Mr. R. S. Bagnall on new Thysanoptera. 271 



species, however, on account of the very different colouring 

 of the legs, the shorter antennas, and the form of the fore- 

 part of the head. 



Type. In Coll. Bagnall, University Museum, Oxford. 



Hah. India, N. Malabar, on arrowroot-leaves ; 1 ? , Sept. 

 1918 (Ramakrishnd). Reg. 337. 



b. Sixth antennal joint divided. 



Euthrips cameroni, sp. n. 



? . — Length 1*25 mm. 



Belonging to the section of the genus containing E. 

 obscurus (Miill.) and E. secticornis (Tryb.), both of which 

 are known from North America. 



Head yellowish, but largely shaded with dark grey-brown ; 

 pronotum yellow more lightly shaded with grey-brown ; 

 prothorax yellowish, but mostly shaded with brown. Abdo- 

 men uniform chestnut-brown, the segments 9 and 10 darker; 

 legs yellowish, lightly shaded with grey-brown. First an- 

 tennal joint yellowish, shaded with grey-brown, second 

 brown ; third yellow ; fourth light grey-brown, basally 

 yellow ; 5 to 8 dark chestnut-brown, 5 with extreme base 

 yellowish. Wings light greyish-yellow. 



Head as long as broad ; eyes occupying about 0"45 the 

 total length of head ; ocelli with deep crescentic crimson 

 hypodermal pigmentation. Antennas not quite twice as long 

 as the head ; joint 3 longer and narrower than 1, 2, 4, or 5 

 and as long as 6 (with divided part) and much narrower ; 

 fusiform and pedicellate. Joints 2 to 8 broadly as follows *: — 

 9 : 22 (with pedicel) : 18 : 15 : 22 (with divided part) : 4 : 5. 

 Pronotum subquadrate, as long as the head and a little broader 

 near base than long. Wings well-developed, spines of fore- 

 wings minute, apparently few and sparse on upper vein, 

 about 10 on lower vein. 



Abdomen elongate-ovate, tapering somewhat apically ; 

 tenth segment open dorsally, bristles long and strong. 

 Fringe of posterior margin of tergite 8 moderately long 

 and even. 



cJ . — A male example is mounted laterally. It is smaller 

 than the ? and apparently lighter in colour. The special 

 series of spines on tergite 8 very stout as in Physothrips 



* Unfortunately mounted at an angle. 



20* 



