LIST OF DIPTEBA. 421 



83. DaSYPOGON BRUNNEUS. 



Thorax suhaurarius, nigra vittatus ; abdomen ferrugineum, late- 

 ribus fiiscis, inarginibus JJavis ; pedes fulvi, femoribus 

 tibiisque ■posticis nonnunquam fuscis ; alee limpidee, apicibus 

 marginibusqiie poslicis subcinereis. 



Dasypogon brunneus, Fabr. Macq. Dipt. Exot. i. 2, 34, 4. 

 Philadelphia. Cayenne. 



84. Dasypogon politus. 



Foem. Fulvus ; antennce nigrae ; thorax fusco vittatus ; abdomen 

 scoriaceum ; pedes nigri ; alee dimidio apicali fusece. 



Dasypogon politus, Say, Journ. Acad. Philad. iii. 52, 5. Wied. 

 Auss. Zweijl. i. 405, 63. 



Pennsylvania. Maryland. 



Group 2. 



Corpus mediocre. Caput et thorax pilosa. Caput thorace fere 

 latius. Facies plana. Mystax pilis nonnullis pallidis. Antennarum 

 articulus lus linearis; 2us subrotundus, lo multo hrevior ; 3us 

 arista brevi, lo et 2o conjuuctini multo longior. Abdomen depres- 

 sum. Tibiae anticce calcaribus brevissimis. Alae maculatffi. 



Forks of the discal areolet straight, their base very little 

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

 First, second, third and fourlh exteruo-medial veins nearly straight, 

 remote from each other on the border. Subanal joining the anal on 

 the border. Discal areolet long and narrow. 



85. Dasypogon Amasteis. 

 Dasypogon Araastris, Cat. of Diptera, 2, 362. 



