250 LONGICOKXIA. [Mcsosa. 



MESOSA, Serville. 



Tliis genus contains a dozen species, \vhich are widely distributed ; 

 three are found in Europe, and the remainder have been described from 

 China, Japan, Ceylon, Thibet, the Amazon district, &c. ; they are broad 

 and robust insects, and may be distinguished from all the preceding genera 

 of the tribe, to some of which they bear a rather close resemblance, by 

 the fact that the thorax has no lateral spines ; the forehead is excavated 

 between the antennae, and the antennae are long and pilose beneath ; the 

 prosternal process nearly reaches the apex of the anterior coxae, the 

 cavities of which are narrowly closed behind ; the mesosternum is 

 prominent in a blunt tubercle between the intermediate coxae ; the legs 

 are moderately long and robust ; the larva of M. nubila is found in 

 decaying logs of poplar, lime, beech, &c. ; it appears closely to resemble 

 that of Pogonochwrus, having the prothorax a third broader than the 

 eighth segment of the abdomen, and the anal segment trifurcate ; the 

 patterns of the tubercular or scansorial areas of the abdominal segments 

 of various species of Longicorns vary very much, and afford good 

 characters for their distinction ; they are, however, hard to describe ; 

 those of M. nubila and P. pilosus will be found figured by Schiodte, 

 Pars ix., Tab. xvii., figs. 20 and 16 respectively, and many others will be 

 found figured by Schiodte and Chapuis and Candeze in their works on 

 the larvae. 



ZVZ. nubila, 01. (nebulosa, F.). Short, broad and robust, rather 

 convex, black, variegated with black, brownish-ferruginous and white 

 pubescence ; head large, together with thorax marked with longitudinal 

 lines of pubescence, antennae longer in male than in female ; thorax 

 transverse, without spines at sides, coarsely and sparingly punctured ; 

 elytra broad, sparingly and closely punctured, with a broad common 

 waved whitish or whitish-brown fascia about middle, bounded above 

 and below by a narrow dark line, that on the posterior margin being 

 strongly dentate ; legs pilose, variegated. L. 9-13 mm. 



In decaying boughs ; rare ; most of our specimens have been taken in the New 

 Forest ; wliile I was collecting with Dr. Sharp and Mr. Gorham in that locality on 

 May 1st, 1885, Mr. Gorham took two specimens from a small bough lying on the 

 ground. Monks Wood (not uncommon) ; Cambridge ; Stephens also records it from 

 Cooinbe Wood, Windsor, aud Bewdley Forest. 



AOAFANTHIA, Serville. 



This genus may be easily known by its elongate form, taken in 

 conjunction with its 12-jointed antennae, which are longer than the 

 body ; the mandibles are bifid at apex ; the thorax is not spined at 

 the sides, and the anterior coxal cavities are closed behind, the coxaj 

 themselves being slightly separated ; the intermediate tibiae are slightly 

 sinuate externally towards apex, and the tarsi are long, being almost as 

 long as the tibiae ; the number of species at present known is about thirty, 



