MR. WALKEK ON DIPTERA COLLECTED IN AMBOTNA. 165 



legs tawny ; posterior femora tawny towards their tips. Wings slightly 

 greyish, with four irregular blackish bordered tawny bands ; 1 st band 

 abbreviated hindward, joined in the disk to the 2nd; 2nd, 3rd and 4th 

 joined along the costa ; 4th oblique, forked hindward, the outer fork 

 occupying the tip of the wing ; discal transverse vein straight, upright, 

 parted by less than one-fourth of its length from the border, and by 

 hardly more than its length from the prsebrachial transverse. Length 

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



67. Trypeta signifacies, n. s. Mas. Viridis, metallica, nitens, lati- 

 uscula, capite antico ocbraceo-albo facie brevi strigis duabus nigris, an- 

 tennis pallide testaceis, arista plumosa, abdomine nigro, pedibus testa- 

 ceis, femoribus nigricantibus, alis limpidis, fasciis quatuor nigricantibus, 

 1" et 2^ connexis, 3* et 4* apud costam connexis, 4" valde obliqua sub- 

 apicali ; striga nigricante inter 3^" et 4^™, halteribus albis. 



Male. Metallic green, shining, rather broad. Head ochraceous, white 

 in front and about the eyes; face short, with two diverging black 

 streaks; epistoma prominent. Antennae pale testaceous, not near 

 reaching the epistoma ; 3rd joint conical ; arista plumose. Abdomen 

 black, not longer than the thorax. Legs testaceous ; femora blackish. 

 Wings limpid, with four broad blackish bands; 1st and 2nd bands 

 connected, except near the costa, 3rd and 4th connected on the costa ; 

 4th very oblique, subapical, having a blackish streak between it and 

 the 3rd ; discal transverse vein straight, nearly upright, pai-ted by 

 much less than its length from the border, and by very much more 

 than its length from the praebrachial transverse. Ilalteres white. 

 Length of the body 2^ lines ; of the wings 4 lines. 



Subfam. Sepsides, Walk. 



Gen. Sepsis, Fabr. 



68. Sepsis basifera. Walk. See vol. iii. p. 124. 



Gen. Calobata, Fair. 



69. Calobata impingens. Walk. See vol. iv. p. 16. 

 Micropeza albimana, Doll. MSS. 



Subfam. Psilides, Walk. 



Gen. Micropeza, Macq. 



70. Micropeza fragilis. Walk. See vol. i. p. 37- 

 Micropeza tenuis. Dol. Nat. Tijd. Ned. Ind. 1858. 



Gen. Nerius, Wied. 

 7\. Nerius duplicatus, Wied. See vol. iii. p. 125. 

 Nerius striatus, Dol. Nat. Tijd. Ned. Ind. 1856. 



