42 



Caxaliculatus, Cryll., EricJis. If lin. xlbout the size of huph- 

 thalmus, but more pubescent, with larger elytra, and the thoracic channel 

 more strongly defined. Eather dull black ; palpi black, with the basal 

 joint, and extreme base of the second joint, testaceous, the apical joint 

 stout. Head rather depressed, with scarcely any perceptible grooves 

 or middle elevation ; thorax of the same shape and punctuation as in 

 buphthalmiis, but with scarcely any depression behind, and a delicate 

 but distinct dorsal channel for its entire length. Elytra decidedly 

 longer than the thorax, not so irregularly punctured as in buphthalmus, 

 the interstices flat, and with scarcely any depressions. In the male the 

 fifth segment of abdomen beneath has a wide and shallow emargination, 

 the sixth being more deeply notched. 



Northumb. and Cumb. (not common), Falkirk, Weston, Fen district, 

 Bungay, Boston, Brighton, and London district (common), 



Debilis, Dietrichsen (in litt. ?) 



opacus, Waterh. Cat. (nee Erichson). 



Mr. E. W. Jan son informs me that a specimen of the insect taken 

 by Messrs. Crotch and Matthews, and referred by them to 8. opactis, 

 has been returned to him by Dr. Kraatz with the following remarks — 

 " Steno debili, Diefr. (in litt. ?), proximits ; verisimiliter eadem species" 

 also that Dr. Kraatz seemed doubtful whether a description had been 

 published. 



This insect somewhat resembles S. bupJithalmns, but may be dis- 

 tinguished from that species by its flat, dull appearance and very closely 

 punctured abdomen. 



If lin. Dull black and rather flat. Antennse and palpi short and 

 pitchy black, the latter with the basal joint, and base of the second, 

 testaceous. Head wide and flat, with two wide shallow grooves, the 

 interstice gently convex. Thorax scarcely longer than its greatest 

 breadth, rounded considerably in front and narrowed behind ; closely, 

 but not very strongly punctured, the punctures thickest at the base, 

 seemiug almost granulate, and with an obsolete transverse depression 

 behind the middle. Elytra scarcely longer than the thorax, depressed, 

 slightly im.rrowcd at the Rhoulders, and with the hinder margin sloping 

 upwards irom the outer angle to the suture, closely punctured, the 

 punctures rather stronger than on the thorax, the interstices almost 

 rugulose at the apex. Abdomen slightly shining, very closely punctured; 

 the basal fovese of the first four segments obsoletely keeled, the most 

 evident keel being in the middle of each. Legs pitchy black, the tarsi 

 whort, and with the penultimate joint obcordate, or almost bi-lobed. 



