Se ee sc whl rt 
Mr. A. H. Haliday’s Descriptions of Dipterous Insects. 367 
ORTHOCHILE. Meig. IV, 103, CXXXI. 
nigrocerulea. Meig. IV, 103, 1. 
Latr. Gen. Crust., &c. IV, 289. 
Long. corp. 1+. 
q I found both sexes near Bexley in June.] 
References to the Figures. Tas. XV. 
1. Orphnephila devia 2. 
2. Side view of the body. 
3. A wing. 
4. Forefoot. 
5. Hind tarsus. 
6. The head ; the antenne being removed, except the basal joint. 
7. The antenna without the radical joint. 
8and9, Thetrophi. 
10. Hind metatarsus of Plectropus. 
. lland 12. Macherium Maritime. 
(a. antenna. 
e. clypeus. 
b. haustellum. 
| g. labrum. 
d m. mandible. 
| n. maxilla. 
o. Tongue. 
ff. labella. 
Le. Maxillary palpus. 
