NEW GENERA AND SPECIES OF A.USTRAL[AN THYSA NOPTERA—UOOD. 121 



NEW GENERA AND SPECIES OF AUSTRALIAN 



THYSANOPTERA/ 



By Captain J. Douglas Hood, M.A. 



{Of the United States Biological Survey, Washington). 



In this i)aper descriptions are given of four new genera and twentj-four new 

 species of thrijJS collected by Mr. Alexandre A. Girault in the coastal region of North 

 Queensland. As the specimens were all taken by sweeping, little data appears on 

 life habits or food plants. 



The author wishes to announce the intention of continuing his studies on 

 Austrahan Thysanoptera with the object of working gradually toward the preparation 

 of a monographic work, and to state that he will be pleased to receive specimens 

 for determination. Thrips should be collected directly into numbered tubes of 70 

 per cent, ethyl alcohol by means of a small camel's-hair brush ; and full data, giving 

 locality, date, collector, and any po.ssible notes on ecology, should always be entered 

 under a corresponding number in a note-book carried for the purpose, or, in the 

 case of flower-inhabiting species, on an envelope containing a specimen of the plant 

 from which the insect was taken. Care should be taken to use a suflicient quantity 

 of alcohol, and j)articularly to force down into the liquid a tightly fitting wad of 

 cotton, so that no air bubble will remain to flow about and break the specimens during 

 shipment. 



One set of types has been retained bj^ the author for reference in further work, 

 while another set has been deposited in the Queensland Museum. 



RfflPIDOTHRIPS CINCTUS sp. nov. 



Female {macropterous). — Length about 1-6 mm. Colour Hght brown, with 

 head, abdominal segments 6-10, and middle and hind tibiae darker ; abdominal 

 segments 4 and 5, and antennal segments 3 and 4. almost white ; fore wings white 

 with apex brown and with a transverse brown band in ajiical third. 



Head almost smooth behind eyes, vertex transversely stiiate ; occipvit and 

 cheeks with about 30 short, distinct bristles. Eyes longer than their distance from 

 back of head and slightly narrower than their interval. Ocelli about equidistant. 

 Antennas with segments 7-9 somewhat more compactly joined than the others ; 

 segments 1, 2, and 6-9 brown, 2 paler than 1 ; 3 and 4 nearly white, 4 infuscate later- 

 ally. Maxillary palpi three-segmented. 



1 With a catalogue of the North American species of Haplothrips and Liothrips. 



