236 MIJ. F. WALKER ON DIPTEEA COLLECTED IK 



gris, scutelli apice fulvo, abdomine fulvo albido-micaceo segmentonim 

 marginibus posticis nigro trimaculatis, coxis femoribusque fulvis, alls 

 cinereis, venis fusco subnebulosis, halteribus flavis. 

 Female. Black, with hoary tomentum. Head white, with a slight fawn- 

 coloured tinge on each side of the frontalia, which are ferruginous and 

 linear. Proboscis black, tawny towards the base. Antennse tawny, 

 not near reaching the epistoma. Thorax with four indistinct black 

 stripes. Scutellum tawny towards the tip. Abdomen oval, tawny, a 

 little longer than the thorax, with whitish reflections; three rows of 

 black spots on the hind borders of the segments. Legs long; coxje 

 and femora tawny. Wings cinereous; veins black, slightly clouded 

 with brown ; prsebrachial vein forming a slightly rounded and ob- 

 tuse angle at its flexure, straight thence till near its tip, where it is 

 slightly bent ; discal transverse vein undulating, parted by much more 

 than half its length from the border, and by much less than its length 

 from the flexure of the prsebrachial vein ; alula? whitish cinereous ; hal- 

 teres pale yellow. Length of the body 5 lines; of the wings 10 lines. 



Subfam. Saecophagides, Wane. 



Gen. Saecophaga, Meigen. 



32. Sarcophaga brevis, n. s. Focm. Nigra, breviuscula, capite al- 

 bido, frontalibus atris, palpis ferrugineis, thorace vittis quatuor cauis, 

 abdomine ovato maculis cinereis nitentibus quadrifariam tessellato, 

 alis cinereis, aluhs albis, halteribus fulvis. 



Female. Black, rather short. Head whitish, shining; frontalia deep 

 black, hardly widening in front. Palpi ferruginous. Thorax with 

 four well-defined hoary stripes. Pectus hoary. Abdomen oval, not 

 longer than the thorax, distinctly tessellated with four rows of shining 

 cinereous spots; underside hoary. Wings cinereous; veins black, 

 with the usual structure ; alula; white ; halteres tawny. Length of 

 the body 5 lines; of the wings 10 lines. 



Subfam. MusciDES, ?Fa?^. 



Gren. Pteellia, Besv. 



33. Pyrellia obtrusa. Walk. See Vol. IIL p. 105. 



G-en. OcHEOMTiA, Macq^. 



34. Ochromyia promittens. Walk. See Vol. IV. p. 134. 



Gen. MuscA, Linn. 



35. MuscA PRECOX, n. s. Mas. Nigra, sat angusta, capite argenteo 

 thorace vittis tribus canis, abdomine cauo lurido vitta dorsali suturisque 

 jiigris, alis fuscescenti-cinereis. 



