CUROULIONID.E. 



191 



one behind the middle, covered with 

 white scales ...... 



II. Elytra without a white humeral spot. 

 i. Elytra with some of the interstices, 

 other than the first, paler than the rest. 



1. Sides of thorax with a pale stripe. 



A. Greatest width of the thorax 

 rather more than half that of the 

 elytra ..... 



B. Greatest width of the thorax sub- 

 equal to that of the elytra . 



2. Sides of thorax without a pale 

 stripe. 



A. Upper side brownish-grey, the 

 paler colour of the alternate in- 

 terstices, especially the 5th and 7th, 

 very conspicuous; sutural stripe 

 yellowish-white by reason that the 

 oblong pure white scales are con- 

 fined to the inner half of the first 

 interstice, the outer half being 

 covered Avith yellowish linear ones 

 similar to those on the other in- 

 terstices ; base of elytra distinctly 

 wider than base of thorax, 

 shoulders somewhat irregular 



B. Upper side blue-grey (plumbeous), 

 the paler colour of the alternate 

 interstices inconspicuous ; sutural 

 stripe very white by reason that 

 the oblong pux^e white scales 

 occupy the whole width of the first 

 interstice; base of elytra but little 

 wider than base of thorax, 

 shoulders rounded off . 



ii. Elytra with the suture sometimes 

 whitish, but without any other pale 

 stripe. 



1. Elytra with a crust of broad scales 

 which pi-actically, if not absolutely, 

 obscure the course of the strise ; hind 

 femora with a distinct sharp tooth 



2. Elytra clothed with elongate scales ; 

 hind femora simple. 



A. AntennfB entirely pale. 

 a. Punctures of the elytral strife 



T. QUINQUEPUKCTATUS, L. 



T. YEXUSTUS, F. 



T. scHXEiDERi, Ilerhst. 



T. POLYLIXEATUS, Germ. 



T. LixEATULUs, Steph. 



T. SQUAMULATUS, Gl/U. 



{^flavicollis, Steph.) 



