THE ANNALS 



AND 



MAGAZIiNE OF NATURAL HISTORY. 



[EIGHTH SERIES.] 

 No. 99. MARCH 1916. 



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

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



Suborder T E u E B R A N T I A. 



Family Thripidae. 



Hdioth'ips frontaUs, sp. n. 



H. hcemorrhoidalis gionp. 

 $ . — Length about I'lo nun. 



Head, prothorax, pterotUorax, and apex of abdomen golden^ 

 brown, shaded to brown laterally ; f rons 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. Antennae broken in the unique specimen 

 except the first two joints, which are light yellow. Fore-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 beiiind 

 eyes, and then as faintly sinuate or convergent posteriorly. 

 Eves small, only occupying about one-thi^d the length of 

 the head and the space between them at least 2*5 times the 

 width of one of them. Antennae .... Vertex produced 



Ann. & Mag. N. Hist. Ser. 8. Vol. xvii. 15 



