Mr. R. S. Bagnall on new Thysanoplera. 507 



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

 oue. 1 now describe the first two. 



Ecacanthothn'ps coxalis, sp. n. 



Length, <? 1*75, ? 2*1 mm. 



Tiiis species (and th<i following one) has the fore-coxse in 

 the cJ simple, and in the shape of the tore-femora and teeth 

 comes iK^arest to E. sttiuski/i (Schmutz), but is only very 

 minutely pilose. Colour dark rcddi.sii-brown, including the 

 hind and intermediate tibiae ; fore-tibiai greyish-yellow, with 

 outer and inner margins brownish. Antennse 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 k-ast two stout genal spines on 

 each side, postncular bristles not as long as tlie eyes, and a 

 pair of knobbed subgenal setae as in bryanti but much 

 shorter. 



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

 the head. 



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

 (1 to light), December 1913, and 1 <?; February 1914 

 {G. E. Bryant). 



Ecacanthothrips Jlavipes, sp. n. 



cJ . — Length about 2*6 mm. 



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

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

 to brown basally and tlistally ; 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 setae 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 antennaj, longer tube, and the stouter 

 fifth and more slender fourth antennal joints. The setfe on 

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

 sharper and not so stout. 



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

 white flower and three on dead bark, December l'J13 (G. E. 

 Bryant). 



