118 LIST OF DIPTERA. 



Dilophus tridentatus, n. s., fern. Niger, abdomine nigro-piceo, 

 tarsis et pedibus anticis piceis, tibiis anticis tridentatis, alls lim- 

 pidis. 



Body black, shining : eyes and feelers also black : abdomen 

 dark piceous : legs black ; feet and fore legs piceous ; each fore 

 shank armed with three double teeth : wings colourless ; a pale 

 brown line along the fore border from the base of the wing to the 

 brand, which is somewhat darker ; fore border veins tawny ; the 

 other veins gyellow. Length of the body 2 lines ; of the wings 4 

 lines. 



a. Tripoli. 



Dilophus thoracicus, Guer. Icon. Regn. Anim. Ins. pi. 92, /. 7. 

 a. Monte Video. Presented by C. Darwin, Esq. 



Bibio, Geoffroy. 



Bibio hortulanus, Geoff. Ins. ii. 571, 3. Latr. Hist. Nat. Cr. xiv. 

 294. Gen. Crust, iv. 266. Cons. Gen. 442. Meig. Dipt. i. 

 310, 1. Macq. Hist. Nat. Dipt. i. 178, 1. Gim. Bull. Soc. 

 Imp. Nat. Mosc. 1846, xix. 2, 75, 1. Blanch. Hist. Nat. An. 

 Art. iii. 576, pi. 1, /. 6, 7. Bouche, Nat. Ins. 42, 24. Tipula 

 hortulana, Linn. Syst. Nat. ii. 977, 46. Faun. Suec. 1770. 

 Gmel. Ed. Syst. Nat. v. 2825, 46. Fabr. Sp. Ins. ii. 409, 50. 

 Mant. Ins. ii. 327, 62. Ent. Syst. iv. 248, 72. Berk. Syn. 

 Nat. Hist. i. 162. Stew. El. Nat. Hist. ii. 353. Turt. iii. 593. 

 Hirtea hortulana, Fabr. Ent. Syst. Suppl. 551, 2. Syst. Anil. 

 52, 4. Meig. Klass. Zweif. i. 108, 1. Schceff. Icon. t. 104, 

 /. 8—11. Schell. Gen. Mouch. t. 39,/. 1, 2. Schrank. Faun. 

 Boic. iii. 2334. Ins. Austr. 876. Pullata citrius, Harris, Ex. 

 77, pi. 22, /. 5, 6. 



a. England. 



b. France. 



Bibio Marci, Latr. Gen. Crust, iv. 266. Meig. Dipt. i. 311, 2. 

 Macq. Hist. Nat. Dipt. i. 178, 4, pi. 4, /. 19. Gim. Bull. 

 Soc. Imp. Nat. Mosc. 1846, xix. 2, 75, 2. Tipula Marci, 

 Linn. Syst. Nat. ii. 976, 38. Faun. Suec. 1765. Gmel. Ed. 

 Syst. Nat. v. 2822, 38. Deg. Ins. vi. 160, 33. Stew. El. 

 Nat. Hist. ii. 252. Turt. iii. 593. Reaum. Ins. v. pi. 7. 

 Geoff. Ins. ii. 570, 2. Schceff. Icon. t. 15, /. 1, 2. Panz. 

 Faun. Germ. xcv. 20. Schrank. Faun. Boic. iii. 2335. Tipula 

 febrilis, Schrank. Ins. Austr. i. 108, 2. Pullata funerosus, 

 Harris, Ex. 76, pi. 22, /. 1, 2. Tipula brevicornis, Linn. 



