AET. 7 REVISION OF COCCOPHAGUS — COMPEEE 17 



44. Species marked with some black or brownish 47 



Species completely pale yellow, without any dark markings. Marginal fringe 



long 45 



45. Spur of middle tibia subequal in length to the basitarsus. Basitarsus of 



middle legs as long as the three succeeding joints combined 46 



Tibial spur slightly longer than the basitarsus. Basitarsus of middle legs 

 as long as the succeeding two joints combined. Funicle joints plainly 

 much less than twice as long as wide. Face, cheeks, and venter of thorax 

 white. (Africa) 37. lutescens, new species. 



46. Funicle joints a trifle more than twice as long as wide. (Wisconsin.) 



38. perflavus Girault. 



47. Fore wings hyaline, or with a cloud beneath the stigmal vein, or with 



normal infuscation. Cilia of fore wings normal 48 



Fore wings with a large, elongated, central infuscation with fuscous cilia. 

 On the hyaline area at apex of wing the cilia are transparent in balsam 

 and probably refractive in tag-mounts. Pedicel about as long as the first 

 funicle joint. All funicle joints subequal, each a trifle longer than wide. 

 Club as long as the funicle. A small species, silvery white to yellow with 

 blackish markings. (Australia) 39. argenteus Girault. 



48. Second funicle joint not the longest, or if the longest, not more than twice 



as long as wide 49 



Second funicle joint slightly longer than the first or third and about two 

 and one-half times as long as wide. First funicle joint a trifle longer 

 than the pedicel. First and third funicle joints subequal and each 

 about two and one-fourth times as long as wide. Fore wings relatively 

 slender and smaller than normal. A small species mostly orange yellow ; 

 abdomen black with a broad silvery cross band. (Australia.) 



40. argentifascia Girault. 



49. Body not marked on either side with a longitudinal dark brown stripe 51 



Body yellowish, marked on either side with a longitudinal, dark brown 



stripe continuous from pronotum to apex of abdomen 50 



50. Fore wings with a small infuscated cloud beneath the stigmal vein. Ovi- 



positor shorter than in the following species, extending from middle of 



abdomen to the apex. (Africa) 41. bivittatus, new species. 



Fore wings without a cloud beneath the stigmal vein. Ovipositor extend- 

 ing almost the entire length of the abdomen. (Ceylon, China.) 



42. longifasciatus Howard. 



51. Stigmal vein normal or if with a long slender neck the postmarginal vein 



is developed 52 



Stigmal vein with an abnormally long slender neck; postmarginal vein 

 absent. Predominantly black with only the basal one-third of the abdo- 

 men yellow in striking contrast. (Maryland) __43. cinguliventris Girault. 



52. Thorax yellow or predominantly yellow with some brownish 53 



Thorax predominantly blackish, parapsides and scutellum more or less 



ferruginous. Head mostly pearly white. Basal one-third or so of the 

 abdomen pale yellow to white, apical one-fourth yellow with dark spots, 

 intermediate part fuscous. Middle and hind coxae black, remainder 

 of legs white to pale yellow. First funicle joint about one-half as long 

 as the second, second and third plainly longer than wide. (Africa.) 



44. margaritatus, new species. 



2610—31 2 



