LATHRIDIID^. 121 



the elytra are distinctly, though slightly, rounded at the sides, whereas 

 in the last-named species the sides are quite pai'allel. 



C. truncatella, Mann. (Germ. Zeitschr., v. 59). Very closely allied 

 to C. fulvipes, of which it is regarded as a variety by 13elon (Revue 

 d'Entom. Caen, 1897, 205); it may, however, be distinguished by its 

 entirely reddish-yellow colour (in C. falvijyes the breast and abdomen 

 are always, and the elytra are generally, fuscous), thick-set shape, 

 proportionately broader thorax, the shape of the antennal club and 

 the absence of callosities at the shoulders ; head much narrower than 

 the thorax, without pronounced temples behind the eyes ; antennse 

 slender, with a longish club, of which the first joint is plainly longer 

 than broad ; thorax about twice as broad as long, strongly and regularly 

 rounded at the sides, with sharp projecting tooth-like hind angles; 

 elytra oval and convex, with strong punctured stride, which are deeper 

 at the sides, and with very fine rows of punctures on the slightly raised 

 interstices ; first joint of the front tarsi dilated in both sexes, but more 

 strongly in the male ; in the latter sex the front tibiog are rather 

 strongly thickened and the front tibife are furnished with a small tooth 

 on their inner side before the middle ; tiiese characters of the male are 

 the same as in C.fulvijyes. L. li-lf mm. 



Dr. Joy, who intx'oduced the species as British (Ent. Record, xx, 

 (1908) 91), records the capture of two specimens by himself in Norfolk 

 (August, 1904), probably at Sherijigham or "Wells ; Mr. Newbery has 

 also taken it at Lowestoft ; it is probably veiy widely distributed, but 

 overlooked. 



Dr. Sharp (Ent. Mo. Mag. xlvi. (2 Ser. xxi.) 1910, 105), gives 

 some interesting notes on the genus Corticaria and describes two new 

 species ; like Ganglbauer, he rejects the genus Gorticarina of Reitter, 

 as there is nothing to distinguish it from Corticaria except the existence 

 of a minute denticle on the anterior tibia of the male ; this denticle is in 

 some cases very difiicult to detect, and is clearly inadequate as a generic 

 distinction. 



Unlike Ganglbauer, however, he accepts Melanojihtliahna, Mots., as 

 a good genus ; he says that in the last-named genus " the species have 

 in common a positive character that distinguishes them satisfactorily, 

 viz., the existence of strongly marked coxal lines on the first ventral 

 segment. Moreover, I find a supporting character in the structure of 

 the feet, viz., that in Melanojythalma the second tarsal joint is simply 

 interposed between the first and third, so that the tarsi are conspicuously 

 three-jointed and ai-e quite linear, as there is not any dilatation of the 

 basal joint. In Corticarina the basal joint is enlarged and the second 

 joint is inserted so far forward on its upper surface that it is frequently 

 difiicult to detect. Several species of Corticaria and one of Cortioarhia 

 {C. gibbosa) are intermediate as regards the tarsal structure ; never 

 theless it remains true that Melanophthalma forms the extreme of the 

 series in this respect, and, therefore, may be quite naturally retained 

 on account of its coxal lines. The genus Jlelanop/dhabna, then, will 



