Mr. A. H. Haliday's Descriptions of Dipteroun Insects. 367 



ORTHOCHILE. Meig. IV, 103, CXXXI. 

 1. nigroccerulea. Meig. IV, 103, 1. 



Latr. Gen. Crust., &c. IV, 289. 



Long. Corp. Ij. 



^ I found both sexes near Bexley in June.] 



1. 

 2. 

 3. 

 4. 

 5. 

 6. 

 7. 



References to the Figures. Tab. XV. 



Orphnephila devia $ . 

 Side view of the body. 

 A wing. 

 Forefoot. 

 Hind tarsus. 



The head ; the antenna being removed, except the basal joint. 

 The antenna without the radical joint. 

 8 and 9. Thetrophi. 

 10. Hind metatarsus of P/ectropus. 

 11 and 12. Machcerium Maritimce. 

 'a. antenna. 

 e. cbjpeus. 

 h. haustellum. 

 y. lahrum. 

 «( m. mandible, 

 n. maxilla, 

 o. Tongue. 

 f lahella. 

 c. Maxillary palpus. 



