318 Coleopterblogical Notices, V. 



New York (Catskill Mts.). 



The description is taken from the male ; in the female the prono- 

 tum is almost perfectly even, without an impressed median line but 

 with two large feeble and approximate impressions near the base 

 before the scutellum, and, apparently, an extremely obsolete median 

 impression near the apical margin. I place with this species a 

 single male from Austin, Texas, which is very similar but a little 

 more robust and with more finely and densely punctate elytra. 



The evenly imbricate sculpture of the abdomen above and beneath 

 is a very striking feature. 



MICRODO]¥IA n. gen. 



Body parallel, rather depressed. Head broadest behind the eyes, 

 the latter situated at their own length from the base, convex and 

 rather prominent, the tempora rounded, slightly more prominent 

 than the eye ; neck moderate in width, the occiput adjacent to the 

 pronotum nearly throughout. Labrum short, broad, truncate. 

 Antennae rather long, incrassate, inserted in small foveas very near 

 the eyes. Mentum large, flat, trapezoidal, truncate at apex. Max- 

 illary palpi normal, the fourth joint subulate, oblique, distinct. 

 Ligula with two minute slender parallel and approximate processes 

 at apex, the labial palpi distinct, the two basal joints cylindrical, the 

 second the shorter, third nearly as long as the two preceding, very 

 slender, arcuate near the base. Intraocular carina completely want- 

 ing. Prothorax nearly flat, rather abruptly declivous at the sides, 

 the acute lateral line very feeble ; hypomera moderately inflexed 

 and greatly visible from the side. Abdomen parallel, the basal 

 segment alone transversely impressed and impunctate at base ; 

 second a little longer than any of the others; fourth and fifth nearly 

 equal Intermediate coxae moderately but distinctly separated, the 

 mesosternal process very short, parabolic, indefinitely limited at 

 apex, the metasternal also short but acute, separated from the 

 mesosternal by quite a long polished transversely convex isthmus ; 

 middle acetabula apparently deep and sharply defined. Meta- 

 sternum well developed, the episterna wide, parallel, the epimera 

 large, broad behind and extending slightly behind the elytra, gradu- 

 ally attenuate anteriorly and disappearing under the elytra at the 

 middle of the latter. Tibiae rather long, the anterior very slender, 

 not at all spinose, the terminal spurs small and slender ; tarsi with 

 4-5-5 joints, the posterior very long and slender, as long as the 



