596 Mr. R. S. Bagiuill on new Thrjsanoptera. 



twice the length of the prothorax ; clieeks very slightly- 

 converging posteriorly. Eyes occupying dorsally about one- 

 third the length of head, finely facetted ; postocular bristles 

 long, pointed. Ocelli large, placed well forward, the posterior 

 one situated at the apex of raised vertex and forwardl)' directed. 

 Mouth-cone short, broadly rounded, and reaching about 0'65 

 way across the ])rosternum ; labial palps rather long. An- 

 tenrse about twice the length of the head, seven-jointed, joints 

 3 to 5 claviforra and 3 and 4 practically subequal. Relative 

 lengths and breadths of joints 3 to 5 : — 



13T14 : 12 : 11 : 10" 



Joint 6 constricted apically and truncate distally, and 7 elon- 

 gate, oviform. 8ense-cones long and slender. 



Prothorax strongly transverse, more than 25 times as broad 

 as long ; all prothoracic setae present, long and pointed, the 

 postero-marginal pairs about 0"6 the length of prothorax. 

 Fore-legs incrassate, tarsal tooth stout ; single prominent seta 

 on each coxa. Pterothorax scarcely broader than the breadth 

 across fore-coxa?, about 0'875 as long as broad. Wings 

 reaching to abdominal segment 8 ; cilia smoky brown. Abdo- 

 men slightly broader than pterothorax, elongate, with segments 

 strongly transverse ; segments 7 to 9 roundly narrowed to 

 base of tube. Tube a little longer than the head, twice as 

 broad at base as at apex ; more sharply (and somewhat 

 roundly narrowed) from about middle. Terminal hairs only 

 about 0*4 the length of tube. Abdominal bristles yellowish, 

 pointed, some on 7 to 9 long, the longest on 9 being about 

 0*8 the length of the tube. 



Sharply separated from the only other desciibed species, 

 A. megacephalus. Hood, by its coloration, larger size, the 

 longer antennal joints 3 to 7, the shorter pionotum and 

 mouth-cone, the long tube, and nature of chaitotaxy. 



Hah. W. SaeawaK; 1 (^ , Mt. Matang, Dec. 11th, 1913 

 {G. E.Bryant). 



Family Ecacanthothripidae. 



There are evidently several species of Ecacanthoihrips, and 

 all available material requires re-examination. E. bryanti, 

 Bagn., E. crasticfps, Karny, E. sanguineus (Bagn.), and 

 E. steinskyi (Schmufz), have already been described; but in 

 Mr. Bryant's ve)y interesting Burnean material is a series of 

 Ecacanthothrlps characterized by the simple fore-coxte of the 

 male. There appears to be three species — a iimall one, a 



