78 SYKPHIDJE. 



broad dark transverse band behind 

 the suture ; fourth abdominal seg- 

 ment with three whitish transverse 

 bands; second abdominal segment 

 of the female with an entire yellow 



band myiatropinus, Spei.s. 



C (5) Hind femora wholly black ; thorax 

 without transverse bands, in the 

 male with four indistinct longitu- 

 dinal black stripes ; fourth abdo- 

 minal segment without the central 

 whitish band ; yellow band on the 

 second abdominal segment in the 

 female broadly interrupted gymnops, sp. n. 



7 (2) Eyes clothed with long hairs above, 



more or less bare on the inferior 

 half; third antenual joint elongate, 

 yellowish below ; anteunal tubercle 

 and a broad facial stripe shining 

 black ; hind femora not thickened ; 

 hind tarsi yellow with black tips. 



8 (9) Front tarsi black, the same colour also 



predominating in the legs generally ; 

 yellow bands on the abdomen small, 

 the first usually interrupted in the 

 middle in both sexes ; abdomen of 

 the male with strong aeneous re- 

 flexions euzonus andersoni, var. n, 



9 (8) Front tarsi yellow, at least broadly 



yellow towards the base ; abdomen 

 with broad yellow bands, the first of 

 which is not interrupted in the 

 middle ; abdomen of the male with- 

 out seneous reflexions mdanops, Karsch. 



10 (1) Face not produced, almost rounded 



below, or very little produced ; 

 antennal tubercle less prominent ; 

 third antennal joint yellow, at most 

 with a dark upper border ; bla:k 

 spots on the eyes usually not coales- 

 cent ; eyes always hairy, those of the 

 male usually united for a long dis- 

 tance ; thorax with very distinct 

 stripes on the back. 



11 (14) Face adorned with three black stripes, 



the middle tubercle being black; 

 peristoma very narrow, not promi- 

 nent at all ; scutellum entirely pale- 

 haired ; pterostigma with a single 

 brown spot. 



12 (13) Wing-veins black towards the end; 



abdomen of the female with broad 

 basal yellow spots on the sides; white 

 bands on the abdomen smaller and 

 less striking ; black peristomal stripe 

 broad; venter black or black-spotted. quinqueUncaius, Fabr. 



