LIST OF DIPTERA. 205 



Chrysops calidus, n. s., mas. Niger, capite fulvo, thoracis lateribus 

 ferrugineis, abdomine ferrugineo nigro vittato, antennis nigris 

 pedibus fulvis, genubus, tibiis apice et protarsis nigris, alls nigro- 

 fuscis Jlavo vittatis. Thoracis vittis quatuor lateribus pectoreque 

 fulvis. 



Male. — Head tawny, with a piceous spot on each side above 

 the base of the feelers, and another on each side of the shining 

 tubercle on the front : sucker black ; lancets and palpi tawny : feel- 

 ers black, much longer than the head: chest and breast black, the 

 former slightly ferruginous on each side : abdomen bright ferrugi- 

 nous, a black stripe on the back, slightly interrupted on the hind 

 borders of the segments, tapering from the base till near the tip of 

 the abdomen, where it again widens: legs tawny; knees, tips 

 of shanks and fore feet black ; four hinder feet piceous, tawny at the 

 base : wings dark brown, with a broad yellow stripe from the base 

 unto two-thirds of the length, between which and the tip if may still 

 be traced ; wing-ribs and veins piceous ; poisers yellow. Fern. — 

 Chest black, with four tawny stripes ; sides and breast also tawny. 

 Length of the body 3 J- — 4 lines ; of the wings 7 — 8 lines. 



a. South Africa. 



Ectenopsis, Macquart. 



Ectenopsis vulpecula, Macq. Dipt. ExoU i. 1, 112, 1. Chrysops 



vulpecula, Wied. Auss. Zweif. i. 195. 

 a. ? 



Hexatoma, Meigen. 



Hexatoma bimaculata, Meig. Dipt. ii. 831. Macq. Hist. Nat. 

 Dipt. i. 213, 1. pi. 5, /. 6. Blanch. Hist. Nat. Ins. iii. 590. 

 Gim. Bull. Soc. Imp. Nat. Mosc. 1847, 1, 192, 1. Tabanus 

 pellucens, Fabr. Sp. Ins. 457, 12. Ent. Syst. iv. 365, 15. 

 Gmel. Ed. Syst. Nat. v. 2883, 23. Meig. Klass. Zweif. i. 

 172, e. Schcef. Icon. U 72, /. 6—8. Schell. Gen. Mouch. 

 t. 28, /. 3. Heptatoma bimaculata, Fabr. Syst. Anil. 105, 1. 

 Meig. Klass. Zweif. i. 156, 1. Latr. Gen. Crust, iv. 284. 

 Cons. Gen. 443. Tabanus albipes, Schrank. Ins. Austr. 977. 

 Faun. Boic. iii. 2531 . 



a. France ? 



b. Aix la Chapelle, Prussia. From Mr. Walker's collection. 



