116 LIST OF DIPTEBA. 



Plecia collaris, Wied. Auss. Zweif. i. 74, 3. Hirtea collaris, Fabr. 

 Syst. Anil. 54, 12. Laphria thoracica, Fabr. Syst. Anil. 163, 

 32. Penthetria collaris, Wied. Dipt. Exot. i. 32, 3. 



a. Eio Janeiro. Presented by the Entomological Club. 



Plecia ignicollis, n. s., mas. et fem. Atra, thoracis disco coccineo, 

 antennis pedibusque nigris, alis fuscis. 



Body deep black, velvet-like : feelers black : disk of chest bril- 

 liant orange : legs black ; tips of hind thighs and base of hind feet 

 somewhat dilated : wings dark rich brown, especially at the base and 

 along the fore border ; veins and poisers piceous. Length of the 

 body 3 — 4 lines ; of the wings 8 lines. 



a. Canton. Presented by E. Doubleday, Esq. 



b. Nepaul. From the Hardwicke bequest. 



Plecia fulvimacula, n. s. Nigra, thoracis lateribus fulvo macula- 

 tis, metathorace rufo-fusco, abdomine piceo, antennis nigris, fe- 

 moribus basi piceis, alis nigro-fuscis. 



Body black, shining : feelers black : chest with a large tawny 

 spot on each side above the base of the wing : hind chest reddish 

 brown : abdomen dull piceous : legs black, shining ; thighs piceous 

 towards the base : wings dark brown, especially towards the fore 

 border, where there is a small narrow black brand ; veins and 

 poisers piceous. Length of the body 4 lines ; of the wings 8 lines. 



a. Venezuela. From Mr. Dyson's collection. 



Plecia ruflthorax, n. s., fem. Nigra, thorace rufo, alis nigris. 



Body black : feelers also black : chest and breast bright red : 

 legs black, clothed with very short tawny hairs : wings black ; veins 

 of the same colour ; poisers dark piceous. Length of the body 2\ 

 lines ; of the wings 6 lines. 



a. Jamaica. From Mr. Gosse's collection. 



Dilophus, Meigen. 



Dilophus febrilis. Tipula febrilis, Linn. Syst. Nat. ii. 976, 44. 

 Faun. Suec. 1768. Gmel. Ed. Syst. Nat. v. 2824, 44. Fabr. 

 Sp. Ins. ii. 410, 55. Mant. Ins. ii. 327,60. Ent. Syst. iv. 250, 

 79. Berk. Syn. Nat. Hist. i. 162. Stew. El. Nat. Hist. ii. 

 253. Turt. iii. 594. Latr. Gen. Crust, iv. 267. Cons. Gen. 

 442. T. forcipata, Schrank. Faun. Boic. iii. 2339. T. Marci, 

 Schrank. Ins. Austr. 877. Hirtea febrilis, Fabr. Ent. Syst. 



