. ........... 3

3 Apex of carina of humeral angle of pronotum rounded; apical dark spot of corium inside a pale spot. ............... 4

– Apex of carina of humeral angle of pronotum acute; api- cal dark spot of corium without pale spot. .................... 5

4 Head brown; anterior lobe of pronotum brown; each hu- meral area of pronotum without dark spot....................... ................................. B. brevicollis (Motschulsky, 1863)

– Head reddish brown; anterior lobe of pronotum reddish brown; each humeral area of pronotum with dark spot. ............................................. B. orientalis Hidaka, 1962

5 Antennal segment II 1.5 times as long as segment I; length of setae of antennal segment I longer than wid- th of antennal segment I; labium reaching front edge of metacoxae. ................ B. pilosus Chen & Ashlock, 1987 .

– Antennal segment II twice as long as segment I; length of setae of antennal segment I shorter than width of an- tennal segment I; labium reaching front edge of meso- coxae. ................................................................................... 6

6 Antennal segment IV brownish yellow in basal one-fifth and brown in remaining part; ventral surface of meso- thorax matte gray; corial pale spot within apical dark spot absent; profemur with 2 spines; brown annulation of tibiae present. ............................ B. wakaharai sp. nov.

– Antennal segment IV uniformly reddish brown; ventral surface of mesothorax dark reddish brown; corial pale spot within apical dark spot present; profemur usually with 3 spines (sometimes 2 or 4 spines); brown annula- tion of tibiae absent. ............................................................. .......................... B. hebridensis Chen & Ashlock, 1987 .