12 MANDIBULATA. COLEOI'TERA. 



Striate : body beneath, mouth, anteniife, and legs, ferrui^Miieo-castancous, 

 or piceous. 

 In immature specimens the margins of the thorax arc slightly castancous. 



Found in bakehouses amongst flour in London; not common; 

 it has also been captured bcneatli turf in Copenhagen-fields. 



Genus CCCCXXIX. — Alphitopiiagus mihi. 



Antenncs slightly elongate, and a little increasing in stoutness to the apex, 

 11-jointed, basal joint robust, second minute, third and fourth of nearly 

 equal length, slightly elongate, fifth and sixth also equal, stouter and some- 

 what cup-shaped ; four following subquadrate, a little produced within, 

 and thickened at ^he apex, terminal subglobose, largest. Palpi short, with 

 the terminal joint slightly thickened, somewhat triangular : menium subcor- 

 date : head suborbiculate : thorax transverse, rounded in front, convex : 

 bodij oval, convex; elytra free; wings ample: legs slender; iibiw simple, 

 all similar ; tarsi heteromerous, with entire joints. 



This genus evidently belongs tr the true Tenebrionidae, yet not- 

 withstanding it bears considerable resemblance to Diaperis in colour- 

 ing and general habit, though the structure of its antenna, &c. is 

 greatly different. It is the last genus of the family that appears to 

 subsist upon farinaceous substances, and the same doubt conse- 

 quently hangs over its native origin as on the preceding species of 

 the family ; from all of which the great convexity of the body, and 

 semicircu' anterior edge of the thorax, wUl at once distinguish it, 

 exclusively of other characters. 



Sp. 1. quadripustulatus. Plate xxir. f. 1. — Ferrugineo-castaneus, nitidis, 

 thorace macula antica, elytris suturd fasciisque duabus atris. (Long. corp. 

 1|— 1| lin.) 



Alphitophagus 4-pustulatus. Davis ( . MSS. 



Ferruginous- chestnut, or testaceous, shining ; head obscurely punctured, the 

 vertex sometimes black or pitchy: thorax with the lateral and anterior 

 margins rounded, the disc finely punctured, generally with a small black 

 patch in front, but sometimes nearly entirely piceous: elytra punctate- 

 striate, with the suture and two fascise black, the anterior fascia before the 

 middle, the posterior behind, the latter sometimes occupying the entire 

 apex, with a pair of minute testaceous spots : legs and body beneath, as 

 well as the antenna?, rufo-testaceous. 



Of this insect I received a pair some time since from Mr. Davis, 

 who bred them from flour. I have since obtained a fine and variable 



