12 



ME. F. WALKER ON DIPTEEA COLLECTED AT 



veins black, testaceous at the base ; discal transverse vein straight, 

 parted by a little more than half its length from the border, and by 

 full twice its length from the praebrachial transverse. Length of the 

 body 3 lines ; of the wings 5 lines. 



Gen. Detomtza. 



39. Dryomyza semicyanea, Walk. See Vol. III. p. 109. 



Gen. Sciomyza, FalUn. 



40. Sciomyza? leucomelana, Walk. See Vol. IV. p. 144. 



Snbfain. Lauxanides, Walk. 

 Gen. Lonchjsa, FalUn. 



41. Lonchsea? consentanea, Walk. See Vol. IV. p. 146. 



Subfam. Oetalides, Holiday. 

 Gen. Lampeogastee, Maeq. 



42. Lamprogaster superna, n. s. Fozm. Testacea, capite supra 

 nigro, oculis albo-marginatis, thoracis disco cyaneo, abdomine supra 

 purpureo, alis cinereis basi et apud costam fulvis, striga transversa 

 guttaque antica exteriore nigris, striga costali apicali nigricante. 



Female. Testaceous, shining ; head black above, white about the eyes ; 

 mouth large ; antenna? short, 3rd joint not more than half the length 

 of the face ; arista bare, pubescent at the base ; scutellum and disk of 

 the scutum blue ; abdomen oval, purple above, a little shorter and 

 broader than the thorax ; wings cinereous, tawny at the base and along 

 the costa, a black streak extending from the costa along the prajbrachial 

 transverse to the prajbrachial vein ; a black exterior dot on the radial 

 vein, and a blackish streak at the tip of the costa ; veins black, testa- 

 ceous towards the base ; discal transverse vein straight, oblique, parted 

 by hardly one-third of its length from the border, and by about its 

 length from the prcebrachial transverse. Length of the body 5 lines; 

 of the wings 10 lines. 



Gen. Platystoma, Lair. 



43. PLATYSTOMA POTEN8, n. t. Mas et Fatm. Cinerca, crassa, capite 

 ochraceo, thorace vittii Mptem nigris, abdomine subtus testaceo, 

 pediblll rufescentibus, tanil nigris basi testaceis, tibiis anticis apice 

 nigris, alis cinereis nigricante confertissime guttatis, halteribus tes- 



t.accis. 



Male (iinL Female. Cinereous, broad, t hick ; head ochraccous, white 



■bout the eyes and behind; face with a slender piceotu stripe ; an- 

 teunae ochraceoui ; 3rd joint long, Linear, about half the length of the 



