COLLECTED IN BORNEO. 117 



marginatis, pedibus fulvis, tibiis posticis femoribusque piceo-vittatis, tarsis 

 posticis nigris, alis luridis triente apicali fusca. 

 Female. Piceous. Head and pectus with gilded tomentum. Mystax with 

 several gilded bristles. Antennae tawny ; arista as long as the preceding 

 joints together. Thorax with two oblique streaks on each side, and with 

 two stripes of gilded tomentum. Abdomen moderately long, hardly sty- 

 late j hind borders of the segments testaceous. Legs tawny ; femora and 

 hind tibiae mostly piceous above ; hind tarsi black. Wings lurid j apical 

 third part brown, which colour extends further along the hind border ; 

 veins black, tawny at the base ; cubital vein forked at a little beyond half 

 its length ; hind fork very undulating ; 3rd externo-medial vein joining 

 the 4th at some distance from the border. Halteres tawny. Length of 

 the body 5| lines ; of the wings 12 lines. 



66. Asiltts contortus, n. s., fcem. Niger, cinereo-tomentosus, facie albida, 

 mystace supra nigro subtus albido, antennis nigris, thorace vittis duabus 

 nigricantibus, pectore cano, abdomine subaureo piloso segmentis testaceo- 

 marginatis, pedibus ferrugineis, femoribus tibiisque apice tarsisque nigris, 

 alis luridis areolarum apicalium fuscarum discis pallidioribus. 



Female. Black, with cinereous tomentum. Face prominent, whitish. My- 

 stax with some black bristles above, and with many whitish bristles be- 

 neath. Antennae black ; arista as long as the preceding joints together. 

 Thorax with two indistinct blackish stripes. Pectus hoary. Abdomen 

 with slightly gilded hairs, moderately long, hardly stylate ; hind borders 

 of the segments testaceous ; tip black, shining. Legs ferruginous ; tarsi 

 and tips of the femora and of the tibiae black. Wings lurid ; apical areo- 

 lets brown, with pale disks ; veins black ; cubital vein forked at beyond 

 half its length ; fore fork angular near its base ; hind fork very undulating; 

 3rd externo-medial vein joining the 4th near the border. Halteres tawny. 

 Length of the body 6 lines j of the wings 13 lines. 



Gen. Ommatius, Xlliger. 



67. Ommatius Hecale, Walk. See p. 14. 



G-en. Leptogaster, Meigen. 



68. Leptogaster tricolor, n. s., mas. Piceus, capite albido-tomentoso, 

 thoracis vittis duabus postice attenuatis pectorisque lateribus testaceis, ab- 

 domine nigro fasciis quinque flavis, pedibus flavis, tibiis posticis tarsisque 

 apice nigris, tarsis posticis ferrugineis apice nigris, alis cinereis costa 

 lurida, halteribus testaceis. 



Male. Piceous. Head with whitish tomentum. Antennae testaceous towards 

 the base. Thorax with two stripes, which are attenuated hindward, and 

 with the sides of the pectus testaceous. Abdomen black, with five yellow 

 bands. Legs yellow ; coxae and knees black ; hind femora striped with 

 black beneath ; hind tibiae with black tips ; hind tarsi ferruginous, with 

 black tips. Wings grey, lurid along the costa; veins black. Halteres 

 testaceous. Length of the body 7 lines ; of the wings 11 lines. 



69. Leptogaster intjtilis, n. s., mas. Niger nitens, pectore cano, pedibus 

 testaceis, femoribus tibiis et tarsorum articulis apice nigris, femoribus 



