190 Coleopterological Notices. 



throughout its width in broad circular arc, while in the female the 

 same segment is angularly produced in the middle for a short dis- 

 tance. The remarkable modification of the palpi and legs is not a 

 sexual peculiarity, being developed to precisely the same extent in 

 the male and female. The same remark applies also to T. insolenn; 

 in this species the sixth segment is truncate in the male, and feebly, 

 roundly lobed in the middle in the female. In insolens the two 

 mandibles are similar ; they are rather slender, feebly arcuate, 

 having internally just behind the middle a large oblique squarely 

 truncate tooth; the portion beyond this is very slender and has, just 

 before the apex, a small oblique tooth. 



ABROTELES n. gen. (Aleocharini). 



Borii/ rather robust, subparallel ; abdomen slightly inflated. 



Head nearly twice as wide as long, porrect, feebly convex ; sides very short, 

 parallel, feebly arcuate ; base inserted slightly within the prothorax, not in 

 the least constricted ; basal angles not exposed ; apex broadly arcuate between 

 the eyes, the latter rather large, finely faceted, not at all prominent, rounded, 

 slightly angulate above. Antemve inserted in small fovese on the vertical sides 

 of the front adjacent to the middle of the anterior margin of the eyes, and just 

 above the base of the mandibles, 11-jointed, very robust ; first joint obconical, 

 longer than wide ; joints two to eleven forming an elongate cylindrical club, 

 strongly tapering near the base and more feebly so near the apex, joined by a 

 narrrow point of support to the truncate apex of the basal joint at a point 

 near its lower margin, the joints separated by transverse sutures, apparently 

 mobile but each inserted far within the next preceding, subequal in length, 

 about one-third wider than long, except the second which is obconical and but 

 slightly wider than long, the third which is shortest and about twice as wide 

 as long, and the eleventh which is pointed, slightly compressed and as long 

 as the two preceding. Epistoina membranous, short, broadly trapezoidal, the 

 apex broadly sinuate, not separated from the front by a suture, the chitinous 

 portion of the front abruptly terminating at a broadly incurvate line between 

 the bases of the antennae, Lahrum well developed, prominent, twice as wide 

 as long ; sides and apical angles continuously rounded ; apex with a small 

 very deep median sinuation. Mandibles very short and stout, arcuate, slender 

 toward the acute apex, apparently with a large obtuse internal tooth at the 

 middle. Mentutn large, slightly longer than wide ; base and sides continuously 

 rounded ; sides slightly convergent in apical third and nearly straight ; apex 

 truncate ; surface flat, corneous in basal two-thirds, transparently membra- 

 nous in apical third, the line of demarcation sinuate and without visible 

 suture ; chitinous portion with two long erect setae near the centre, arranged 

 transversely and nearly trisecting the width. Ligula moderate, membra- 

 nous, with a short rounded simple median process, the paraglossae small, 



