LIST OF DIPTERA. 193 



the one white, the other red ; the white bands are broader beneath 

 than above, where they are very narrow on the middle of the back ; 

 the red bands appear only on the back, and are very narrow ; there 

 is also a tuft of red hairs at the base : legs dark ferruginous ; feet 

 piceous : wings colourless, with four brown bands, which are inter- 

 rupted and paler towards the hind borders ; the fourth, at the tip of 

 the wing, consists of two spots; wing-ribs and veins piceous; poisers 

 tawny. Length of the body 6 lines ; of the wings 14 lines. 



a. New Holland. Presented by J. Hunter, Esq. 



Silvius (?) eristaloides, n. s., mas. Piceo-ferrugineus, thorace nigro 

 bivittato alboque bimaculato, abdomine nigro fasciis rufis albis- 

 que, pedibus ferrugineis, alls cinereo-subfuscis piceo maculatis. 



Head ferruginous and thickly clothed with black hairs in front, 

 more thickly clothed with pale tawny hairs beneath: eyes bronze 

 colour : feelers tawny (?) : mouth black : chest dark ferruginous, 

 with a hoary bloom, and having two black stripes, in each of which 

 there is a narrow white spot : hind border of the scutcheon adorned 

 with bright red hairs : breast black, clothed with white hairs : 

 abdomen black, with alternate narrow pale red and broader 

 white bands, the former composed of hairs, the latter interrupted in 

 the middle; under-side ferruginous and white: legs ferruginous, 

 rather thickly clothed with short black hairs : wings light grayish 

 brown ; cross-veins clouded with piceous, and there is a spot of that 

 colour below the fore border, a little beyond two-thirds of the length 

 of the wing ; wing-ribs and veins black, some of the latter dark fer- 

 ruginous at the base of the wing ; poisers tawny. Length of the 

 body 7 lines ; of the wings 16 lines. 



a. New Holland. From Mr. Children's collection. 



This and the two preceding species will form a new genus 

 which approaches Anthrax. 



Chrysops, Meigen. 



Chrysops caecutiens, Fabr. Syst. Antl. 110, 1. Latr. Gen. Crust. 

 iv. 285. Cons. Gen. 443. Fall. Dipt. Suec. 9, 1. Meig. 

 Dipt. ii. 67, 2. Zelt. Ins. Lapp. 518, 1. Dipt. Scand. i. 123. 

 1. Macq. Hist. Nat. Dipt. i. 214, 1, pi. 5, /. 5. Gim. Bull, 

 Soc. Imp. Nat. Mosc. 1847, 1, 188, 1. Blanch. Hist. Nat. Ins. 

 iii. 591, pi. 2, /. 3. Tabanus caecutiens, Linn. Faun. Suec. 

 1888. Fabr. Sp. Ins. ii. 459, 27. Ent. Syst. iv. 372, 42. 

 Gmel. Ed. Syst. Nat. v. 2885, 1 7. Deg. Ins. vi. 90, 6. Schell. 

 Gen. Mouch. t. xxviii. /. 1,2. Lam. Anim. sans Verteb. iii. 



S 



