28 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



several slender erect spines. Those at the tip of the tibiae being more 

 conspicuous than the others upon the segment. The fore coxae also 

 bear an erect spine on the outer side. All tarsi with a black spot at 

 the tip within. 



Abdomen broadly joined to the thorax, sides nearh' parallel to the 

 eighth segment. Eighth and ninth segments converging abruptly to 

 the tube. On posterior margin of each dorsal segment one to eight 

 stands two spines, the outer one of which stands very near the lateral 

 margin. On the first two segments only the inner spine is long and 

 conspicuous, on the other segments both the spines are conspicuous. 

 The ninth segment on its posterior margin bears a circlet of six long 

 spines. The tip of the tube bears a circlet of six long spines and a 

 similar number of shorter ones. All spines on the body are yellow 

 and sharp pointed. A narrow dark brown line crosses the dorsum of 

 segments three to eight. Tube as long as the head, and twice as broad 

 at the base as at the tip, its sides straight. Thorax and abdomen 

 suflFused with dark purplish pigmentation. 



Described from one female taken in a stool of broom sedge. 



Named for Dr. W. E. Hinds in recognition of his valuable work 

 upon this order. 



LocaUty, Clarksville, Tennessee, October 17, 1910. 



A. C. Morgan, collector. 



Type.— C&t. No. 15732, U.S.N.M. 



This species differs from its congeners in having the prominent 

 spines upon the prothorax and body acute instead of blunt, in having 

 a narrower body in proportion to its length, and in having the seg- 

 ments of the antennae roughened. 



TRICHOTHRIPS FLAVICAUDA. new species. 



Figs. 50-54. 



Female. — Apterous: Length 1.1 mm. General color brown, with 

 basal joints of antennae, nuith and tenth abdominal segments and all 

 tarsi yellow. Thorax and abdomen with considerable very dark 

 reddish bown hypodermal pigmentation. 



Head: Length about 0.18 mm., width about 0.17, general shape 

 rectangular, front slightly produced both above and between the 

 antenna, sides nearly straight and parallel; the dorsal and lateral 

 surfaces bear a few minute spines; dorsal surface faintly transversely 

 striate-reticulate; postocuiar bristles long, slender, and sharply 

 pointed. Eyes small. OcelU wanting. Antennae eight-segmented, 

 all segments free, twice as long as the head; segments gradually 

 decreasuig in width from the base to the tip. Relative lengths of 

 segments as follows: 



