66 



4 (11) Wings with a sharply-defined, broad black 



pattern ; third and fourth abdominal 

 segments each with three prominent bullae. 



5 (8) Body and legs entirely black, even the 



abdominal bullse wholly black ; wings 

 with the basal half entirely blackened 

 and with a single band in addition. 



6 (7) Third and fourth abdominal segments with 



the middle bulla encircled by a velvety- 

 black patch, the laleral bulla3 bare and 

 shining, distinct 5 sides of the abdomen 

 with black hairs bullata, Loew. 



7 (0) Third and fourth segments on each side of 



the middle buila with a broad patch of 

 golden pubescence, which entirely covers 

 the lateral bullre, which are therefore not 

 visible ; sides of the last three segments 

 with a fringe of golden hairs attrigera, sp. n. 



8 (5) Body and legs mostly red or yellow ; abdo- 



minal bullte red or yellow ; wings almost 

 entirely hyaline at the base, "with two 

 black baud's on the middle. 



9 (10) Tibiae and tarsi black ; wings rather dark- 



ened at the base ; bulla on the second 

 abdominal segment red, black only towards 

 the fore border Jcroeleri, sp. n. 



10 (9) Tibiaa and tarsi red ; wings entirely hyaline 



at the base ; bulla on second segment 



entirely black neavei, sp. n. 



11 (4) Wings either without any pattern or with 



an ill-defined one in the middle; third 

 and fourth segments each with only a 

 middle bulla. 



12 (13) Wings vitreous, without any pubescence 



towards the middle, with a small, more 

 or less distinct dark band extending to 

 the praefurca ; squamulae with a whitish 

 fringe ; second abdominal segment with a 

 broad yellow barifl ; face without a. dis- 

 tinct lateral keel below, with the middle 

 tubercle not very prominent and grey- 

 dusted bultigera, Aust. 



13 (12) Wings broadly pubescent to the subapical 



and postical cross-veins, in the middle 

 vrith a broad brown spot extending to the 

 middle cross-vein ; squamulas with a dark 

 fringe ; face below with an oblique pro- 

 minent keel on each side and with the 

 tubercle bare, black, very shining pubipennis, sp. n. 



14 (3) Arista bare ; abdominal bullfle but little 



prominent, indistinct ; thorax on the back 

 with dark and grey transverse bauds ; 

 wings hyaline, unspotted erratica, Bezzi. 



15 (2) Abdomen' without distinct bullas. 



1(3 (19) Thorax and abdomen with bright yellow 

 trans verse bands ; bind femora half yellow 

 and half black. 



