Mr. R. S. Bagnall on new Thysanoptera. 291 



Protliorax witli tlie bristles at angles set on warts, the 

 front pair set directly forward. Fore-femur not strongly 

 incrassate, with a few long colourless and faintly knobbed 

 bristles. Fore-tibise yellowish-red ; intermediate tibire 

 shaded to yellow distally and hind-tibiae yellow at knee 

 and distal half. 



Abdomen long and slender ; tube 0"9 the length of head ; 

 biistles on segment 9 about 0*6 the length of tube. 



I have not yet had the opportunity of re-examining the 

 type of Mecynothrips simplex, 13agn. (in the British Museum), 

 which I think will fall into this genus. M. simplex has the 

 fore-femora strongly inflated, shining, sparingly setose, and 

 armed with a short tooth at apex within, and the tube is 

 shorter in comparison with the length of head. 



Ti/pe. In Hope Collections, Univei-sity Museum, Oxford. 



Ilab. Ceylon : Peradeniya, two examples, almost certainly 

 males, swept from bushes {E. E. Green, '^o. 2961). They 

 were in association with Ecacanthothrips sanguineus, Bagn. 



Family MegathripidaB. 

 Siphonothrips hrevis, sp. n. 



^ . — Forma aptera. 



Length 2*1, breadth of mesothorax about 0*38 mm. 



General colour dark black-brown, abdomen darker than 

 the head and. protliorax. All femora brown, the inter- 

 niediate and posterior pairs light yellowish-white basally, 

 and lighler at extreme base; all tibife yellow, tarsi also 

 yellow with a dark patch on second joint. Antennae with 

 first two joints dark brown ; second lighter apically j 3 yellow, 

 lightly tinged with brown near apex ; 4 yellow, apical fourth 

 brown ; 5 brown, with basal half yellow (6 to 8 broken off in 

 type-specimen, 7 and 8 at least presumably totally brown). 



Head 1*8 times as long as broad across eyes, 2*8 times as 

 long as the prolhorax, but only very slightly (0'08) longer 

 than the tube. Cheeks very slightly incurved behind eyes 

 and thence gently arcuate to base; a few minute genal 

 spines. Vertex slightly produced beyond eyes, with a pair 

 of rather long bristle:-, which do not reach to apex of lirst 

 antennal joint. Eyes small, occupying laterally 0*2 the 

 length of the head, finely facetted; ocelli minute. Mouth- 

 cone reaching across prosternum, rounded at tip. Antennas 

 about twice as long as the head (first 5 joints=l'5 times 



