322 JAIVIES WATERSTON. 



each spot containing antero-laterally a much smaller paler indefinite bro\^Ti mark. 

 The wings are hyaline, clouded narrowly at the junction of the submarginal and 

 marginal veins ; neuration very pale brown. Fore coxae pale, hmd coxae 

 concolorous with thorax, mid coxae pale, slightly darker externally ; otherwise 

 the legs are very pale, only the claws embrowTied. 



Head, from in front, very broad (4 : 3), mouth-opening moderately narrow ; the 

 space between the extremities of the genal keel four-fifths the shortest distance 

 across the frons. Eyes moderate, occupying three-fifths of the depth. Frons 

 broad, the orbits continuously rounded, at their nearest over one-third (6 : 15) of 

 the entire width of the head, the distance increasing on the base line to about 

 three-fifths ; frons ventro-laterally well developed, the genal keel far back, with 

 the lower rounded angle of the eye in front. Toruli (8 : 5) with the inner sides 

 subparallel, 2\ times their ovm length from the clypeal edge, a little more than their 

 own length (9 : 8) apart, and about 1| times their length from the orbits. 

 Reticulation rather large, distinct and regular, especially superiorly, flowing round 

 the toruli ventrally, where it becomes faint. In each uj^per frontal angle are 4 

 stout coloured spinose bristles, 2 standing on the upper orbit. There are no well- 

 difterentiated orbital bristles, but 7-8 minute and weaker ones stand in the place 

 of the usual row, with about as many more towards the outside of the scapal 

 groove ; similar weak bristles (4-5 pairs) between the toruli. About the mid line 

 on each side below the toruli, the lower frons bears 8-10 weak minute bristles, 

 and there are 4 (2, 2) well above the clypeal edge, the middle pair stronger. In 

 profile the head is antero-posteriorly thin, the genae proper flattened ; from above 

 the head is lenticular, markedly concave posteriorly, the occipital edge decided. 

 Ocelli in a broad triangle, the posterior pair on the occij)ital edge, with two stout 

 bristles between. On each orbit vertically are two more stout bristles in addition 

 to those already mentioned. 



Antennae. Length "75 mm. Bulla short, transverse, narrower than scape 

 basally. Scape (6 : 5) tapered neither at base nor apex, longer than the club, and 

 as long as the pedicel, ring joints, first and one-third of the second funicular joints. 

 Pedicel (5 : 3) half as long as the scape. Ring joints distinct, the edge of the 

 second (distal) covered on the inner aspect by a flange of the first ; funicle 

 cylindrical, joints subequal, the first and second just longer than wide, third and 

 fourth just transverse ; the club (5:5: 3) wider (7 : 6) than the last joint of the 

 funicle and exceeding the length of the last two funicular joints together. The 

 scape externally with a coarse pattern, with 7-8 oblique transverse rows of bristles 

 (2-4 per row) and densely clothed on the inside with minute stif? bristles along 

 the dorsal half to two-thirds ventrally and subventrally bare ; on the inner aspect 

 at the apex 2 stout spinose bristles ; pedicel with several scattered bristles, 

 1 stouter and spinose externally before the upper apical angle ; both ring joints 

 with a marginal row of stiff spinose bristles ; on the funicle the bristles are 

 mainly spinose and curved, wdth numerous small " mushroom " bristles, presutural 

 in position. The sensoria low and not produced apically, 6-8 on funicle joints, 

 and about a dozen on the first club segment. 



Month-parts. Labrum with four bristles ; stipes with a bold pattern and 3 bristles ; 

 maxillary palpus (8:5:7), the first joint with 1 bristle beyond one-half and 1 clear 



