J \J 



Termitopliilous StaphylinidcB . 385 



more narrowly so at the sides of the dilated basal portion, the sides and 

 base coarctate, and without basal angles, narrowed anteriorly, the sides 

 becoming broadly sinuate; apex truncate, angles right and scarcely 

 rounded; apical edge with two widely-separated setae. Ligula short 

 and broad, prolonged between the widely-separated palpi in a thick 

 membranous mass; palpi small, three-jointed; third joint slender and 

 subulate; basal joint more robust than the second. MaxillcE very large, 

 exserted and slightly visible from above; lobes small, robust, densely 

 ciliate; palpi very irregular, four-jointed; basal joint minute; second 

 large, strongly transverse, acutely ellipsoidal anteriorly, obliquely trun- 

 cate posteriorly, the truncate surface large, fiat, and membranous; third 

 one-half longer than wide, not one-half as wide as the second, slightly 

 narrowed toward apex, which is truncate; fourth oblique, slender, and 

 subulate. Mandibles slender, feebly arcuate, not extending beyond the 

 exserted membranous mass of the ligula, acute; the right with a small 

 acute tooth near the apex. Basal plate of maxillae prolonged outwardly 

 in a short, slender spine which is distinctly visible from above. 



Prothorax well developed, subquadrate. Pronotal hypomera narrow, 

 not very strongly inflexed, deeply emarginate almost to the lateral edge 

 anteriorly by the coxal cavities; the latter very large, approaching very 

 near the lateral edges and the apical margin, completely and widely 

 coalescent; the coxae completely surrounded by white membrane. 

 Prosternum very short, the median portion twice as wide as long, 

 slightly tumid, truncate behind, and not entering the intercoxal space. 

 Coxce rather large, compressed, feebly convex anteriorly, and with the 

 exterior edge rather acute. 



Mesotliorax short. Scutellum distinct. Mesosternal side-pieces ample, 

 diagonally divided, the suture straight and tangent to the elytral 

 humeri at base. Intermediate coxae distinctly separated, slightly shorter 

 than the anterior, moderate in size. 



Metathorax moderate, slightly exposed at the sides by the elytra; the 

 latter much shorter than the pronotum, apparently connate. Metaster- 

 num not impressed, convex, the episterna narrow and linear; epimera 

 not visible. Posterior coxae horizontal, conical, moderate, very nar- 

 rowly separated. 



Abdomen very strongly dilated, in great part membranous; the dorsal 

 plates entirely surrounded by white membrane, those forming the feebly 

 reflexed margins narrowly separated from the dorsal surfaces of the 

 segments; sides consisting of tumid white membrane, with a slender, 

 oblique setose line of chitinous material at the side of each segment. 



Legs slender, moderate in length, coarsely setose. Tibice without 

 trace of terminal spurs. Tarsi cylindrical, moderate in length, sparsely 

 setose, compressed throughout, five-jointed on all the legs, the fourth 

 joint anchylosed with the fifth, but distinctly visible; basal joint as 

 long as the two following, and, in the posterior, as long as the entire 



ANNAus N. Y. ACAD. OF SCI., rv. Issued March, 1889. 



