Vol. 32, pp. 75-92 May 20, 1919 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



TWO NEW GENERA AND THIRTEEN NEW SPECIES 

 OF AUSTRALIAN THYSANOPTERA. 



BY J. DOUGLAS HOOD. 



The sixth volume of the Memoirs of the Queensland Museum, 

 issued December 19, 1918, contains an article by the writer in 

 which are described four new genera and twenty-four new species 

 of Thysanoptera collected by Mr. Alexandre A. Girault in North 

 Queensland, Australia. The present paper is supplementary to 

 the one referred to and, together with a brief article in the 

 Bulletin of the Brooklyn Entomological Society, Volume XIII, 

 No. 4, published in October, 1918, completes the description of 

 the new Thysanoptera which have come gradually into the 

 writer's possession through Mr. Girault's efforts. Five of the 

 following new species are from Brooklyn, New South Wales; the 

 remainder are from Queensland. All holotypes and allotypes 

 are in the writer's collection and one set of paratypes will be 

 deposited in the Queensland Museum. 



Scirtothrips australiae, sp. nov. 



Female {macropterous) . — -Length about 0.8 mm. Color straw yellow 

 (nearly white) ; abdominal segments 3-7 each with a basal transverse dark 

 line extending entirely across segment ; segment 1 of antenna colorless, seg- 

 ment 2 grayish apically, 3-8 nearly uniform light gray, 4 and 5 each with 

 a narrow, dark ring at base; fore wings nearly uniform light gray, hind 

 wings pale, with dark median line. 



Head about 1.5 times as wide as long and about 0.9 as long as prothorax; 

 cheeks nearly straight, subparallel; frontal costa about 0.8 as wide as basal 

 antennal segment. Eyes slightly protruding, about four times as long as 

 their distance from posterior margin of head, 0.8 as wide as their interval, 

 setose. Ocelli approximate, opposite center of eyes, pigment dirty yellow. 

 Antennae about 2.45 times as long as head, normal to the genus. 



15— Pboc. Biol. Soc. Wash., Vol. 32, 1919. (75) 



