CERAMBYCID,E 249 



V 



them, unless a few may warrant still further generic definition. The 

 genera as here delimited are apparently valid; at least, it would 

 not be easy to say just which of them should have the subgeneric 

 status, as they differ among themselves strikingly in general 

 habitus or in some marked structural features. 



Judolia Muls. 



In our fauna this genus, which is distinguished by the robust form 

 of body and tibial modifications of the male, will include, besides 

 the European sexmaculata of Linne, and the closely allied vexatrix 

 Mann., from the Kenai Peninsula of Alaska, cordifera Ql'iv., instabilis 

 Hald., convexa and quadrata, which are specifically valid, sexspilota, 

 quadrillum and impura of LeConte, gaurotoides Csy., axidflaviventris 

 Schf . ; guarotoides is aberrant in its uniformly deep black coloration 

 and in having the shortest and relatively thickest antennae known to 

 me among the allies of Leptura, excepting brevicornis Lee. Besides 

 these species, there are the following hitherto undescribed: 



Judolia pacifica n. sp. A little narrower than convexa and stouter than 

 cordifera, colored and ornamented almost exactly as in the former and 

 instabilis, the sculpture similar but much finer than in instabilis, the 

 prothorax much less prominent at the sides than in those two species 

 and resembling cordifera in this respect; head small, densely punctured, 

 the front only moderately prolonged; antennae (of 1 ) unusually long for 

 this group, being fully as long as the body, slender, not in the least 

 thickened apically, nearly as in cordifera but less slender; prothorax as 

 in cordifera but smaller, less full anteriorly at the sides and with the basal 

 angles laterally more prominent; elytra much more sparsely and strongly 

 punctured, even more sparsely so than in convexa, which they resemble 

 in form and maculation, excepting that the apices are much more acute; 

 abdomen more densely and strongly punctulate and pubescent than in 

 either of those species, the fifth segment broadly, feebly impressed pos- 

 teriorly. Length (cf) 9-7 mm.; width 4.1 mm. California. 



The hind tibiae of the male are but slightly modified, the serrules 

 along the inner edge feeble and very irregular, much less strong than 

 in cordifera or instabilis and without the contorted inner flattening 

 of the former species or quadrillum. This species is more closely 

 allied to convexa than any other, but differs in the much longer 

 antennae, less prominent sides of the prothorax, denser and more 







conspicuous abdominal sculpture and vestiture, narrower outline, 

 still smaller head, more acute elytral tips and other features. 



