LIST OF DIPTERA. 645 



curved, forming- an almost right angle with the praebrachial, joining 

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

 near the border. 



Eras robustus, Walk. 



Group 3. 



Caput subtus densissime pilosum. Facies valde convexa. 

 Mystax densissime setosus. Proboscis linearis. Thorax parce hir- 

 tus, lateiibus scutelloque subsetosis. Pedes validi, parce spiuosi ; 

 femora subtus dense et bieviter spinosa. 



Radial vein almost straight, joining the subcostal very far from 

 the tip of the latter. Cubital vein forked at beyond half its length ; 

 fork very slightly curved, slightly converging towards each end; 

 fore fork joining the subcostal close to the tip of the latter, forming 

 at its base a slightly obtuse angle, which emits a branch ; the latter 

 is nearly twice the length of the basal side of the angle. First and 

 second externo-medial veins nearly straight ; third slightly curved, 

 forming an almost right angle with the praebrachial, joining the 

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

 border. 



Erax Marcinus, Walk. 



Group 4. 



Mas. Corpus magnum, hirtum. Caput subtus densissime 

 pilosum. Facies convexa. Mystax densissime setosus, fere ad an- 

 tennas asoendens. Proboscis lanceolata. Abdomen subliueare, alas 

 vix superans. Sexualia magna, lamellis dual»us cochleariformibus ; 

 forceps maximus. Pedes robusti, hirti, spinosi. 



Male. Radial vein as usual. Cubital vein forked at very 

 much beyond half its length ; forks undulating, nearer each other 

 in the middle than towards each end ; fore fork not angular nor 

 emitting a branch. First externo-medial vein much curved at its 

 base ; second straight ; third curved, forming an obtuse angle with 

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

 joining the anal close to the border. 



Erax Leon, Walk. 



83. Erax inappendiculatus. 



Mas. Ater ; thorax cinereus, nigro vittatus ; abdominis latera 

 albida ; segmenta dun apicalia alba ; tibice rufa, apice nigra ; 

 aim fusca, subdilatatce, vena cubitalis furca antica ramulum 

 non rejiciens. 



Erax inappendiculatus, Macq. Dipt. Exot. i. 2, 119, 29. 



