324 CLAVICORNIA. [Cryptophctgus. 



thick depressed greyish pubescence, elytra -with long setose pubescence 

 arranged in distinct rows; thorax not strongly transverse, with the 

 anterior angles callose, produced into a very blunt angle behind, which 

 is often hardly apparent, lateral teeth distinct situated in the middle 

 of sides, which are more or less plainly narrowed from middle to base ; 

 elytra rather long, subparallel, but widened a little in middle, thickly 

 and finely punctured, the punctuation becoming finer towards apex ; 

 legs ferruginous, or testaceous, anterior tibiae and tarsi of male slightly 

 dilated, L. 2-2 f mm. 



In haystack and flood refuse ; also found in cellars in refuse, fungi, &c. ; occasion- 

 ally taken in birds' nests ; common and generally distributed throughout the 

 kingdom. 



This species is of about the same build and size as C. acutangulus, 

 but is at once distinguished from that species by the shape of the 

 anterior angles of the thorax ; from large specimens of C. dentatus it 

 may be separated by the more distinct callosity of the anterior angles 

 of thorax, and by having the lateral teeth situated in middle of sides 

 instead of before middle. 



C. affinis, Sturm. Oblong oval, convex, clothed with rather long 

 greyish pubescence, ferruginous or rufo-testaceous with the thorax 

 occasionally darker than the elytra; antennae with the third joint 

 scarcely longer than second ; thorax very thickly punctured, transverse, 

 with the anterior angles callose, reflexed, and terminating behind in a 

 blunt and not very distinct tooth, lateral teeth situated in middle of 

 sides, which are rather plainly narrowed behind ; elytra closely but 

 distinctly and rather strongly punctured, with pale pubescence and 

 rows of setose pubescence which are more or less distinctly marked ; 

 legs ferruginous or testaceous, with the anterior tibia? and tarsi slightly 

 dilated in male. L. lj-l| mm. 



In haystack and vegetable refuse, fungi, &c. ; rather common and widely dis- 

 tributed throughout England ; recorded by Bold as not uncommon in the North- 

 umberland and Durham district, but it appears to be rare in Scotland, and has only 

 been found hitherto in the Solway district. Mr. J. J. Walker has taken it at 

 Cromer in company with Formica fuliginosa. 



This species most closely resembles C. scanicus v. patruelis, but may 

 be distinguished by the setae on the elytra which are very evident under 

 a high magnifying power, and also by having the anterior angles of thorax 

 more plainly reflexed ; the thorax also is more deeply punctured. The 

 rows of setae on the elytra are often very indistinct in rubbed specimens, 

 but even in these the difference of the pubescence may very easily be 

 seen if they are examined under a compound microscope. If specimens 

 of C. affinis and C. scanicus v. patruelis be placed together under a 

 two-inch objective in a good light, there will be no need to compare 

 them in any other way except by pubescence ; under an ordinary lens 

 they look very much alike 



