SOME NEW AND LITTLE-KNOWN EXOTIC THYSANOPTERA 535 



The head is widened posteriorly; the post-ocular bristles 

 are shorter and placed further behind the eyes ; the antenna 

 has the second joint shaded with yellow, is not tinged at 

 apex, is more elongate and slender, and is nearly twice the 

 length of the head. The mouth-cone reaches more than half- 

 way across prosternum. 



The prothorax is less than two-thirds the length of the 

 head, nearly twice as broad as long, and appears to have but 

 two prominent pairs of bristles, namely a very long one at 

 each posterior angle, being three-quarters the length of the 

 prothorax, and the posterior-marginal pair. The hind and 

 intermediate legs are not so stout, whilst the fore-legs have 

 the femora only slightly swollen and the fore-tarsal tooth 

 minute. 



The tube is exceptionally long, being almost four times as 

 long as broad at base, and one and two-third times as long as 

 the head. The terminal hairs are five-eighths, whilst those 

 on the ninth abdominal segment are seven-eighths the length 

 of the tube. 



Type. — In the Leyden Museum. 



Habitat. — On the young top-leaves of the Waringin tree, 

 Semarang, Java (E. Jacobson). The specimens occurred in 

 company with Panurothrips gracilis, to which species it bears 

 a strong superficial resemblance. 



Genus ECACANTHOTHRIPS Bagnall, 1908 



Acanthothrips Bagnall (nee Uzel), Ann. and Mag. of Natural 

 History, Ser. 8, i., p. 361, April ist, 1908. 



Ecacauthothrips Bagnall, Annales de la Soc. Ent. de Belgique, 

 lii., p. 349, Dec. 31st, 1908. 



Ormothrips Buffa, "Redia," v., fasc. 2, p. 166, March ist, 1909. 



Ecacanthothrips sanguineus (Bagnall). (PI. xiv., fig. 22). 



Ormothrips sanguineus Buffa, " Redia," v., fasc. 2, p. 167, 

 pi. viii., figs. 10-13. 



Buffa records both sexes of this species from Sumatra, Is. 



