LIST OF DIPTEEA. 731 



Group 2. 



Corpus magnum, parce hirtum. Caput subtus dense pilosum- 

 Facies vix convexa. Mystax sat dense setosus. Proboscis brevisi 

 crassa, lanceolata. Antennarum articulus lus 2o duplo longior ; 

 3us longiconicus, lo aequalis ; arista 2o duplo longior. Thorax 

 utrinque et postice setosus. Abdomen depression, alas non 

 superans, thorax vix duplo longius. Pedes validi, spinosi, parce 

 hirti. Mas. — Abdomen lineare. Sexualia parva, arcuata. Fcem. — 

 Abdomen oblanceolatum, apice subcompressum. 



Cubital vein forked at very much beyond half its length ; forks 

 slightly curved. First externo-medial much curved near the base ; 

 second straight ; third slightly curved, forming a slightly obtuse 

 angle with the praebiachial, joining the fourth very far from the 

 border. Subanal joining the anal very far from the border. 



Asilus Pelago, Walk. 



Group 3. 



Mas. — Corpus longiusculum, hirtum. Caput subtus deusis- 

 sime pilosum. Facies convexa. Mystax sat dense setosus. Pro- 

 boscis lanceolata. Antennarum articulus lus 2o plus duplo longior ; 

 3us lo paullo brevior ; arista 3o vix brevior. Thoracis latera et 

 scutellum parce setosa. Abdomen subliueare, thorace plus duplo 

 longius, alas longe superans. Sexualia parva. Pedes robusti, 

 spinosi, hirti. Alae breviusculae. 



Kadiul as usual. Cubital vein forked at very much beyond half 

 its length ; forks nearly straight. First and second externo-medial 

 veins nearly straight; third curved, forming a slightly obtuse angle 

 with the praebrachial, joining the fourth close to the border. Sub- 

 anal joining the anal close to the border. 



Asilus Blasio, Walk. 



Group 4. 



Corpus magnum, aut mediocre. Caput subtus densissime 

 pilosum. Facies convexa. Mystax densissime setosus. Proboscis 

 lanceolata. Antennarum articulus lus 2o duplo longior; 3us lan- 

 ceolatus, lo aequalis; arista 3o paullo brevior. Thorax pubescens ; 

 latera et scutellum parce setosa. Abdomen longi-oblanceolatura. 

 Pedes robusti, spinosi, parce hirti. Mas. — Abdomen alas paullo 

 superans. Sexualia parva ; forceps brevissimus. Alee apud costam 

 subdilatatse. Fcem. — Abdomen alas non superans, apice obtusum, 

 nou compressum nee attenuatum. 



