LIST OF DIPTERA. 285 



B. Corpus fuscum. 



A. Abdomen flavo maculatum. - crucians, Wied. 



B. Abdomen albido maculatum. - tristis, Fabr. 



C. Corpus glaucum. afflictus, Wied. 



D. Corpus rlavum. 



A. Alee fuscae, limpido notatae. - - - molestus, Wied. 



B. Alse limpidae, fusco notatae. 



a. Alae fascia fusca. -----, costatus, Fabr. 



b. Alae apice fuscae. - varipes, Walk. 



37. Chrysops tardus. 



Niger; antennae fuscescentes ; thorax luteo quadrivittatus ; abdo- 

 men incisuris, maculis quadratis et trigonis luteis ; alee nigree, 

 maculis tribus apiceque sublimpidis. 



Chrysops tardus, Wied. Auss. Zweifl. i. 577, 8. 

 Brazil. 



38. Chrysops lugubris. 



Fcem. Nigro-fuscus ; antennce pedesque nigra; alee f usees, ma- 

 culis pallidis. 



Chrysops lugubris, Macq. Dipt. Exot. SuppL 1, 44, 14, pi. 4, f. 11. 

 Brazil. 



39. Chrysops incisus. 



Foem. Niger; antennce basi apiceque fulvce ; abdomen maculis 

 dorsalibus later alibusque flams ; alee basi, costa fasciaque 

 fuscis. 



Chrysops incisus, Macq. Dipt. Exot. SuppL 1, 44, 15, pi. 4, f. 12. 

 New Grenada. Temperate Region. 



40. Chrysops fulviceps. 



Fcem. Niger; caput fulmim; palpi testacei ; antennce ferru- 

 ginece, basi fulvce, apice nigrce ; abdominis segmenta margini- 

 bus posticis testaceis ; pedes fulvi, tar sis fuscis ; alee subcinerece, 

 vitta costali fasciaque lata postice furcata nigro-fuscis. 



