MB. -WALKEU OIT DIPTEEA COLLECTED AT MAEiESSAE, 125 



Female. Cinereous, slender; head white ; frontalis deep black, linear, 

 with stout bristles along each side ; facialia without bristles ; epistoma 

 not prominent ; eyes bare ; palpi short, slender ; antenna) reaching 

 the epistoma ; 3rd joint linear, rounded at the tip, about six times the 

 length of the 2nd ; arista rather slender, not much longer than the 

 3rd joint ; abdomen black, cylindrical, very much longer than the 

 thorax, with a white baud on the fore border of each segment ; wings 

 cinereous; veins black; prffibrachial vein forming a slightly rounded 

 and extremely obtuse angle at the flexure, straight from thence to the 

 tip ; discal transverse vein straight, parted by about its lengtli from 

 the border, and by much less than its length from the flexure of the 

 pratbrachial ; alulae and halteres A^hite. Length of the body 2| lines; 

 of the wings 4^ lines. 



Gen. EuRTGASTEE, ILacg. 



104. EuRYGASTER RiDiBUNDA, n. s. Fcem. Cinerea, capite argenteo, 

 oculis pubescentibus, palpis fulvis clavatis, antennis piceis, thorace 

 lineis quatuor nigris, abdomine nigro fasciis tribus latis albido-cinereis, 

 pedibus nigris, alis subcinereis basi et apud costam subluridis, hal- 

 teribus fulvis. 



Female. Cinereous, with black bristles ; head silvery white in front and 

 behind, clothed behind and beneath with white hairs ; frontaha deep 

 black, hardly widening towards the epistoma, with a few black bristles 

 along each side and beyond ; facialia without bristles ; epistoma not 

 prominent ; eyes pubescent ; palpi tawny, clavate ; antennae piceous, 

 almost reaching the ejjistoma; 3rd joint linear, slightly rounded at the 

 tip, nearly thrice the length of the 2nd ; arista slender, very much 

 longer than the 3rd joint; thorax with four black lines; abdomen 

 black, conical, a little broader and longer than the thorax, with three 

 broad whitish-cinereous bands, somewhat spinose towards tjie tip ; 

 legs black, hardly bristly ; wings greyish, with a lurid tinge at the 

 base and along part of the costa ; veins black, tawny towards the base ; 

 praebrachial vein forming a rounded and obtuse angle at its flexure, 

 nearly straight from thence to its tip ; discal transverse vein hardly 

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

 and by much less than its length from the flexure of the praebrachial ; 

 alulae cinereous; halteres tawny. Length of the body 41 lines; of 

 the wings 8 lines. 



105. EuRYGASTER REMiTTENS, n. s. Fmii. Cinerea, capite albo, 

 oculis pubescentibus, palpis, antennis pedibusque nigris, thorace lineis 

 quatuor nigris, scutello rufo, abdomine nigro fasciis cinereis fere inter- 

 ruptis, segmenti 2' lateribus rufescentibus, alis cinereis basi fusces- 

 centibus, alulis albidis. 



Female. Cinereous, slightly bristly ; head white, clothed behind and 

 beneath with white hairs; frontalia deep black, widening towards the 

 face, with a row of bristles along each side and beyond ; facialia without 



