LIST OF DIPTEKA. 629 



Antennarum articulus lus 2o duplo longior; 3us lanceolatus, lo 



aqualis; arista 3o paullo longior. Thoracis latera et scutel'lum 



parce setosa.^ Abdomen alas paullo superans. Sexualia mediocria. 

 Pedes robusti, birti, spinosi. 



Cubital rein forked at before half its length; fore fork nearly 

 straight, forming at its base a nearly right angle, which emits 

 a branch ; the latter is nearly twice the length of the basal side of 

 the angle ; hind fork slightly curved, approaching the fore fork at 

 each end. First and second externo-medial veins nearly straight ; 

 third slightly curved, forming a slightly obtuse angle with the pras- 

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

 the anal near the border. 



Erax flavo-fasciata, Wied. 



Group 8. 



Fcem. Corpus parce hirtum. Caput subtus densissime pilo- 

 sum. Facies sat convexa. Mystax dense setosus. Proboscis 

 linearis. Antennurum articulus lus 2o duplo longior ; 3us longi- 

 conicus, lo brevior ; arista 3o fere duplo longior. Thoracis latera 

 parce setosa. Abdomen alis longius, triente apicali stylata. 



Cubital vein forked at much beyond half its length ; forks 

 hardly curved, slightly approaching each other at the base and 

 near the tips; fore fork forming at its base a slightly obtuse angle, 

 which emits a branch ; the latter is not longer than the basal side of 

 the angle. First, second and third externo-medial veins almost 

 straight; third forming a nearly right an»le with the preebrachial, 

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

 near the border. 



Erax lascivus, Wied. 



Group 9. 



Fcem. Corpus parce pubescens, non hirtum. Caput subtus 

 densissime pilosum. Facies valde convexa. Proboscis linearis. 

 Antennarum articulus lus 2o plus duplo longior; 3us longicouicus, 

 lo multo brevior; arista 2o triplo longior. Thoracis latera et scu- 

 tellum setis paucis. Abdomen alas superans, triente apicali stylata. 

 Pedes robusti, spinosi, parce hirti. 



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

 curved, slightly converging at each end; fore fork forming at its 

 base an obtuse angle, which emits a branch ; the latter is about as 

 long as the basal side of the angle. First, second and third externo- 

 medial veins nearly straight ; third forming a very slightly obtuse 



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