132 THE CANADIAN ENTOMOLOGIST. 



in that fourth segment is very long and produced distally into a 

 narrow stem; segments 1 and 2 nearly concolorous with head, 

 3-8 lemon yellow, the three distal segments shiided with gra\'. 



Prothorax about 1.1 times as long as head and about 1.7 

 times as wide as long; pronotum smooth, absolutely without 

 sculpture; two strong dark bristles at posterior angles, and between 

 these along posterior margin two smaller pairs, the inner larger; 

 anterior and lateral margins each with al)()ut l'i\e pairs of small, 

 subequal bristles, in addition to a similar pair at the anterior 

 angles and a slightly stronger pair almost directly in front of the 

 inner long pair at posterior angles; no other pronotal bristles. 

 Wings of fore pair about lifteen times as long as width at middle, 

 (hirk gray-brown in distal three-fourths, basal fointh pale gray, 

 slightU- clouded basally; costa with about 28 bristles; anterior vein 

 with four pale bristles in a basal group, followed immediatel\- by 

 another series of 13 (jr 14, and then by two. well separated, near 

 apex; posterior \ein with 16 or 17, commencing just beyond the 

 first bristle in the long series of anterior vein. 



Abdomen of normal form, with a few very faint anastouKJsing 

 lines of sculptiu-e on basal segments; segment 8 unarmed, without 

 the usual comb-like fringe on posterior margin; segment 10 not 

 di\ided above, though irregularly weakened along dorsal line 

 near apex; abdominal bristles long, strong, brown. 



Measurements of holotype: Length 1.08 mm.; head, length 

 along median dorsal line, O.lOo mm.; width. 0.140 mm.; prothorax, 

 length 0.114 mm.; width 0.194 mm.; pterothorax, width 0.2o5 

 mm ; abdomen, width 0.300 mm. 



Antennal segments 1 2 3 4 5 6 7 8 



Length (m) 29 36 50 75 53 67 11 22 



Width()u) , 32 26 20 23 16 17 7. 5 



Total length of antenna, 0.343 mm. 



Described from one female collected by C. C. Gowdey, at 

 Kisube, Uganda, on coffee (No. 3582). 



Closely allied 1)\ the elongate fourth antennal segment to 

 Physothrips antennatus and Ph. antennalis, but differing from 

 both in the pale antennae, and from the ff)rmer, at least, in the 

 smooth, sparsely spinose pronotinn. 



