318 Coleopterological Notices, V. 



rather longer than wide, one-fourth wider and one-third longer than the 

 prothorax, parallel and straight at the sides, the humeri distinctly exposed ; 

 suture deeply, narrowly impressed just behind the scutellum. Abdomen 

 scarcely as long as the anterior parts, linear, distinctly narrower than the 

 elytra, the sides parallel and straight ; first four segments narrowly deeply 

 and equally impressed at base, the impressions more coarsely punctate ; fifth 

 much longer than the fourth. Length 1.45 mm. ; width 0.25 mm. 



New Jersey. 



The single specimen seems to be a female. This species is by far 

 the most minute of the genus, and is somewhat aberrant in its 

 sparser punctuation. 



BA]!tfO:^A Sharp. 



A small Californian species is referred to this genus, but not 

 without some doubt. It cannot be associated generically with 

 Gyronycha, although the tarsi are four-jointed throughout and the 

 tarsal claws similarly abruptly bent downward, for the reason that 

 it differs in having a distinctly falagrioid habitus and in its short 

 transverse abdominal segments; it also differs conspicuously in the 

 structure of the sterna between the middle coxae. The mesosternum 

 is only very slightly produced between the coxag and forms a very 

 short broad and gradually depressed cusp; behind this cusp the 

 narrow but perceptible space between the coxae is depressed, form- 

 ing a low rounded ridge, gradually regaining the level of the meta- 

 sternum behind but without trace of a metasternal process defined 

 by an acute line or bead ; the coxal cavities are gradually less im- 

 pressed and not well defined behind. At a very short distance 

 behind the mesosternal cusp there appears, however, to be a fine 

 transverse suture in the depressed ridge, and this may constitute 

 the anterior limit of the metasternum proper. The posterior tarsi 

 are rather long and slender, but the neck seems to be much broader 

 and the antennae shorter than in the Central American forms. 



Although I am not sure, therefore, of the generic identity of the 

 present species, its discovery is interesting in proving that these 

 peculiar hygronomoid species form an important element in the 

 Aleocharini of America, and include at least several distinct genera. 



B. falliana n. sp. — Narrow, slightly convex, polished throughout, 

 piceous-black, the antennae black, paler at base ; legs pale, brownish-flavate 

 throughout ; head finely, \ery sparsely punctulate ; pronotum equally minutely 

 but much more closely, evenly punctulate, each puncture having a very minute 

 stout decumbent hair quite different from those of any other part of the body, 



