410 Mr. R. S. Bagnall on new Thysanoptera. 



yellow clouded with grey to grey-brown basally and along 

 outer margin; intermediate and liind tibise shading to yellow 

 distally; all tarsi yellowish with brown spot. Antennal 

 joint 3 lemon-yellow, 4 to 6 yellowish to light brownish- 

 yellow; 7 and 8 light brown. 



Head about 1*3 times as long as wide across eyes, widest 

 just below the middle ; cheeks broadly arched ; eyes slightly 

 protruding, coarsely facetted, occupying about 0'35 the total 

 length of head and each about 0"25 the breadth. Vertex 

 raised ; ocelli large, posterior pair on a line across the 

 anterior third of eyes ; anterior ocellus forwardly directed ; 

 postocular setae short, inconspicuous. Antennje about 1'7 

 times the length of head, ratlier stout ; joint 3 obconical, 

 narrower than 2 or 3 to 5, 6 and 7 somewhat broadly and 

 7 and 8 broadly united ; relative lengths of segments ap- 

 proximately as follows :— 8 : 15 : 14 : 15 : 16 : 15 : 12 : 8. 

 Mouth-cone reaching about 0*7 across prosternum ; apex 

 blunt ; joint 1 of maxillary palpus short, about 0*2 the 

 length of 2. 



Prothorax about 0*75 the length of head and about twice 

 as broad as long. All setse present, colourless and therefore 

 difficult to discern ; the pair at posterior angles largest, 0*4 

 the length of prothorax. Pterothorax slightly broader than 

 width across fore-coxae, about as long as broad ; wings 

 absent ; legs rather short and stout ; fore-tarsus with a 

 minute, sharp, but broad-seated tooth. 



Abdomen not much broader than pterothorax ; elongate ; 

 roundly narrowed from segment 7 to base of tube. Tube 

 about as long as the prothorax, 0'65 as broad at apex as at 

 base, sides gently and evenly narrowed from near base ; 

 terminal hairs about as long as tube, colourless except for 

 basal third or thereabouts. Abdominal setse on segment 9 

 about 08 the length of tube, other setge shorter; all colourless 

 and inconspicuous. Wing-retaining setse on tergites 2 

 to 7. 



Separated from G. monilicornis (Renter) by the smaller 

 size, shape, and coloration of the antennae, and the shape and 

 modest or normal proportions of the head. It should be 

 noted that the Cephalothrips yuccce of Hinds cannot be re- 

 garded as congeneric with monilicornis or hispanicus. 



Type. Hope Department of Zoology, University Museum, 

 Oxford. 



