THYSANOPTERA 699 



Hab. Kauai, Hawaii. — Kauai, i %, Halemanu, 4000 ft., May 25th, 1895 (Perkins, 

 No. 525); 2 $, Hawaii, one from Kilauea, August 1896 (No. 656), and the other taken 

 by sweeping, Kona, 2000 ft., September 1892 (in alcohol). 



(2) Hcliothrips riibrocinctus, Giard. 



Physopns rubrocincta Giard, Bull. Soc. Ent. France, 1901, pp. 263 — 265. 



Hcliothrips rubrocinctus Franklin, Proc. U.S. National Museum, xxxiii. p. 719, 

 PL LXIV. figs. 10 and 14, PI. LXV. figs. 17, 20 and 21, 1908. 



In a recent consignment ot named Thysanoptera, mostly co-types, Mr Dudley 

 Moulton has sent me larvae and imagines of H. rubrocinctus labelled Honolulu, where it 

 occurs on mango. H. rubrocinctus, so named because of the bright red band of hypo- 

 dermal pigment crossing the base of the abdomen on the upper side in the larval and 

 nymph stages, is a very injurious species and is reported as a great pest on cacao in 

 the West Indies ; it is found also on Cashew tree, the guava, Liberian coffee (see 

 Franklin) and mango as well as other plants. 



Franklin fully describes this species, which is very evidently not an endemic form, 

 and also its earlier stages. 



H.\B. Oahu ; Honolulu, on mango, June loth, 1909. 



Thrips L. 



(i) Thrips niiiltispinuSy sp. nov. 



Plate XVII. figs. 15 — 20. 



%. Length i 'o to i'3 mm. Breadth of mesothorax about 0*24 mm. 



General colour brown, legs lighter and fore-tibiae and all tarsi yellow. Antennae 

 uniform brown with the third joint in one specimen apparently lighter. 



Head distinctly transverse, cheeks slightly arched behind the eyes and frons faintly 

 arcuate between them. Eyes large and coarsely faceted, sparingly but strongly pilose ; 

 pigment deep black. Ocelli large, widely separated, posterior pair above a line drawn 

 across the posterior margin of eyes. Two strong bristles between the anterior ocellus 

 and posterior pair, and another equally long bristle behind each eye. Cheeks furnished 

 with a few short bristles. Maxillary palpus three-segmented. Antennae moderately 

 stout ; joints three and four sub-equal with the outline laterally wavy, fifth smaller than 

 three or four and five-eighths the length of sixth, and jointed with a broad surface to 

 base of sixth , the sixth roundly, narrowing to tip ; style short, being only about one- 

 quarter the length of the sixth joint, blunt at apex. 



Prothorax decidedly longer than dorsal length of head which latter is considerably 

 retracted into prothorax ; margins seemingly slightly depressed. Two long brisdes at 

 each posterior angle ; moderately long anterior-marginal pair and similar pair, on each 



