NO. 1010. NORTH AMERICAN THYSANOPTERA— HINDS. 209 



tie larger than the fourth, and with about twelve transverse lines, there 

 being- about eight on the fourth joint, from the end of which projects 

 a remarkable tubercle, as seen in the figure. The fifth joint is square 

 at the end, with about eleven transverse lines, and throe or four stout 

 hairs externally; sixth joint minute and spherical, while the seventh is 

 three times as long as the sixth, and is finely striated, and with four 

 unequal stout hairs. It is just twice the length of the female, meas- 

 uring 0.08 inch." 



THRIPS TRIFASCIATUS Ashmead. 



'■'•Female. — Length O.S mm. Light brown; eyes strongly faceted, 

 purplish-brown in certain lights; three basal segments of the abdomen 

 above, dark brown; segments 4, 5, and white; apical segments light 

 brown, the sutures dusky; legs, except hind femora toward tips, white; 

 wings linear, strongly fringed, without nerves, the ground color ])rown 

 or fuscous, with three transverse white bands, i. e., the front wings 

 have a white band at base, another at about two-thirds their length, 

 and with the apices white. 



''^ Ilahltat. — Near Utica, Mississippi." 



THRIPS SECTICORNIS Trybom. 



I have been unable to see the description of this species which was 

 pul)lished in Ofversigt af k. Vetenskaps-iVkademiens. Forhandlingar, 

 18U6, page 620. 



PHLCEOTHRIPS MALI Fitch. 



"Tiiis insect measures only six-hundredths of an inch in length and 

 one-hundredth in width. It is polished and shining, and of a blackish 

 purple color. Its antennse, which are rather longer than the head and 

 composed of eight nearly equal joints, have the third joint of a white 

 color. The abdomen is concave on its upper side, and is furnished 

 with a conical tube at its tip which has a few bristles projecting from 

 its apex. The wings when folded are linear, silvery-white, and as 

 long as the abdomen; they are pressed closely upon the back, spread- 

 ing asunder at their bases, and appear like an elongated Y-shaped 

 mark. Viewed from above, the head is of a square form, longer than 

 wide. The first segment of the thorax is well separated from the 

 second, is broadest at its base, and gradually tapers to its anterior end, 

 where it is as wide as the head. The following segment is the broad- 

 est part of the body and square, with its length and breadth equal." 



PHLCEOTHRIPS CARYiE Fitch. 



"This insect is 0.07 long, of a deep black color and highly polished. 



Its head is narrower than the thorax and nearly square. The third, 



fourth, and fifth joints of the antennaj are longer th;in the others, 3'el- 



low, and slightly transparent; the last joint is shortest and but half as 



Proc. N. M. vol. xxvi— 02 14 



