502 MR. E. S BAGNALL ON A COLLECTION OF 



third the lengtli o£ the eye. Antennpe nearly twice as long as the head, set 

 ventrally below the anterior part of the eyes, and between the ventral parts ; 

 relative length of joints : — 54 : 50 : 134 : 165 : 165 ; 96 : 64 : 32 ; 3-6 produced 

 distally into a shorter or longer stem beyond the broadest part, the produced 

 part being longer and more slender in 5 and 6 ; 7 and 8 broadly and obliquely 

 united, together fusiform. Sense-cones exceptionally long and slender, 

 protected immediately behind by short, slender, knobbed setfe, instead of 

 long bristles as in the known allied forms. Mouth-cone long and sharp, 

 reaching beyond pronotum. 



Prothorax 2'25 times as long as broad across hind angles, anterior margin 

 rather strongly emarginate; setse rather short, parallel-sided and faintly 

 expanded at tips; the longest (at posterior angles) from 0-35 to 0*4, and the 

 others about 0*32 the length of prothorax. 



Pterothorax as broad as long, surface, especially the metanotum medially, 

 more or "less plainly reticulated. Wings reaching to about the 6th abdominal 

 seo-ment, tinged with smoky yellow, darker near base, and median thickenings 

 and cilia brown. Median vein in fore- and hind-wings reaching to the distal 

 fourth ; cilia on both margins long and closely set, at least 32 duplicated at 

 posterior margin of fore-wing near apex. 



Fore-femur very slightly incrassate, with tooth near apex within and a few 

 minute spiniferous tubercles on inner margin ; fore-tibire with a double row 

 of short bristles their basal tubercles being vestigial ; fore-tarsus with a 

 minute tooth in both sexes. 



Abdomen long and slender, slightly narrower than pterothorax at b;ise, and 

 narrow^ed evenly to base of tube, all segments, excepting 9, distinctly trans- 

 verse. Tube O'O the length of tube, about 0"4 as broad at base as long and 

 0*45 as broad at apex as at base ; terminal hairs slender, about 0"7 the length 

 of tube. Bristles on 9th segment about as long as tube, the outermost pair 

 sliohtly shorter and more slender ; 7 and 8 with two pairs of blunt dorso- 

 lateral bristles, the outer being the longer, colourless ; 2-6 with similar but 

 shorter bristles, which are dark brown at base and colourless distally. In 

 addition, there is a shorter sharp spine at extreme posterior angles of 3-8. 

 Wino"-retaining spines on 2-6, and one vestigial pair at hind margin of 7. 



(^ . A little smaller and more slender ; genal spines not so noticeable. 

 Ninth tergite with a pair of spines placed above the posterior margin and 

 between the inner and outer bristles; outer pair of bristles slender, about 

 0*7 the length of tube, inner ones about as long as the tube. 



There can be little doubt that this is the species described by Buffa, the 

 short third antennal joint and the minute protecting hairs of the sense-cones 

 being distinctive features shown in BufFa's figure. 



\ Habitat. Trinidad, on and in cracks of a dead cacao-tree (Urich). 



