Mr. R. S. Bagnall on new Thysanojytera. 319 



Dinurothrips ru(Iierfordi\ sp. n. 



? . — Leiigtli about 1"1 mm. 



Dorsal surface deeply reticulated. 



Yellow, shaded with reddish- to chestnut-brown, deepest 

 towards sides of head, thorax, and abdomen. Fore-tibise 

 yellow, femora brownish ; intermediate femora and tibiae 

 brown, yellowish distally ; hind-femora o^j-eyisli-brown, tibiae 

 yellow. Antennse much as in D. hookeri, Hood, yellow, 

 second joint deeper in shade, greyish-brown apically. Fore- 

 wings greyish, yellow in line of veins, with an indistinct 

 brownish band near base and across the seventh eighth, and 

 other scarcely defined bands ; seiae stout, daik brown basally 

 to yellow (in some) at points; hind-wing with brown median 

 vein. 



Head about twice as wide across eyes as long, longer than 

 the prothorax. Cheeks roundly narrowed posteriorly and 

 constricted abruptly at base ; ex|)lanate, the shelf-like mar- 

 gins projecting somewhat distally in the curve of tiie outer 

 posterior margin of the eye. Eyes prominent, occupying 

 about 0*5 the length of the head, coarsely facetted and not 

 pilose; space between them almost twice the width of the 

 eye. Ocelli and antennpe almost as in D. hookeri. Vertex 

 also with shelf-like margin. Maxillary palpi apparently 

 2-jointed. 



Prothorax with broad, wing-like, explanate, lateral mar- 

 gins, anteriorly wider and nioie broadly rounded than 

 posteriorly. Fronotum proper transverse, not as broad as the 

 head, with a series of lateral and antero-marginal setas in 

 pairs, and a pair of pre-basal ones, one on each side of the 

 median line. 



Pterothorax massive, twice as broad as the pronotum 

 proper (<'. e. excluding the explanate margins) ; metanotuni 

 narrower than the mesonotum, the latter sharply narrowed to 

 juncture with abdomen, which is waist-like. Wings reaching 

 to abdominal segment 8, slender and linear; fore- wings not 

 upwardly curved distall}', veins running close to margins ; 

 setai on costa stout and widely spaced, only 8 or 9 ; those on 

 veins both longer and stouter; upper vein with 2 near base, 

 1-t-l in second fourth and 1 + 1 + 1 in distal third; lower 

 vein with 8 setae, 2 near base and then 1 + 1 + 3+1. Top 

 fringe somewhat sparse, lower long and wavy. 



Abdomen elongate, slightly broader than the pterothorax; 

 surface of each segment anteiiorly and laterally deeply 

 reticulated; ninth partially received into eighth; tenth 



