778 LIST OF DIPTERA. 



Tachina Rhceo, n. s. Cana, capite argenleo micante, thorace viltis 

 quatuor nigris, scutello fulvo, abdomine cano-fulveseente vittis 

 tribus fasciisque nigris, palpis fulvis, antennis pedihisque nigris, 

 alis limpidis. 



Body black, covered with hoary bloom, clothed with black hairs 

 and bristles: head adorned in front with silvery lustre, clothed 

 behind and beneath with hoary hairs ; a tawny tinge on the crown ; 

 sides of the face without bristles, except at the base ; epistoma not 

 prominent ; sucker pitchy, clothed with pale tawny hairs ; palpi 

 tawny, beset with black bristles : eyes red, not hairy : feelers black, 

 a little shorter than the face ; third joint linear, ferruginous at the 

 base, much longer than the second, truncated at the tip; bristle 

 much longer than the third joint, its first joint very short, second 

 rather short, third stout for almost one-third of the length, slender 

 from thence to the tip : chest adorned with four indistinct black 

 stripes; scutcheon tawny : abdomen obconical, not longer than the 

 chest, its bloom with a slight tawny tinge, and having a tessellated 

 appearance, being interrupted by three black stripes, and by the 

 black hind borders of the segments ; last segment very bright tawny : 

 legs black, clothed with black hairs and bristles; thighs hoary : foot- 

 cushions tawny : wings colourless, tinged with yellow at the base ; 

 wing-ribs tawny ; veins black, tawny at the base ; tip cross-vein 

 forming a very obtuse angle with the fourth longitudinal vein, 

 having a very indistinct inward curve for nearly half the length, 

 straight from thence to the tip, joining the border at some distance 

 above the tip of the wing ; lower cross-vein with two very slight 

 curves, the lower inward and indistinct, the other shorter, more dis- 

 tinct and outward ; scales large, white with pale yellow borders. 

 Length of the body 4 lines ; of the wings 7 lines. 

 a. ? From Mr. Children's collection. 



Tachina Theutis, n. s. Nigro-cinerea, capite albo micante, abdo- 

 mine cano tessellato, palpis fulvis, pedibus nigris, tibiis fulvis, 

 alis subcinereis. 



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

 with white lustre, darker on the crown where there is a pitchy stripe 

 from the eyelets to the feelers, clothed beneath with hoary hairs, 

 very prominent about the feelers ; sides of the face without bristles ; 

 peristoma tawny ; epistoma not prominent ; eyes dark red, not hairy : 

 palpi tawny, beset with black bristles : feelers black, nearly as long 

 as the face ; first and second joints ferruginous ; third slender, linear, 

 truncated at the tip, about thrice the length of the second; bristle 

 more than twice the length of the third joint, its first and second 



