320 Coleopterological Notices, V. 



the third but scarcely more than one-half as wide ; third rapidly 

 obtrapezoidal, as wide at apex as joints four to ten, which form a 

 compact cylindrical mass, each joint twice as wide as long and 

 deeply received in the excavated apex of the preceding, the sides 

 almost parallel ; eleventh conical, compressed, at base not quite as 

 wide as the fenth, as long as the preceding three. Mentum nearly 

 as long as wide, trapezoidal. Maxillary palpi well developed, the 

 third joint very much longer and thicker than the second ; fourth 

 distinct. Ligula with a long slender, apparently almost simple 

 process, the palpi rather slender, three-jointed, the first joint longer 

 than the second and subequal to the more slender third. Prothorax 

 transverse, the anterior margin transverse and deeply bisinuate, the 

 median lobe narrowly rounded, the apical angles somewhat ante- 

 riorly prominent ; hypomera moderately inflexed, visible from the 

 side, broadly triangular, not attaining the apex. Eh'tra large and 

 well developed. Abdomen parallel, with the sides strongly, evenly 

 arcuate; border moderate; first two segments ver}" large, together 

 constituting three-fifths of the abdomen, the first slightly the larger; 

 three to five very short ; sixth abruptly extremely narrow and but 

 slightly exposed. Coxae all large, the intermediate distinctly but 

 not very widely separated, the metasternal process extending ante- 

 riorly for nearly one-half their length, narrowly subtruncate at tip 

 and separated from the apex of the mesosternal, — which cannot be 

 clearly seen in the unique type, — by a short depressed isthmus. 

 Legs short, stout, covered with long stifi^ subdecumbent pubescence, 

 the tarsi filiform but stout, somewhat compressed, long, 4-5-5-jointed, 

 the posterior about as long as the tibiae, with the first joint elongate, 

 the first four rapidly decreasing in length, the fifth somewhat longer 

 than the first; ungues very long, extremely slender, feebly, evenly 

 arcuate and but slightly divergent. 



This remarkable genus is evidently myrmecophilons, or still more 

 probably, termitophilous, and is allied to Myrmedonia. The basal 

 tergite is broadly, deeply impressed and polished at base, the others 

 without trace of impression. 



I>. llisillliatR n. sp. — Moderately short and stout, subparallel, pale flavo- 

 testaceous throughout, the elytra rather albescent ; integuments polished, not 

 in the least reticulate ; head and pronotum coarsely, sparsely piinctate, the 

 elytra very nainuely sparsely and indistinctly so, the abdomen subimpunc- 

 tate, except along the apices of the tergites, where there is a row of close-set, 

 elongate, tubercular punctures bearing very long stiff setse, the under surface 



