698 LIST OF DIPTEBA. 



Group 2. 



Fccm. Corpus mediocre, gracile, fere nudum. Caput subtus 

 sat dense pilosum. Facies apud epistoma convexa. Mystax sat 

 dense setosus. Proboscis sublanceolata. Antennarum articulus 

 lus 2o plus duplo longior ; 3us lanceolatus, lo vix brevior, arista 

 3o multo longior. Thoracis latera setis paucis. Abdomen oblan- 

 ceolatum, alas vix superans, apice compressum nitens Iseve. Pedes 

 sat graciles, breviter spinosi, parce pubescentes. Als longiusculae. 



Radial vein curved near its tip, joining the subcostal at a short 

 distance from the tip of the latter. Cubital forked at very much 

 beyond half its length ; fore fork hardly undulating, curved at its 

 base ; hind fork nearly straight. First and second exteruo-medial 

 veins very slightly undulating ; third slightly curved, forming an 

 obtuse angle with the prasbrachial, joining the fourth rather far from 

 the border. Subanal joining the anal at some distance from the 

 border. 



Asilus Gerion, Walk. 



Group 3. 



Mas. Corpus mediocre, dense hirtum. Caput subtus densis- 

 sime pilosum. Facies convexa. Mystax densissime setosus, anten- 

 nas attingens. Proboscis lanceolata. Antennarum articulus lus2o 

 duplo longior ; 3us lanceolatus, lo paullo longior ; arista 3o brevior. 

 Thoracis latera et scutellum setosa. Abdomen pilis lougis hirtum, 

 abdomen non superans. Sexualia mediocria, hirta. Pedes ro- 

 busti, hirti, setosi. 



Radial vein slightly curved near its tip, joining the subcostal 

 near the tip of the latter. Cubital forked at much beyond half its 

 length ; fore fork nearly straight ; hind fork slightly undulating. 

 First and second externo-medial veins straight; third curved, form- 

 ing a hardly obtuse angle with the praebrachial, which is slightly 

 curved, joining the fourth far from the border. Subanal joining the 

 anal at some little distance from the border. 



Asilus Antiphus, Walk. 



Group 4. 



Fcem. Corpus parvum, tomentosum, non pilosum. Caput 

 subtus pilosum. Facies apud epistoma convexa. Mystax parvus, 

 setis paucis. Proboscis gracilis, linearis. Antennarum articulus 

 lus 2o plus duplo longior; 3us lanceolatus, lo paullo brevior; 

 arista 3o multo longior. Thoracis latera et scutellum parce setosa. 

 Abdomen oblanceolatum, thorace duplo longius, alas vix superans, 

 apice compresso lsevi nitido. Pedes validi, parce spinosi, non 

 hirti. 



