534 SOME NEW AND LITTLE-KNOWN EXOTIC THYSANOPTERA 



Sense-cones rather long, a pair on each of the joints three to 

 six. Mouth-cone rounded at tip, scarcely reaching halfway 

 across prosternum. 



Prothorax strongly convex, about five-eighths as long as 

 broad, all spines present, and, excepting the anterior marginal 

 pair, moderately prominent, the pair at posterior angles being 

 the longest. Pterothorax nearly as long as broad, sides of 

 metathorax gently narrowing to base of abdomen. Wings 

 present, reaching to base of the sixth abdominal segment. 

 Legs stout ; intermediate and hind femora slightly thickened, 

 and each set with a series of minute spines along the outer 

 margin ; fore-coxa with a prominent spine : fore-femur in- 

 crassate; tibia short and stout; and tarsus armed with a 

 sharp tooth. 



Abdomen gradually tapering from base to tube. Tube 

 about twice as broad at base as at tip, three times as long as 

 broad at base, and nearly as long as the head ; narrowed from 

 the anterior third to apex. Terminal hairs about five-eighths 

 the length of tube, and those on ninth segment as long 

 as tube; other abdominal bristles comparatively long and 

 slender. 



$. The fore-femur in the male is very strongly incrassate, 

 the tibia is very short and stout, whilst the tarsal tooth is also 

 much stronger than in the female. 



Type. — In the Leyden Museum. 



Habitat. — Both sexes from the young top-leaves of the 

 Waringin tree, Semarang, Java (E. Jacobson). 



Phloeothrips longitubus sp. n. (PI. xiv., figs. 20-21). 



$. Length 2*95 mm.; breadth of mesothorax 0-49 mm. 



General colour brown ; antennae, excepting basal and part of 

 second joint, all tarsi, fore-tibiae and tips of intermediate and 

 hind tibiae clear yellow. 



This species is very like I^. similis, but apart from the colour 

 distinctions it differs in many pomts. 



