12G Capt. T. Broun on neio 



i'lh'ue slondcr at base, expanded Ijeynnd, minntely denticulate 

 externally, the two front pairs obliquely truncate at the 

 extremity, the posterior obliquely rounded. Tarsi filiform 

 and slender, not as long as the til)iae, the basal three joints 

 elongate and nearly equal, third not lobate, and interposed 

 between it and the elongate terminal joint there is a minute 

 but distinct fourth joint. 



Front coxae large, prominent, almost contiguous, the inter- 

 mediate and posterior just perceptibly separated. Abdomen 

 rather longer than the metasternum, its segments with 

 straight sutures, that between the basal two very fine, the 

 others deep; the segments are horizontal and on the same 

 })lane, the first is distinctly longer than the second, the 

 third and fourth are nearly equal to one another, but shorter 

 than the ])receding one. 



In Scolytm the general form may be termed stumpy, the 

 anterior tibiae terminate in prominent curvate hooks exter- 

 nally, the elytra are quite truncate at the apex, and the 

 abdomen is retracted and suddenly bent vipwards, so that 

 the metasternum is abruptly prominent. In the genus here 

 described the tibiae are unarmed at the outer extremity, the 

 ventral segments are horizontal and are contiguous with the 

 epipleurae throughout. Tomicus more nearly resembles this 

 genus in contour, but the eyes are emarginate and the poste- 

 rior portions of the elytra arc either truncate or excavate 

 and spinose. 



Mesoscohjtns inurbanus, Broun. 



Cylindrical, slightly nitid, rufo-piceous or nigrescent, 

 sparingly clothed with erect, slender, yellowish hairs ; legs 

 and antennae testaceous or pale castaneous. 



Thorax longer than broad, base truncate, its rounded 

 anterior portion transversely punctate-rugose or granulate, 

 its appearance depending upon the direction from which it is 

 examined ; the basal part is finely and distantly sculptured 

 and the middle of the disk is somewhat elevated. Elytra 

 with three or four ill-defined stiiae near the apices, but 

 on the dorsum with series of moderately fine punctures, 

 interstices simple. Scutellum smooth. The antennal club, 

 though palette-like above, is feebly articulated underneatii, 

 the Ijald basal joint being as L ng as the three pubescent 

 terminal ones. 



Underside shining, brownish black, sparingly clothed Avith 

 elongate but extremely slender greyish hairs. Flanks of 

 prosternum finely punctured. JNleta^ternum convex, almost 



