British Species of Corticaria. 137 



Gyllenlial's description of the present species, but he appears to 

 have mistaken the C. crenulata for it, C. denticulata being repre- 

 sented in his Cabinet by two specimens of that insect. 



Upon two or three occasions has the insect here described been 

 sent from Germany as the C. longicornis, but C. longicornh is said 

 to be a black insect, and the present species is very rarely black ; 

 and furthermore it would appear by the descriptions that C. 

 longicornis is rather larger and has a longer thorax. It is always 

 compared with C. pubescens, but is said to differ in having the 

 interstices of the striae impunctate. Such being the case, a com- 

 parison of the characters of C. longicornis with those of the C. 

 denticulata is much to be desired, 



I may here mention that, although C longicornis is described in 

 Stephens' works (the description being from Gyllenhal), other 

 insects seem to have been mistaken for it, C. longicornis being re- 

 presented in Stephens' Collection by one specimen of C. pubescens, 

 and one of C. denticulata, 



4. Corticaria fuloa. C. elongata, convexiuscula, testacea, longius 

 pilosa ; oculis minus prominulis, nigris ; thorace cordate, 

 punctato, fovea rotundata postice impresso ; elytris elon- 

 gato-ovalis, striato-punctatis, interstitiis remote punctu- 

 latis. 



Long. I — 1 lin. 



Corticaria fidva, Chevrier, Villa Catal, 1835, p. 45, 

 Mannerh. Germ. Zeitschr. v. 42, 32. 



The largest specimens of this insect are equal to C crenulata in 

 length, but the form is narrower ; the thorax relatively smaller, 

 and of a different form ; the elytra have the shoulders more gently 

 rounded, and the apex less acuminate. It is entirely testaceous 

 (excepting the eyes, which are black) and clothed with rather long, 

 whitish hairs. Head nearly one-third narrower than the thorax ; 

 the eyes smaller and less prominent than in most other species ; 

 forehead convex and somewhat remotely punctured ; antennae not 

 differing perceptibly in structure from those of C. crcnidata. 

 Thorax but little broader than long ; truncated in front, very 

 gently rounded behind ; the broadest part rather in front of the 

 middle, where the sides are rounded, and from the middle to the 

 hinder part the sides converge, so that at the hinder angles the 

 width is reduced to about the same as it is at the insertion of the 

 head ; upper surface but moderately convex, and presenting a 

 rather large, shallow fovea behind, and pretty thickly punctured ; 



