130 Mil. WALKER ON DIPTERA COLLECTED AT MAKESSAR. 



duced ; eyes bare ; proboscis and palpi tawny, the former geniculated, 

 rather long; antennae pale luteous, 3rd joint lanceolate, not reaching 

 the epistoraa, thrice the length of the second ; arista plumose : thorax 

 with two slender deep black stripes and \a ith two exterior broad black- 

 ish stripes ; scutellum with six black spines : abdomen tawny, fusiform^ 

 longer than the thorax, with little black hairs, with several black spines, 

 and with a triangular black spot on the hind border of each segment ; 

 3rd segment with a testaceous spot at the base, 4th with a testaceous 

 basal band : legs long, black ; femora tawny, with black tips ; tibiae 

 partly dark tawny : wings cinereous, blackish along the veins, with an 

 oblique white basal band; costa black at the base ; veins black, testa- 

 ceous in the white part; praebrachial vein forming a slightly acute 

 angle and emitting a short stump at its flexure, curved inward from 

 thence to its tip ; discal transverse vein undulating, parted by hardly 

 more than half its length from the border, and by less than its length 

 from the flexure of the praebrachial ; alulae white. Length of the 

 body 5 lines; of the wings 10 lines. 



Mas. Subaurato-cinerea, abdomine testaceo lanceolato longissimo fasciis 

 maculisque trigonis nigris connexis, pedibus anticis longissimis, alis 

 apud costam nigricantibus, venis vix nigricante marginatis. 



Male. Pale gilded cinereous, narrow^ bristly ; frontalia piceous, widen- 

 ing much towards the epistoma, with bristles along each side ; sides 

 of the peristoma much produced ; thorax with four deep black stripes, 

 the outer pair rather broad ; abdomen testaceous, lanceolate, twice the 

 length of the thorax ; hind border of each segment with a black band 

 which is connected with a triangular black spot ; legs very long, fore 

 legs extremely long ; wings blackish along the costa, hardly blackish 

 along the veins ; praebrachial vein curved slightly inward near its flex- 

 ure, almost straight from thence to its tip. Length of the body 8 

 lines; of the wings 12 lines. 



115. Dexia includens, n. s. Fcem. Atra, capite apud oculos albo, 

 palpis antennis pedibusque nigris, thorace vittis duabus cinereis, ab- 

 domine lanceolato fasciis tribus albis late interruptis, pedibus longius- 

 culis, alis nigricanti-cinereis, halteribus testaceis. 



Female. Deep black ; head cinereous in front, white about the eyes ; 

 vertex narrow ; frontalia widening to the face, with bristles along each 

 side ; facialia without bristles ; epistoma not prominent ; palpi slen- 

 der ; antennae reaching the epistoma, 3rd joint narrow, linear, about 

 four times the length of the 2ud ; thorax cinereous on each side, and 

 with two cinereous stripes ; abdomen lanceolate, setose, nearly twice 

 the length of the thorax, with three widely interrupted white bands ; 

 legs rather long ; wings blackish grey ; veins black ; praebrachial vein 

 forming a very obtuse and slightly rounded angle at its flexure, almost 

 straight from thence to its tip ; discal transverse vein almost straight, 

 parted by hardly less than its length from the border, and by much 

 more than its length from the flexure of the praebrachial ; alulae 



