376 Mit. K. S. BAGNALL : CONTRIBUTION TOWARDS A 



posterior pair of ocelli, greater than in that species. Antenna3 inserted at 

 extreme apex o£ head and separated at base, long and slender ; one and 

 one-half times the length of head ; joints 3 to 5 mildly claviforni, 6 to 

 8 fusiform. Basal joint short ; third more than four times the length of 

 second ; fourth about five-eighths of third ; fifth four-fifths of fourth ; sixth 

 three-quarters of fifth ; seventh two-thirds of sixth ; and apical joint much 

 narrower, but very slightly shorter, than the penultimate. Pair of sense- 

 cones on both third and fourth joints moderately long and acute, pair on fifth 

 and a single one on the outer side of sixth joint very short and blunt. 

 Mouth-cone rounded at tip and not reaching halfway across prosternum. 

 Maxillary palpi comparatively short, apical joint about three times the length 

 of basal, narrower and furnished with three sensory filaments, which are 

 shorter and stouter than is usual ; labial palpi short and stout, with three 

 very short sensory filaments at tip. 



Prothorax one-half the length of head and very slightly wider at base than 

 long; transverse depression before base; surface smooth, but not shining; 

 the fovea on each side are obsolete, and the sides of prothorax gradually 

 rounded from anterior margin to middle. Spine at each posterior angle short 

 and weak, and inner posterior-marginal pair slightly shorter and more slender ; 

 other prothoracic spines apparently obsolete. One long, strong bristle on 

 each fore-coxa and several shorter ones. Fore-femur enlarged, broadest 

 through basal third, where it is less than one-half as broad as long; series of 

 spines on inner edge, and several larger ones on the outer edge interspersed 

 with short ones,. some of these latter being stouter than the others; tibia 

 broad, and tarsus armed with a somewhat acute tooth. Pterothorax broader 

 than the width across fore-coxee, almost square ; the sides of metathorax 

 gently arcuate and narrowed to base of abdomen. Wings reaching to fourth 

 abdominal segment, cilia shortest at ends. Intermediate and hind legs long ; 

 femora with a few short spines, and the tibiee furnished for the entire length 

 with several regular rows of short white hairs. 



Abdomen about three-fifths the total length of body, having all segments 

 elongated ; eighth segment twice as long as broad, and ninth only a little more 

 than one-half the length of eighth. Tube long and slender, evenly narrowed 

 from base to tip ; about twice as wide at base as at apex ; two and one-quarter 

 times the length of the preceding segment, and five-sixths the length of head. 

 Terminal hairs short and weak, bristles at apex of ninth segment only about 

 four-fifths the length of tube, and other abdominal bristles colourless and 

 comparatively short and weak. 



? . The female has the cheek more sparsely set with setpe ; the post-ocular 

 spines are present. The abdomen is broader as in foveicollis female, the tube 

 is stouter, whilst the bristles at apex of the ninth segment are as long as the 

 tube. 



Habitat. One male and one female, Los Tejes, Venezuela, September 20th, 

 1891 (Meinert). 



