700 LIST OF DIPTERA. 



gracilis, lanceolata. Antennarum articulus lus 2o plus duple- lon- 

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

 Thoracis latera setis paucissimis. Abdomen fere oblanceolatum, 

 thorace plus duplo longius, alas non superans, apice compressuni 

 attenuatum acuminatum. Pedes graciles, nudi, spinis paucissimis. 



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

 nearly straight. First and second externo-medial veins nearly 

 straight; third hardly curved, forming a very obtuse angle with the 

 praebrachial, joining the fourth very far from the border. Subanal 

 joining the anal near the border. 



Asilus Mucius, Walk. 



Group 8. 



Fcem. Corpus parvum, tomentosum, non hirtum. Caput sub- 

 tus pilosum. Facies plana. Mystax parvus, setis perpaucis. Pro- 

 boscis gracilis, linearis. Antennarum articulus lus 2o plus duplo 

 longior; 3us longiconicus, lo multo brevior; arista 3o fere triplo 

 longior. Thoracis latera et scutellum setis paucis. Abdomen ob- 

 lanceolatum, thorace duplo longius, alas vix superans, apice styla- 

 tum. Pedes validi, spinosi, non hirti. 



Cubital vein forked at rather beyond its middle ; fore fork 

 slightly undulating ; hind fork nearly straight. First and second 

 externo-medial veins nearly straight ; third hardly curved, forming 

 an obtuse an<?le with the prsebraohial, joining the fourth far from 

 the border. Subanal joining the anal near the border. 



Asilus sexmaculatus, Walk. 



Group 9. 



Mas. Corpus mediocre, sat gracile, parce pubescens, non hir- 

 tum. Caput subtus sat dense pilosum. Facies plana, apud epis- 

 toma vix convexa. Mystax parvus, raro setosus. Proboscis gracilis, 

 sublinearis. Antennarum articulus lus 2o plus duplo longior; 3us 

 lanceolatus, lo multo brevior ; arista 3o plus duplo longior. Thoracis 

 latera parce setosa. Abdomen oblanceolatum, thorace plus duplo 

 longius, alas superans. Sexualia parva. Pedes validi, parce setosi, 

 fere nudi. 



Radial vein nearly straight, joining the subcostal near the tip 

 of the latter. Cubital forked at a little beyond half its length ; fore 

 fork hardly curved, forming an obtuse angle at its base; hind fork 

 very slightly curved landward. First and second externo-medial 

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



