238 LONOICORNIA. [Leptura. 



base and finely at the apex. The under-side is covered with ashy 

 pubescence, the abdomen being more or less red towards the tip. L. 

 15-17 mm. 



A single male was tnken by Mr. Thorncroft at Holme Bush, Sussex, in the 

 summer of 1865 ; the species is found rarely in the south of France, Spain, Turkey, 

 mid Oreece, so that in all probability this specimen can hardly he considered 

 indigenous, ns no other specimen has occurred either before or since, aud it might 

 have been imported in timber.) 



STRANOALIA, Serville. 



According to the Munich catalogue and M. Lameere's supplement the 

 genus StrangaUa proper only contains fourteen species, of which one 

 only (S. attenuata) is found in Europe, the rest being described from 

 North America, Northern Asia, and Persia ; a large number of species, 

 however which have been included under Strangalia are placed under 

 Leptura by Gemininger and Von Harold, Thomson, Reitter, and others; 

 of these eighteen inhabit Europe, of which six occur in Britain ; they 

 are found like other members of the tribe on Umbelliferse and other 

 flowers ; the larva? occur in decaying wood of various trees ; that of 

 S. armata is described by Westwood (Classification, i. p. 369) ; it is 

 subparallel, with the head nearly as broad as the prothorax, which, 

 together with the head, is depressed and scaly ; the posterior margin of 

 the thorax is furnished with a transverse series of short recurved spines, 

 and the same is the case with the abdominal segments of the pupa ; the 

 extremity also of the abdomen is terminated by two acute points bent 

 upwards. 



The species much resemble those belonging to the genus Leptura 

 proper, but may easily be distinguished by having the posterior angles of 

 the thorax produced in a spine ; from Grammoptera they may be known 

 by having the elytra distinctly narrowed to apex. 



I. Thorax narrowly or very narrowly and suddenly con- 

 stricted just before apex ; elytra with the humeral 



tubercle situated on the base. 

 i. Elytra black with yellow or reddish -yellow bands. 



1. Thorax with anterior and posterior margins 



thickly rlothed with yellowish hairs S. ATTBULEXTA, F. 



2. Thorax without distinct rows of yellowish hairs 



on margins S. QTTADRIFASCIATA, L. 



ii. Elytra unicolorou, black or reddish S. HEVESTITA, L. 



II. Thorax gradually narrowed and feebly or not at all 

 constricted from anterior third ; elytra with the 



humeral tubercle situated behind base. 

 i. Anterior coxal cavities closed behind ; thorax with a 



lateral tubercle before middle ; elytra light yellow 



with black markings S. ARMATA, Jftrlst. 



ii. Anterior coxal cavities open behind ; thorax without 

 lateral tubercles. 



1. Posterior tarsi with the third joint pubescent 



