Mr. R. S. Bagnall on new Thysanoptera. 275 



Pronotum transverse, setse at each hind angle colourless, 

 blunt, and about 0'6 the length of the pronotum ; others 

 apparently vestigial. Wings well-developed, constricted 

 near middle, clear, and tore-wings without duplicated cilia. 

 Cilia comparatively few and not close. Fore-tibiae normal, 

 fore-tarsus with a very small tooth. 



Abdomen somewhat heavy, as broad as or very slightly 

 broader than the pterothorax, narrowing gently posteriorly. 

 Tube about 0'7 the length of the head ; 0*6 as broad at 

 apex as at base and more than twice as long as broad at base ; 

 chitinous " rod " long. Apical hairs weak, colourless distally, 

 about 0'8 the length of (he tube. Abdominal bristles mode- 

 rately long, colourless. 



<$ . — More slender, Fore-legs rather long and not strongly 

 incrassate and fore-tarsal tooth (tucked under the prothorax 

 in the unique preparation) apparently small. Spines at pos- 

 terior angles of abdominal segments minute except on 8 and 9. 



Recognised by the colour, the clear wings, the absence of 

 duplicated cilia in the fore-wings, and the apparent paucity 

 of pronotal macrochaeta?. II. nigricornis Bagn. (S. Africa), 

 is a much larger and stouter insect, with closely ciliated 

 wings. 



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



Rob. South Afeica, Pirie, 4 ? ? and 1 $ . 



Podothrips varicomis, sp. n. 



$ . — Slender; length about 1*1 mm. 



Colour deep chestnut-brown ; fore-tibise and fore-tarsi 

 yellow. First two antennal joints concolorous with head, 

 3 light yellow with the distal third clouded with light grey- 

 brown, 4 also yellow with the distal two-thirds light grey- 

 brown ; 5 and 6 light brown, basally light yellowish, 7 and 8 

 grey-brown. Wings clear basally and distally, but medianly 

 clouded with a smoky-brown. 



Head 1*2 to 1*3 times as long as broad, cheeks faintly 

 arched and evidently slightly convergent posteriorly ; ocelli 

 well foiward, with the anterior one overhanging. Postocular 

 spines well back. Antennae not quite twice as long as the 

 head, segments 3 and 4rvbroadly clavate and much broader 

 than the following ; relative lengths of joints 3 to 8 approxi- 

 mately as follows : — 39 : 40 : 37 : 35 : 36 : 24. Pronotum 

 about 0'9 the length of the head, transverse ; all setae 



