LIST OF DIPTERA. 767 



the tip ; scales white, with yellow borders. Length of the body 3 



lines ; of the wings 5^ lines. 



a. North America. Presented by the Entomological Club. 



Tachina Panastius, n. s. Cinereo-fulva, capite pallido, thorace ni- 

 gro quadrivittato, scutello abdomineque piceis hoc cano micante, 

 palpis futvis, antennis pedibusque nigris, alls subcinereis. 

 Body beset with black hairs and bristles : head pale tawny, 

 silky, yellowish white in front, thickly clothed behind and beneath 

 with pale dull yellow hairs ; sides of the face fringed with bristles 

 along half the length from the base ; epistoma rather prominent : 

 eyes red, not hairy : sucker black, clothed at the tip with tawny 

 hairs ; palpi tawny, long, slender, beset with black bristles : feelers 

 black, as long as the face ; tips of the first and second joints ferru- 

 ginous ; third joint nearly linear, more than twice the length of the 

 second joint, flat above, very slightly concave beneath, almost trun- 

 cated at the tip ; bristle black, nearly twice the length of the second 

 joint; its first joint obsolete; second joint very short; third joint 

 stout for about one-third of the length, very slender from thence to 

 the tip : chest covered with grayish tawny bloom, which is inter- 

 rupted by four slender black stripes ; scutcheon pitchy, armed with 

 long black spines : abdomen pitchy, nearly oval, not longer than the 

 chest ; fore borders of the segments especially on each side and 

 nearly the whole of the last segment adorned with hoary lustre 

 which has a slight yellowish tinge : legs black, clothed with black 

 hairs and bristles ; claws towards the base and foot-cushions tawny : 

 wings slightly gray ; wing-ribs dark tawny ; veins black, tawny to- 

 wards the base ; tip cross-vein forming a slightly obtuse angle with 

 the fourth longitudinal vein, which projects a little beyond it, very 

 slightly curved inward, joining the border at some distance above 

 the tip of the wing ; lower cross-vein very slightly curved inward ; 

 scales yellowish white. Length of the body 5 lines ; of the wings 

 10 lines. 



a. Nova Scotia. From Lieut. Redman's collection. 



Tachina Mella, n. s. Cana, capite aureo, thorace vittis quatuor ni- 

 gris, abdominis segmento 2° maculis duabus ferrugineis, palpis 

 fulvis, antennis pedibusque nigris, alls subcinereis basi albidis. 

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

 with golden bloom, pitchy about the eyelets, and having a velvet- 

 like black stripe from thence to the feelers, thickly clothed beneath 

 with hoary hairs, adorned in front with silky- white lustre ; a ferru- 

 ginous band on each side between the eyes and the epistoma, which 



