362 On some Thysanoptera {Tuhuh'fera) from Papua. 



thrips. To meet the case I have slightly modified the above 

 diagnoses, as it would be presumptuous to erect a new genus 

 on such slight grounds. 



Acanthothrips sanguineus, sp. n. (PI. XV. fig. .1.5.) 



(^ . Length 29 mm. 



General colour bright red, coxa (excepting fore pair, wliich 

 are red) and all femora stone-coloured, and all tibise and 

 tarsi testaceous. 



Head at least one and one half times as long as wide, not 

 much longer than prothorax. Cheeks gradually widening 

 behind eyes and narrowing to the neck ; set with three con- 

 spicuous lateral wart-set spines, two anterior and one posterior, 

 and with smaller anterior spines above the extreme lateral 

 row. Eyes fairly large and finely facetted. Ocelli on raised 

 vertex, large, posterior pair above the centre line of eyes. 

 Antennce approximate, scarcely twice the length of head ; 

 testaceous, the three basal and two apical joints dark, joints 4 

 to 6 suffused near apex with brown. First joint cylindrical, 

 second roughly globular, third obconical, dilated and much 

 broader than the others, as long as the two basal joints 

 together; fourth clavate, as long as third but much narrower; 

 fifth clavate, slightly shorter than fourth; sixth to eigiith 

 almost filiform. Spines and sense-cones lightly coloured, 

 long and slender. 



Prothorax about two-thirds the length of head, widening 

 rapidly to beyond middle and then more gradually to base. 

 Surface roughened and dull, a few rather large rounded-off 

 elevations unevenly scattered over dorsal surface. Ptero- 

 thorax wider than prothorax. Wings long and slender. Legs 

 fairly long; fore femora much broadened and each armed 

 with a long, sharp, and slightly curved tooth from the base 

 within ; fore tibiae bent outwards at base, rather long and 

 slender, and thickened towards apex ; tarsus armed with a 

 sharp tooth. Hind and intermediate legs comparatively 

 long and slender. All femora set with minute spine-sjt 

 warts. 



Abdomen much depressed, broadened laterally, and con- 

 verging gradually from sixth segment to base of tube. 2'uhe 

 little more than one-half the length of head, hairs encircling 

 tip iihort. Abdominal spines rather short and blunt. 



Type. One male in British Museum (ex coll. ISaunders). 



had. Dorey, New Guinea {Wallace). 



