152 



LIST OF DIPTERA. 



uiiclulatiDfT veinlet ; subanal joining the anal very near the border. 

 Discal areolet very long and narrow. 



The stojiter body, thicker mystax, shorter wings and some 

 other peculiarities distinguish this sub-group from MegapoUyon. 



Sub-group 2. 



Corpus maximum, setosum, dense pilosum. Caput thorace 

 angustius ; facies nuda, subcimvexa. Mystax setis octa validus 

 apud peristoma. Barba densa. Antennae sat longae ; articulis 1 us 

 2o longior ; 3us longissime fusiformis, lo el 2o conjunctim longior. 

 Thoracis dorsum pubescens, latera sctosa. Abdomen ])Uis dimidio 

 basili obscurum, dense hirtum, apicera versus nitens, nudum aut 

 nudiusculum ; anus spinus armatus. Pedes validi setosi, pilosi ; 

 ungues et onychia magna. 



Microslylum, p., Macq. 



Alegapollyon, JFa/A. Insecta Saundersiana, Pt. 2, 85. 



Forks of the cubital vein nearly straight, their base much 

 nearer than the end of the discal areolet to the tip of the wing. 

 First externo-medial vein much curved forward near its base ; 

 second straight ; third obsolete beyond the discal areolet, or ap- 

 pearing only as the stump of a vein ; fourth proceeding nearly 

 straight to the border, joined to the third by a long slightly undu- 

 lating veinlet, which is nearly parallel to the border of the wing; 

 .subanal joining the anal far from the border. Discal areolet very 

 long and narrow. 



A. Alae non maculatne. 



A. AlcE uigricantes. 



B. Alae nigrae, basi albae. 



C. Ala; fusca. 



A. AlfE costa ferruginea. 



a. Barba /<^rmi/i(r nigra. - 



b. Barha f (I tniiuc fujva. 



B. Alit- costa non ferruginea. 



a. Thorax disco nigro. 



b. Thorax vittis quntuor piceis. 



D. AUc fusca;, venis Havo limbatis. 



E. Ala' fuscoliturata-. 



F. Alffi subferruginea:. 



acutirostris, Lnetv. 

 - Pica, Macq. 



Barbarossa JVied. 

 Serranus, Walk. 



BloBsus, Walk. 

 Saverrio, Walk. 



- venosus, Wied. 

 - gigas, Wied. 



- capensis, If'ied. 



