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CATALOGUE OF 



-\- Fore femora slender, with some little spines. - Hyalochilus. 

 -\ — \- Fore femora thick, with one stout s|)ine. - Trapezonotcs. 



to«05 First joint of the hind tarsi almost twice or thrice 

 longer than the second and third joints 

 together. 

 4" Fore border of the prothorax straight, with an 



abbreviated neck. . . - - Ischnotarsos. 



-] — |- Fore border of the prothorax excavated, rarely 

 straight. 

 = First joint of the rostrum shorter than the head. - Microtoma. 



=z= First joint of the rostrum as long as the head, or 

 somewhat longer. 

 O Fore femora beset only on the inner edge of the 

 fore half with one stout spine and with some 

 little spines. 

 V Rostrum extending to the hind border of the 

 metapectus. First joint of the hind tarsi thrice 

 as long as the second and third joints together. Leth^us. 



VV Rostrum extending to the hind border of the 

 mesiipectus. First joint of the hind tarsi twice 

 as lung as the second and third joints 

 together. - - . . Rhyparochromob. 



OO Fore femora beset with spines of equal size along 

 the whole inner edge. 

 V Prothorax short, trapeziform. 

 j^ Outer edge of the fore femora beset with three or 



four spines. - - - - . Beosus. 



^^ Outer edge of the fore femora beset with six or 

 eight spines. 

 >■ Rostrum extending to the middle of the meso- 



peCtUS. . - - - . GoNIANOTUS. 



>■ >■ Rostrum extending to the middle of the meta- 

 pectus. _ . . . ■ Emblethib. 



W Prothorax elongate, trapeziform. 

 ^ First joint of the anienn^ longer tlian the fore 

 part of the head. First joint of the hind tarsi 

 thrice as long as the second and third joints 

 together. - - _ - . Tschnopeza. 



^^ First joint of the antennse as long as the fore part 

 of the head. First joint of the hind tarsi twice 

 as long as the second and tliird together. - Neurocladus. 



Jl First joint of the hind tarsi siiorter than the 



second and third joints together. 

 § Rostrum extending to the base of the alidomen.- Ischnorhynchub. 

 §§ Rostrum not extending beyond the middle of the 



mesopectus. 

 X Eyes small. ----- Artheneis. 



XX Eyes large. ----- Bolcocranum. 



ff Hooks on the inner veins. Veins (tf the membrane 

 springing from the basal areolets. 

 X Prothorax elongate, trapeziform, - - Phyoadicus. 



