54 ON HYSTERARTHKON AND CAMIRA. 



NOTE XV. 



ON TWO GENERA DESCRIBED BY JAMES THOMSON 

 IN HIS »SYSTEMA CERAMBYCIDARUM" 



C. RITSEMA Cz. 



To an interesting lot of Longicorn Beetles , communi- 

 cated to me by Mr. René Oberthür, was joined the uni- 

 que type-specimen of the genera Hysterarthron {collare) 

 Thoms. and Camira {sexmaculata) Thoms. , both described 

 by the author as belonging to the family of the Ceram- 

 bycidae '). 



I was astonished to find that the first did not at all 

 belong to the named family, its anterior tarsus being com- 

 posed of five joints^) (the middle legs are wanting). A 

 further examination showed me that Hysterarthron collare 

 Thoms. belongs to the family of the Lagriidae, and that 

 it will find its place in the neighbourhood of the genera 

 Statira Serv. and Casnonidea Fairm. 



The second genus {Camira Thoms.) cannot be maintai- 

 ned at all, its type-specimen being composed of the head 

 and prothorax of a Praonei/ia-species, and the elytra with 

 meso- and metathorax of a species of the genus Perissus 

 Chevr. (x-littera Chevr., femoralis Chevr., trizonatus Boisd. 

 or glaucinus Boisd.). 



Ley den Museum, February 1892. 



1) Thomson, Systema Cerambycidarum , pp. 234 and 325. — Lacordaire, 

 Genera des Coléoptères, IX, pp. 232 and 582. 



2) In the «Atlas" belonging to Lacordaire's «Genera'" the artist has given 

 four joints to all the tarsi! (Plate 95, fig. 5). 



Notes from ttie Ijeyden Mixseixm , Vol. XIV. 



