24 



SYKPI1I.IKE. 



wholly pale-haired ; sides of face strongly 

 shining 1 ; tarsi entirely yellow, the hind 

 pair only a little infuscated at the end ; 

 abdomen narrow, not broader than the 

 thorax, with the first yellow band in the 

 male not interrupted ; eyes of male 

 touching along | mm. only ; length about 

 8 ram minor, sp. n. 



14 (I) Face with a median black stripe, or at least 



with a quadrate or semicircular black 

 spot on the upper front edge of the buccal 

 cavity ; the face is very strongly and 

 conically produced, being very prominent 

 below and having the anterior edges of 

 the buccal cavity perpendicular or even 

 projecting forwards ; peristoma broader, 

 wholl}' yellow ; frons flattened, without 

 prominent tubercle; antennae more or 

 less distant at the base and often very 

 remote from each other, with the first 

 joint often elongate and the third black, 

 more or less yellowish beneath ; proboscis 

 long or very long ; sides of thorax and 

 pleurae not or indistinctly yellow ; first 

 yellow abdominal band interrupted in the 

 middle (ms/rrtto-group). 



15 (16) Facial tubercle carinilorm as in the pre- 



ceding group; first antennal joint not 

 elongate ; a semicircular black' mark on 

 . the upper edge of the buccal cavity ; scu- 

 telium black-haired ; wings very long 

 and fuscous; first yellow band inter- 

 rupted ; black bands broad and four in 

 number; lateral borders of the third, 

 fourth, and fifth abdominal segments 

 black ; proboscis short anwena, A list. 



16 (17) .Facial tubercle broad and rounded, not 



cariniform ; face with a broad black oral 

 spot or abroad stripe ; first antennal joint 

 elongate ; proboscis long. 



17 (18) Face with only a quadrate black spot on 



oral edge, moderately prominent, whitish 

 on the sides ; first antennal joint twice 

 as long as the second ; scutellnm at the 

 base with yellow hairs; black abdominal 

 bands very narrow, in the male only two 

 or three, in the female three, the lateral 

 borders without a black stripe ; species 

 of smaller size and with very short 



wings foiii, Bezzj, 



IS (17) Face with a broad median black stripe, 

 which always covers the median tubercle, 

 reaching sometimes the base of the an- 

 tennae, yellowish on the sides, more pro- 

 duced below ; black bands broader and 

 four in number ; species of greater size 

 and long- winged, 



