Mr. R. S. Bagnall on new Thysanoptera. 597 



medium-sized one with all tibi^ clear yellow, and a black 

 one. I now describe the first two. 



Ecacanthothrips coxalis, sp. n. 



Length, ^ 1-75, ? 2vl mm. 



Tills species (and the following one) has the fore-coxEe in 

 the c? simple, and in the shape ot the tore-femora and teeth 

 comes nearest to JE. steinfiki/i (Schmutz), but is only very 

 minutely pilose. Colour dark reddisii-brown, including the 

 hind and intermediate libise ; fore-tibiffi greyish-yellow, with 

 outer and inner margins brownish. Antennae just about 

 2*0 the length of head, with joints 1 black, 2 to 4 entirely 

 chestnut-brown, 5 to 8 lighter grey-brown with basal halves 

 of 5 and 6 yellow, 4 broadly claviform, 5 much narrower 

 and 3 to 5 subequal in length. 



Head inclined to be broadly subcarinate dorsally, 1'65 

 times as long as broad ; at least two stout genal spines on 

 each side, postocular bristles not as long as the eyes, and a 

 pair of knobbed subgenal setas as in hryanti but much 

 shorter. 



Tube short, very stout ; approximately 0*45 the length of 

 the iiead. 



Hah. W. Sarawak, neighbourhood of Mt. Matang; 2 ? s 

 (1 to light), December 1913, and 1 S, Febiuary 1914 

 [G. E. Bryant). 



Ecacanthothrips Jlavipes, sp. n. 



(J. — Length about 2"6 mm. 



Very dark brown, almost black, shining; all tibiae and 

 tarsi clear yellow. Antennal juints 4 and 5 yellow, shaded 

 to brown basally and distally ; joints 4 and 6-8 more slender 

 than in coxalis ; 4 and 5 subequal and each apparently longer 

 than 3. 



Head much as in coxalis^ with the cheek-spines stouter ; 

 postocular bristles longer and the subgenal setse distinctly 

 shorter than in that species. Tube stout, about 0*6 the 

 length of the head. 



Easily separated from coxalis by its larger size, distinctive 

 coloration ot legs and antenna?, longer tube, and the stouter 

 fifth and more slender fourth antennal joints. The setcc on 

 fore-femora are not quite so minut6, and the lower tooth is 

 sharper and not so stout. 



Bah. W. Sarawak, Mt. Matang, at 1000 feet ; one on a 

 white flower and three on dead bark, December 1913 (^O. E. 

 Bryant). 



