202 NEW GENERA AND SPECIES OF THYSANOPTERA 



widely separated. Cheeks sparingly set with small spines set 

 in minute warts. Antenncz .... Month-cone 



Prothorax one-third the length of head, irregularly but 

 strongly transverse. Fore-femora swollen ; tarsi fairly strongly 

 armed ; hind and intermediate legs long. Wings present. 



Species medium sized. 



Type — Docessissophothi'ips ampliceps mihi. 



At once recognised by the striking form of the head. 

 The type specimen is unfortunately badly mounted, the gum 

 covering the tube and wings, the abdomen dried and curled, 

 and the antennae, with the exception of the two basal joints, 

 broken off. 



Docessissophothrips ampliceps sp. n. (PL VI., figs. 



i6, 17). 

 Length 2'6 mm. ; breadth of mesothorax o*6 mm. 



Colour reddish-brown ; tarsi and antennas lighter. Inter- 

 mediate and the hind coxae white with slight traces of reddish 

 pigmentation. Head strongly raised and swollen above and 

 behind eyes, and constricted both laterally and dorsally 

 towards neck. Cheeks set with a few small spines. Eyes 

 small, finely faceted and widely separated, having chiefly a 

 lateral range of vision. Ocelli comparatively large, light red; 

 posterior pair widely separated, though remote from the 

 inner margins of eyes ; post-ocular spines apparently absent. 

 Surface of head roughly striate, reticulate laterally towards 

 base. 



Prothorax strongly transverse, irregularly margined ; two 

 crescentic ridges near the anterior margin and meeting in 

 centre, and two similar but obverse crescentic ridges before 

 the posterior margin, enclosing a pair of thumb-like im- 

 pressions. Stijface irregularly reticulate. Mid-lateral, anterior- 

 and posterior-marginal spines, as well as those at posterior 

 angles long and stout ; spine at each anterior angle short. 

 Pterothorax as wide as the width across fore-coxae. Fore- 

 femora swollen, furnished with a few minute warts ; fore-tibia 

 broad, and fore-tarsus armed with a short broad tooth. 

 Intermediate and posterior legs long, with the femora slightly 



