24iG MR. avalkek's catalogue of dipterous insects 



ting, parted by hardly half its length from the border, and by much 

 more than half its length from the flexure of the prsebrachial. Length 

 of the body 4 lines ; of the wings 8 lines. 



Subfam, Anthomtides, Walk. 

 Gen. Spilogaster, Macq. 



56. Spilogaster xanthoceras, fFaZA;. See vol. iv. p. 141. 



Subfam. Helomyzides, Fallen. 

 Gen. Helomtza, Fallen. 



57. Helomyza nia'istriga, n. s. Fam. Testacea, palpis latiusculis, 

 abdomine apicem versus lauceolato, alis reneo-nigris basi limpidis albo 

 quinqviestrigatis. 



Female. Testaceous, with some stout black bristles ; face flat, shining, 

 with a groove on each side ; mouth and palpi short, the latter rather 

 broad ; arista black ; abdomen lanceolate towards the tip ; wings 

 aeneous-black, lirajnd at the base, adorned with five white streaks; 1st 

 and 2nd streaks extending from the costa to the middle of the disk, 

 where the 1st is connected with a vitreous streak which extends to the 

 hind border; 3rd streak oblique, discal; 4th anil 5th lanceolate ; 4th 

 subapical, longer than the 5th, which joins the hind border ; veins 

 black, testaceous towards the base, white in the streaks ; cubital and 

 prsebrachial veins curved ; discal transverse vein oblique, slightly an- 

 gular, parted by full four times its length from the border, and by a 

 little less than its length from the prsebrachial transverse, which is 

 rather long. Length of the body 7 lines ; of the wings 12 lines. 



68. Helomyza quadrifera, n. s. Fcem. Testacea, abdomine apicem 

 versus lanceolato, dimidio postico nigro, alis nigris basi et apud mar- 

 ginem posticum limpidis, macula costali alba subquadrata. 



Female. Testaceous, like the preceding species in structm-e ; hind half 

 of the abdomen black, lanceolate towards the tip ; the black hue ex- 

 tending most on each side ; wings black, limpid at the base and along 

 the hind border, with a white subquadrate costal spot, opposite to 

 which the black hue extends nearly to the hind border ; veins black, 

 testaceous in the limpid part ; cubital and prsebrachial veins nearly 

 straight ; discal transverse vein straight, parted by less than half its 

 length from the border, and by about its length fi-om the pra^brachial 

 transverse. Length of the body 5 lines ; of the wings 9 lines. 



Subfam. Borborides, Holiday. 



Gen. CoTAMBA, n. g. 



Mas. Corpus sat latum. Caput supra planum. Oculi nudi. Os par- 

 vum. Palpi breves. Anfennce brevissimse ; articulus 3"^ magnus, 



