108 COLYDIID^. 



the base of the antennae, the scutellum, and the whole of the underside 

 of the body ; head large, finely but distinctly punctvu^ed ; thorax 

 about twice as broad as long, with the sides distinctly more nai-rowed 

 in front than in T. russica, very finely, and not very closely punctured ; 

 elytra somewhat distinctly punctate striate, interstices very finely and 

 ii-regularly punctured ; the sculpture of the elytra is, however, dis- 

 tinctly stronger than in T. russica. The var. Gyllenhalli, Crotch, 

 Ent. v. 7, appears to have the sculpture much more marked. 

 L. 4^-5 J mm. 



Gibside, Northumberland ; taken in fungus growing on elms and 

 holly by Mr. R. S. Bagnall. The account of the capture and of its 

 intricate synonymy will be found in the Entomologist's Monthly 

 Magazine, vol. xli. (2 Ser. xvi.), 1905, pp. 86 and 135 ; the synonymy was 

 worked out by Professor Hudson Beare, and it still remains somewhat 

 of a problem in certain points. The species is found rarely in Northern 

 and Central Europe. 



COLYDIIDiE. 



AULONIUM, Erichson. 



A. trisulcum, Geofl\ (Entom. Paris, i. 1785, 23); A. sul- 

 catum, 01. (Entom. ii., 18, 4, pi. 1, f. 1). Elongate and parallel, 

 reddish-yellow or light castaneous, unicolorous, or with the hinder part 

 of the head and the central portion of the thorax darker, and the 

 suture of the elytra, especially towards the apex, blackish; head 

 narrower than thorax, with the eyes rather prominent, antennae short, 

 with a strong and rather loose 3-joiiited club ; thorax quadrate, 

 strongly bordered, with very fine sculpture, and with three strong 

 longitudinal furrows, the central one being broad and divided into two 

 which diverge from just behind middle to base (some authors describe 

 these as four, the central ones nearly meeting and running close 

 together from middle to apex) ; elytra long, parallel sided, with five 

 regular rows of punctures, interstices very finely and sparingly 

 punctured ; tibife dilated at apex, with one apical spur more strongly 

 developed than the other and gently curved (this is one of the 

 characters that separates the genus from Colydium) ; the upper surface 

 is not very shiny, but has a somewhat greasy (fettglanzend) appearance. 

 L. 4|-7 mm. 



Enfield ; under elm bark in the burrows of Scolytus multistriatus. 

 Subsequently Mr. Pool took it both at Edmonton and Winchmore Hill. 

 This very interesting addition to our list (Ent. Record, xvi. 1904, 310) was 

 made by Mr. C. J. C. Pool in July, 1904. The insect is found rarely 

 under elm bark in Central and Southern Europe in the burrows of 

 *S'. destructor and ^S'. mnltistriatiis. 



The larva of this species is briefly described by Westwood (Classi- 

 fication I., 147, Fig. 12, 5); it is long, subdepressed, and slightly 

 curved, with three paiis of short thoracic legs and a pair of short 



