LIST OF DIPTEEA. 903 



Musca primitiva, n. s., fem. Nigra, canescens, capite albo micante, 

 thoraci vittis duabus latis cinereis, abdomine fulvo micante sub- 

 tessellato,palpis anlennis pedibusque nigris, alls limpidis. 

 Body black, with a hoary covering-, clothed with black hairs 

 and bristles: head covered with pale yellow bloom, adorned with 

 white lustre in front ; a broad hoary stripe fringed with short bristles 

 between the eyelets and the feelers ; epistoma not prominent ; sides 

 of the face beset with bristles at the base : eyes bright red ; fore 

 part nearly flat, its facets very small : sucker and palpi black : 

 feelers black, nearly as long as the face ; third joint linear, slender, 

 somewhat truncated at the tip, full four times the length of the se- 

 cond joint ; bristle thick near the base, very much longer than the 

 third joint : chest adorned with two broad gray stripes : breast co- 

 vered with pale yellow bloom : abdomen nearly oval, adorned with 

 pale tawny reflections, slightly tessellated, a little shorter and 

 broader than the chest ; under side hoary : legs black, clothed with 

 black hairs and bristles : wings colourless : wing-ribs yellow ; veins 

 black, yellow towards the base ; tip cross-vein forming an obtuse 

 angle with the fourth longitudinal vein, slightly curved inward 

 along the whole length, joining the border a little above the tip of 

 the wing ; lower cross-vein straight for half the length, very slightly 

 curved outward from thence to the tip ; scales white, with pale 

 yellow borders. Length of the body 2i lines ; of the wings 5 lines. 

 a. China. Presented by G. T. Lay, Esq. 



Musca prisca, n. s., fem. Nigra, palpis antennis pedibusque nigris, 



alls limpidis. 



Body black, clothed with black hairs and bristles : eyes red 

 fore part convex ; all the facets very small : sucker and palpi black 

 feelers black : legs black, clothed with black hairs and bristles 

 foot-cushions pitchy : wings colourless ; wing-ribs and veins yellow 

 veins pitchy towards the tips ; tip cross-vein forming an obtuse an- 

 gle with the fourth longitudinal vein, very slightly curved inward 

 along the whole length, joining the border at a short distance above 

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

 the lower inward, the upper outward ; scales white, with pale yel- 

 low borders ; poisers tawny. Length of the body 2 lines ; of the 

 wings 4 lines. 



a. New Holland. Presented by the Haslar Hospital. 





