160 GENUS DOLERUS. 



4 (1) Eyes oval, the inner orbits not margined. Abdomen without 



membranous spots. Parapsides dilated behind. 



5 (14) Abdomen red from the second segment ; in <J red in centre ; 



legs black. Thorax for the greater part red with the ? , 

 black with the $. 



6 (13) Thorax marked with red. 



7 (8) Scutellum red ; three black marks on mesonotum. Triplicatus.' 



8 (7) Scutellum black. 



9 (10) Base of abdomen and a large space beneath fore wings red. 



Lateritius. 



10 (9) Base of abdomen and mesopleura black. 



11 (12) Side lobes of mesonotum and tibia3 reddish. Eglanteritg. 



12 (11) Side lobes of mesonotum and tibias black. Anticus. 



13 (6) Thorax entirely black. Chappelli. 



14 (17) Abdomen black at base and apex. Thorax entirely black. 



Legs marked with red. 



15 (16) Abdomen red, black at base and apex. Smooth, shining, not 



carinated nor granulated ; all the tarsi black ; the tibia3 in 

 part red. Palustris. 



16 (15) Abdomen with the third, fourth, and part of second and fifth 



segments red, scarcely shining, very finely granulated, 

 keeled in the middle ; the base of four anterior femora and 

 anterior tibise and tarsi entirely red. Dubius. 



17 (30) Abdomen entirely black. 



18 (27) Thorax entirely black; femora and tibiaB more c*r less red. 



19 (24) Posterior legs marked with red ; tegulaa black. 



20 (23) Cerci black ; femora for the greater part black. 



21 (22) Mesonotum smooth, shining, impunctate. Gonagra. 



22 (21) Mesonotum punctured, scarcely shining ; parapsides not dilated 



behind. Puncticollis. 



23 (20) Cerci red ; femora for the greater part red. Liogaster. 



24 (19) Hind legs entirely black. 



25 (19) Tegula3 red ; wings hyaline. Scoticus. 



26 (25) Tegulae black ; wings fuscous at apex. Gessncri. 



27 "(18) Thorax more or less sanguineous ; legs black. 



28 (29) Mesonotum red. Sanguinicollis. 



29 (28) Mesonotum black. Hccmatodis. 



30 (17) Head, thorax, legs and abdomen entirely black or bluish-black. 



31 (34) Middle lobe of mesonotum oval or U-shaped at base. 



32 (33) Transverse radial nervure interstitial. Coracinus. 



33 (32) Transverse radial nervure not interstitial. Anthracinus. 



34 (31) Middle lobe of mesonotum V-shaped at base. 



35 (36) Mesonotum opaque, roughly punctured all over ; cenchri large, 



clear ivory-white. Fissus. 



36 (35) Mesonotum shining, not punctured all over, cenchri of medium 



size. 



37 (42) Vertex without distinct sutures. 



38 (39) Wings infuscated ; antennae distinctly thickened from third 



joint, not attenuated at the apex. Tinctipennis. 



39 (38) Wings hyaline; antenna attenuated at the apex. 



40 (41) Vertex and mesonotum almost glabrous, the puncturation on 



lateral lobes indistinct. Ollongus. 



41 (40) Vertex and mesonotum densely pilose, the puncturation on 



lateral lobes distinct. Megaptera. 



42 (37) Vertex with distinct sutures. 



