CoIu7l.] CLAVICORNIA. 71 



C. latum, Kr. One of the most distinct species of the genus, and 

 easily known by its short and broad oval form, and very large ample 

 thorax, which is plainly broader than the elytra, and has the sides 

 dilated behind middle, and the posterior angles somewhat prominent ; 

 colour fuscous or fuscous-lirown ; jjunctuation fine and even ; elytra 

 narrowed behind with very fine transverse strife ; legs ferruginous, tibiae 

 dilated towards apex and denticulate externally ; posterior femora simple 

 in both sexes. L. 2|-3 mm. 



By evening sweeping; very rare; Shirley near Croydon (Janson) ; Sliiere, near 

 Guildford (Capron) ; The Holt, Farnhani (Power) ; Bishops Wood (Sharp) ; Green- 

 liithe (Waterhouse) ; Easthani, near Liverpool (Ellis) ; Scotland, very rare, Clyde 

 district (Sharp). 



BATKVSCIA, Schiodte {Adelops, auct.). 



Our single species of BatliTjscia is the sole British representative of a 

 group which is one of considerable extent, both as regards species and 

 genera ; the members of the group are to a great extent cave-frequenting 

 insects, and have the eyes either rudimentary or entirely wanting, as is 

 the case with so many other of the vertebrates and invertebrates that 

 inhabit like localities ; it is quite possible that more species will be 

 found in Britain, but our bone caves that have hitherto been discovered, 

 are not of very great extent, and researches made in them by Mr. 

 Matthews and Mr. Crotch for the purpose of discovering new Coleoptera, 

 have proved fruitless ; considering, however, that nearly one hundred 

 species of Bathyscia have already been described from Europe, a large 

 proportion of which are found in France, it is not unreasonable to expect 

 that further additions to our fauna may yet be made ; the most curious 

 member of the group found in Europe is Leptoderus ; it is, however, 

 improbable that this will occur in Britain. 



B. Wollastoni is found like other members of the genus under leaves, 

 refuse, &c., but appears especially to affect the old rotten shells of seed 

 potatoes, in which it is found occasionally in large numbers, when the 

 new crop is dug up in the summer. 



B. Wollastoni, Jans. Short, oval, convex, reddish-brown, with 

 fine and rather close yellowish pubescence, finely and thickly punctured, 

 the punctuation of the elytra being somewhat asperate ; head depressed, 

 with acute lateral angles ; antennae reaching about to base of thorax, 

 thickened gradually toAvards apex, penultimate joints almost or slightly 

 transverse ; thorax transverse, a little broader than elytra, gently and 

 evenly rounded at sides, much contracted in front, posterior angles pro- 

 duced, acute, fitting closely to shoulders of elytra; elytra narrowed 

 behind, gradually rounded at apex, with sutural stria distinct; legs 

 rather long and slender, male with the anterior tarsi 5-jointecl,* dilated. 



* According to several authors the tibise are 4- 5- 5-jointed in both sexes. 



