120 INSECUTOR INSCm^ MENSTRUUS 



narrowly oval, the fourth one-hcJf longer than the third, slender. Meso- 

 notum dark brown, the submedian lines narrowly white-scaled. Scutellum 

 reddish brown, postscutellum darker. Abdomen mostly dark brown, the 

 basal segment with silvery scales, the others with rudimentary posterior 

 lines of whitish scaJes and irregularly rectangular lateral patches of the 

 s£une. Genitalia fuscous yellowish, sparsely white-haired ; venter yellowish, 

 sparsely clothed wath dull silvery scales. Wings hyaline, with unusually 

 long, thick bramches ; costa dark brown, a small white spot near the basal 

 third. HcJteres fuscous basally, whitish apically. Coxae and legs mostly 

 dark reddish brown, the tibiae narrowly annulate with white. The pul- 

 villi nearly as long as the rather heavy, unidentate claws. Genitalia : 

 Basal clasp segment moderately long ; terminal clasp segment short, stout ; 

 dorsal plate deeply and triangularly emarginate, the lobes tapering to a 

 narrowly rounded apex ; ventral plate tapering, broadly and very slightly 

 emeurginate, almost truncate. Harpes long, slender, minutely denticulate 

 apically. 



Female: Length, 1.25 mm. Antennae dark brown; 19 segments, 

 the fifth with a length three-fourths its diameter, the terminal segment 

 subglobose. PcJpi nearly as in the male, except that the third and fourth 

 segments are relatively stouter and the fourth somewhat shorter. Meso- 

 notum dark reddish brovra, the submedian lines sparsely white-haired. 

 Scutellum reddish brown, white-scaled apically, postscutellum darker. 

 Abdomen dark brown, the basal segment, small submedian and narrowly 

 triangular lateral spots, white. Ovipositor yellowish ; venter suffused with 

 whitish scales. Coxae dark brown, femora suffused wath whitish scales 

 basally, yellowish brown apically ; tibia dark brown with a narrow, white 

 annulation basally, a broken, broad one just before the middle and a nar- 

 rower one apically ; tarsi a nearly uniform dark browTi, the ventral surface 

 suffused with white scales. Pulvilli as long as the unidentate claws. 

 Ovipositor as long as the body, bascilly with submedian oval patches of 

 broad scaJes, subapically with submedian groups of about eight mode- 

 rately slender, chitinous hooks ; terminal lobes narrowly oval, thickly 

 setose. Type C. a2505. 



The peculiar markings of the tibiae in the female appear to be charac- 

 teristic though somewhat variable. 



LoDopteromyia venae, new species. 



Greenish, pouch-like vein galls are locally very abundant upon certab 

 thorn bushes, Cratcsgus species at Nassau and have been recorded from 



