LIST OF DIPTEEA. 697 



£ Abdomen fnlvum, basi piceum, apice ni- 

 grum. - Leouides, Walk. 

 c. Mystax totus pallidus. 



a. Pedes nigri. 



i. Alse subflavescentes, apice infumata?. 



carbonarius, Wied. 



ii. Alse flavescentes. - macularis, Wied. 



iii. Ala? sublimpidae, apice cinereae. Tlierimachus, Walk. 



b. Pedes uigri, tibiis fulvis. - - longiusculus, Walk. 



c. Femora supra nigra. 



i. Alae flavescentes. - clavatus, Macq. 



ii. Alae limpidae, apice cinerea. - - tennis, Wied. 



d. Femora nigro vittata. 



i. Thorax cinereus, nigro vittatus. - mellipes, Wied. 

 ii. Thorax fuscus, fulvo vittatus. - - Mucius, Walk. 



e. Femora apice nigra. 



i. Alae subflavescentes. - - - - Hilarii, Macq. 

 ii. Alee subciuerere. - 6-maculatus, Walk. 



f. Femora apice fusca. - lutipes, Wied. 



g. Femora tota pallida. 



i. Alse flavidae, apice fuscanae. - - Colombia?, Macq. 

 ii. Alae fulvae. ... - Calatinus, Walk. 



Group 1. 



Corpus mediocre, metallicum, hirtum. Caput subtus densis- 

 sime pilosum. Facies plaua. Mystax parvus, setis paucis. Pro- 

 boscis lanceolata, Antennaram articulus lus 2o duplo longior ; 

 3us lanceolatus, lo paullo longior; arista 3o brevior. Thoracis 

 latera et scutellum setosa. Abdomen basi pilosum. Pedes hirti, 

 vix spinosi ; tarsi crassi, metatarsis subdilatatis ; tibiae anteriores 

 ciliatae. AI33 abdomen superans. Mas. — Abdomen sublineare. 

 Sexualia minima. Fam. — Abdomen oblanceolatum, apice sub- 

 compressum. 



Radial vein joining the subcostal at very far from the tip of the 

 latter. Cubital forked at very little beyond half its leugtb ; forks 

 straight, parallel, converging at their base, diverging at their tips. 

 First and second externo-medial veins nearly straight ; third hardly 

 curved, forming an obtuse angle with the praebrachial, joining the 

 fourth extremely far from the border. Subanal joiniug the anal 

 far from the border. 



Asilus iopterus, Wied. 



