196 NEW GENERA AND SPECIES OF THYSANOPTERA 



Prot}io7'-ax one and four-fifths as wide at base as long, 

 slightly convex and smoothly widened at base ; frontal edge 

 margined and broadly emarginate. Posterior coxae armed 

 with three stout and conspicuous spines ; femora swollen and 

 studded with a number of small spine-set warts, and with a 

 group of stronger spines at the outer edge of each near base ; 

 tarsal tooth prominent. Pterothorax almost square, not quite 

 so wide as width across fore-coxae ; mesothorax closely joined 

 to prothorax. Intermediate and posterior legs long; femora 

 slightly swollen, and each armed with a row of strong and 

 rather long spines on the upper edge. Wings only reaching 

 to the seventh abdominal segment. 



Abdomen about twice the breadth of head, oblong-ovate, 

 eighth and ninth segments tapering abruptly to tube. Tube 

 less than two-thirds the length of head, twice as broad at 

 base as at apex, sides straight. Abdominal spines com- 

 paratively long and knobbed. 



Type — In British Museum (ex. coll. Saunders). 



Hab. — Dorey, New Guinea ( Wallace). 



Genus LEUROTHRIPS* nov. 



Head at least twice as long as the width immediately 

 behind eyes. Cheeks swollen, widest at posterior third. Eyes 

 small. Ocelli wanting. Antennce as long as head, com- 

 paratively stout. Mouth-cone shorter than its breadth at base, 

 not reaching to base of prosternum ; labrum blunt. 



Prothorax only slightly wider than head. Legs long; fore- 

 femora only slightly enlarged ; fore-tarsi armed. Wings absent. 

 Abdomen flat. 



Species of medium size. 



Type — Leurothrips albomaculata mihi. 



Table of species : — 



I. Size larger ; head ihrQe times the length of /r^///(7r(7;r ; abdomen 

 ovate, black with white markings. 



albomaculata sp. nov. 

 II. Size smaller; head twice the length oi prothorax ; abdomen 

 linear, unicolorous, black. linearis sp. nov. 



* Leuro- =flat. 



