700 FAUNA HAWAIIENSIS 



side of the mid-line at the posterior margin. One short stout forwardly-directed spine 

 at each anterior angle, and two similar though slightly longer downwardly-directed 

 lateral spines. 



Mesothora.x widely rounded to juncture of the metathorax, a short spine at each 

 humeral angle ; metathorax strongly transverse and only about three-quarters the 

 length of mesothorax. Legs moderately stout and strongly spinose, each coxa armed 

 with one or two curved spines, fore-femora short and broad ; bristles long on outer 

 edge of fore-tibia and all forwardly curved. Hind and intermediate tibia with a series 

 of stronger spines for two-thirds the length within, and ending with a couple of very 

 stout spines at the tip within ; first joint of tarsus armed with a couple of short stout 

 spines near the tip within, and a long and more slender spine at base without. Wings 

 considerably over-reaching tip of abdomen ; both longitudinal veins of the fore-wing 

 armed with a series of regularly placed bristles each consisting of about 1 7 spines ; 

 hairs composing posterior fringes long, slender and wavy. 



Abdomen slightly wider than mesothorax, oblong-ovate, strongly narrowing from 

 the seventh segment to tip, tenth segment sharply contracted about the middle ; spines 

 at tip of abdomen arranged as in Thrips tabaci, long and strong. 



Z- Apart from the sexual characters the t differs by its much smaller size, being 

 only about o'65 mm. in length ; totally yellow head and thorax with a reddish-brown 

 tinge ; antennae with a greyish-brown tinge ; legs yellowish-white ; abdomen narrower 

 and shorter, wings long, considerably over-reaching the tip of abdomen. 



Hab. Kauai, Molokai, Hawaii. — Hawaii, three females and one male, Kilauea, 

 July 1895 (Perkins, No. 575), one female (No. 686). Kauai, one female Kauai on a 

 high plateau, August 1896. Molokai, Mts., 4000 ft., one female, September 1893 

 (No. 163), and two females, Kalal, August 7th, 1893 (No. 172). 



Genus ScoLOTHRiPS Hinds. 



(i) Scolothrips 6-iiiacii/atiis, Pergande. 



Thrips b-maculata Pergande, Trans. St Louis Acad., v. p. 543, 1894. 



Thrips pallida Beach, Proc. Iowa Acad. Sciences (1895), iii. pp. 226 — 227, 1896. 



Scolothrips 6-maculaia Hinds, Proc. U.S. Nat. Museum, xxvi. pp. 157 — 158, 

 PI. IV. figs. 42 — 45, 1902. 



Mr Dudley Moulton tells me (in litt. October 24th, 1910) that he has specimens 

 of this species from Honolulu. It is a very distinct form and the genus is easily 

 separated from Eulhrips by the presence of six pairs of prothoracic bristles, all very 

 long, strong and sub-equal in length, and by the almost obsolete fore-fringe of the fore- 

 wing, the cilia of which are very much shorter than the extremely long spines on the 

 fore-margin. 



