] () MANDIBUI.ATA. COLEOPTERA. 



nortlicrn coast of Norfolk, " near IJurnham/'' — Rev. T. Skrimshire. 

 "Not uncommoiir (near Swansea).'''' — L. W. Dillwyn, Esq. 



Genus CCCCXXXII. — Bolitophagus, Fahricius. 



Antenna: curved, subclavate, 11-jointed, basal joint large, stout, elongate, 

 second short, nodose, third long, obconic, two following short, also 

 obconic, three following transverse produced within, ninth and tenth 

 broader, perforated, subobtrigonal ; terminal large rounded. Palpi unequal, 

 filiform ; maxillary, with the apical joint subovate-obtuse, labial acute : 

 labium transverse, rounded : head orbiculate : eyes lunate : thorax trans- 

 verse, emarginate anteriorly, with the lateral margins crenulate : body 

 oval, convex above : elytra free ; luings ample : legs stout ; tibia slender, 

 equal, simple ; tarsi short, heteromerous. 



The crenulated lateral margins of the thorax, curved serrated 

 antennae, and ovate obtuse body, at once point out the prominent 

 distinctions of this genus from the others of this family. 



Sp. 1. Agricola. Fusco-piceus, opacus, convexus, antennis pedibusque rufo- 

 ferrugineis, thoracis laterihus crenulatis, angulis posticis obtusis, elytris 

 porcatis. (Long. corp. IJ — If lin.) 



Bo. Agricola. Fabricius. — Steph. Catal. 243. A^o. 2426. 



Pitchy-brown, opaque, convex : head thickly but finely reticulate-rugose : 

 thorax with the anterior angles acuminate, the posterior obtuse, the disc 

 very convex, thickly rugulose, the lateral margins crenulate : elytra very 

 convex, each with eight elevated, acute, ridges ; the intervals with a series 

 of deep circular impressed points ; legs and antennae rufo-ferruginous. 



Variable in colour, according to its state of maturity ; either rufo-piceous, 

 ferruginous, or pitchy-brown : one of these states is the Bo. brunnea. — 

 Steph. Catal. I. c. Ah. 24.27. 



Frequently taken in the vicinity of the metropoUs in May and 

 June, chiefly in Boleti : it also occurs in several parts of the country. 

 " Netley/"' — Bev. F. W. Hope. " In profusion in tree fungi, Ken- 

 sington Gardens.'' — Mr. Ingpen. 



Genus CCCCXXXIII.— Opatrum, Fabricius. 



AntenncB short, robust, clavate, 11-jointed, basal curved, second minute, third 

 elongate, subcylindric, a little thickened at the apex; the fourth to the 

 seventh somewhat obscure, three following transverse, increasing in size, 

 the eleventh suborbiculate. Palpi short, stout, unequal, the terminal joint 

 of the maxillaries large obtrigonate ; of the labial ovate-obtuse : head trans- 



