THYSANOPTERA 689 



fore-femora yellowish-brown, lighter apically ; all tibiae and tarsi yellowish, hind and 

 intermediate tibiae shaded with brown. Antennae unfortunately broken in the type 

 specimen. 



Head with cheeks slightly swollen behind the eyes, one and one-third times the 

 length of prothorax. 



Prothora.x flat, transverse, nearly twice as broad as long ; mid-lateral bristles very 

 long, those at hind angles, and the posterior-marginal pair respectively next in order of 

 length ; pair at anterior angles obsolete. Wings vestigial. Fore-legs incrassate ; 

 stouter than is usual in the female. 



Abdomen almost as In D. lanaiensis, but not so broad as in the female of that 

 species, and furnished with rather long bristles somewhat similar to those in D. angiis- 

 ticeps. 



Tube long and slender, minutely and sparsely setose ; almost as long as the head, 

 three and one-half times as long as broad at base, where it is a little more than one and 

 one-half times as broad as at tip. 



^ unknown. 



Apart from the form of the head and the long narrow tube, this species may be 

 readily distinguished by the light coloration of the latter segment. 



Hab. Oahu ; one female, Kaala Mts., over 2000 ft., January 1893 (Perkins, 

 No. 56). 



(7) Dolerothrips intermedins, sp. nov. 



Plate XIX. figs. 7 — 9. 



^. Length 2'o mm., breadth of mesothorax o'45 mm. 



Colour dark chestnut-brown, fore-femora lighter, yellowish at apex, and all tibiae 

 yellowish-brown, lightest at knees and with hind and intermediate pairs shaded darker 

 in the middle. 



Antennae stout, twice as long as the head, third joint yellowish shaded with brown 

 near apex, basal third of fourth and fifth yellow ; joints three to five clavlform, sixth 

 narrowing from tip to base and six to eight closely jointed. 



Head and prothorax as in D. ovains, the latter irregularly foveolate on each side of 

 disc ; post-ocular and prothoracic bristles shorter, mid-lateral pair recurved. Fore-legs 

 somewhat stouter than in ovatus. 



The abdomen Is only very slightly broader than the width across the fore-coxae, 

 narrowing to tube from the third segment. The nature of the chitin appears to be 

 tougher and stronger than in ovatus, lanaiensis and the other species, excepting 

 D. barbatns, and has a duller appearance. Tube stout, three-quarters the length of the 

 head and about twice as long as broad at base and quite twice as broad at base as 

 at the extreme apex. Abdominal bristles moderately short, shorter than in ovatus. 



