THE ANNALS 



AND 



MAGAZINE OF iNATUlUL IIISTORV. 



[KIGHTH SI<:RIES.] 

 No. 99. MARCH 1916. 



XVIII. — Brief Descriptions of new Thysanoptera. — VII. 

 By Richard S. Bagnall, F.L.8. 



Suborder T t: H E B K A N T i A. 



Family Thripidae. 

 Ileliothrips frontalis, sp. n. 



H. hcemorrhoidalis groiij). 

 ? . — Length about 1"15 mm. 



Head, prothorax. pteiothorax, and apex of abdomen golden- 

 brown, shaded to brown laterally; frons brown; legs yellow, 

 femora slightly deeper in coloration than the tibiae, especially 

 the intermediate pair. Body, excepting apex, chestnut- 

 brown, with a sublateral pair of black rings or " eye-spots" 

 on tergites 3 to 7. Antennas broken in the unique specimpn 

 except the first two joints, which are light yellow. Foro-wing 

 clouded with yellowish-brown at base and with the veins in 

 the third sixth (or more) and the fifth sixth dark brown ; 

 veins otherwise except at extreme apex (distal sixth), where 

 they are colourless, yellowish to light yellowish-brown. 



Head subquadrate, strongly reticulated, about 0"8 as long 

 as broad across eyes ; cheeks very slightly arched behind 

 eyes, and then as faintly sinuate or convergent posteriorly. 

 Eyes small, only occupying about one-tliiid the length of 

 the head, and the space between them at least 2'5 times the 

 width of one of them. Antennas .... Vertex produced 

 Ann. d' Mag. X. Hist. Ser. 8. Vol. xvii. 15 



