826 LIST OF DIPTERA. 



Sarcophaga violenta, n. s., fem. Nigra, capite supra nigro-fusco, 

 thorace vittato, abdomine cano-nigro tessellato, palpis nigris, an- 

 tennis piceis basiferrugineis, pedibus nigris, alis subcinereis. 

 Body black, clothed with black hairs and bristles : head dark 

 brown above, adorned with hoary lustre, clothed behind and beneath 

 with hoary hairs ; a pitchy stripe widening from the eyelets to the 

 feelers ; epistoma white, slightly prominent ; face white, its sides 

 beset with a few bristles along half the length : eyes pitchy ; fore 

 part flat, its facets larger than those elsewhere : sucker black, clothed 

 at the tip with tawny hairs ; palpi long, black : feelers nearly as long 

 as the face ; first and second joints ferruginous ; third joint pitchy, 

 linear, almost truncated at the tip, full four times the leugth of the 

 second ; bristle black, feathered for half the length, twice the length 

 of the third joint: chest and breast hoary ; chest striped : abdomen 

 obconical, hoary, longer and narrower than the chest, adorned with 

 a black stripe ; hind borders of the segments also black; an inter- 

 rupted black stripe on each side ; a lew black spines towards the tip, 

 which is red : legs black, clothed with black hairs and bristles ; 

 thighs slightly hoary ; foot-cushions tawny : wings slightly gray ; 

 wing-ribs tawny ; veins black ; tip cross-vein forming a right angle 

 with the fourth longitudinal vein, much curved inward near the 

 base, straight from thence to the tip, joining the border at some dis- 

 tance above the tip of the wing ; lower cross-vein with two curves, 

 the lower inward, the other outward ; scales whitish, with pale yel- 

 low borders. Length of the body 3| lines ; of the wings 7 lines. 

 o. Galapagos. Presented by C. Darwin, Esq. 



*** Nigro-terminatoe. 

 f Fulvo-vittatae. 



Sarcophaga praedatrix, n. s., fem. Nigra, capite thoracique vittis 

 quatuor fulvis, pectore pilis fulvis vestito, abdomine fulvo tessel- 

 lato, antennis pedibusque nigris, illorum articulo 3° piceo, alis 

 subcinereis basijlavis. 



Body black, clothed with black hairs and bristles : head pale 

 tawny, clothed in front and beneath with pale tawny hairs ; a black 

 stripe fringed with black bristles between the eyelets and the base of 

 the feelers ; epistoma slightly prominent ; sides of the face fringed 

 with bristles at the base : eyes dark red : sucker black, clothed with 

 pale tawny hairs ; palpi black, beset with black bristles : feelers 

 black, nearly as long as the face; third joint pitchy, linear, rather 

 deep, truncated at the tip, about thrice the length of the second 

 joint ; bristle pitchy, black at the base, almost twice the length of 

 the third joint, feathered for more than half its length : chest with 



