2 GO CLAVICORNIA. \_Ipina. 



ii. Thorax not overlapping base of elytra ; pygidinm ex- 

 posed ; body elongate, upper surface glabrous . . . IPS, F. 

 II. Anterior coxal cavities narrowly closed behind; other 

 diameters as in Ips PITYOPHAGUS, ShucJe. 



CRYPTARCHA, Shuckard. 



This genus contains about twenty species, of which five occur in 

 Europe ; the others have been described from Ceylon, Western Africa, 

 and North, Central, and South America (two of the latter having been 

 found in Chili) ; our two British species are very distinct ; this is not, 

 however, the case with some of the exotic species (e.g. C. camptodoides 

 and C. thalycroides), which, as their names imply, bear a close super- 

 ficial resemblance to otVier divisions of the Nitidulidae. 



I. Size larger ; form broad oval ; thorax dark, except extreme 



margins of sides ; club of antennae dark C. STRIGATA, F. 



II. Size smaller ; form long oval ; thorax with margins broadly 



testaceous ; antennse entirely reddish or reddish-brown . . . C. IHPEEIALIS, F. 



C. strig-ata, F. (lateralis, Sahib.). Of rather broad oval form, 

 convex, thickly punctured, clothed with very fine pubescence, and with 

 very fine outstanding setae \ at the sides of elytra ; colour dark, fuscous, 

 with the mouth, sides of thorax, and margins of elytra reddish, and two 

 irregularly formed dentate bands on elytra yellowish or reddish-yellow ; 

 antennas brownish-red with club dark ; thorax large, fully as broad 

 at base as base of elytra, base sinuate, not margined ; legs red. L. 

 3-5| mm. 



At sap and under bark of oaks, &c., very often in connection with the burrows of 

 Cossus ligniperda ; not common ; Richmond Park, Coombe Wood, Shirley, Clandon 

 Common (Surrey), Westerham ,(Kent), Belvedere, Cobham Park ; Hastings ; New 

 Forest ; Southampton ; Dean Forest ; Knowle, near Birmingham ; Colchester ; 

 Barmouth, in fungi ; Bretby Wood, near Repton, by sweeping ; Dunham Park, 

 Manchester. 



C. imperialis, F. Of more elongate form, and not so convex as the 

 preceding species, and considerably smaller ; prevailing colour reddish- 

 testaceous ; vertex of head, disc of thorax, and two or three very irregu- 

 lar bands on elytra, dark ; antennae and legs red-brown ; it also differs 

 from C. strigata in having the outstanding setse on the sides of elytra 

 much more distinct. L. 3-4 mm. 



"Taken under the same circumstances as and often in company with the preceding, 

 1it r:irer ; Clandon Common, Coombe Wood, and Cobham Park; Hastings; 

 (ilunvilles Wootton; New Forest; Southampton; Knowle 4 Dunham Park, Man- 

 Chester. 



IPS, Fabricius. 



This genus, in its widest sense, contains about thirty species, which 

 are very widely distributed, but chiefly occur in the Northern llcmi- 



