178 AMKKICAN COLEOPTERA. 



that if I were to mix a lot of our California species with :i series of 

 similata from Austria and Northern Mongolia received from Reitter, 

 and then remove the labels, it would be impossible to again separate 

 them. 



Similata is known from various points in Siberia, and there is no 

 doubt that its presence here is explainable in the same manner as 

 that of numerous other species common to Siberia and the Northern 

 Pacific coast region of this Continent. Belon cites do North Ameri- 

 can localities for this species, but gives Colombia in South America. 

 Subimpressa Zimm. is not a synonym of similata as stated in our 

 check list, but of simplex, as has been stated under that species 



I have, though not with extire confidence, placed Icevis Lee. in 

 synonymy; the only difference noted, on a brief examination of the 

 type, being that of color (pale testaceous) ; a further study would be 

 desirable, but is not now possible Lavis was described from Yuma. 



M. regular!* Lee. — Brown, legs and basal joints of antenna? pale. Head 

 narrower than the thorax, faintly sparsely punctulate ; tempora short, yet dis- 

 tinct. Prothorax a little wider in front of middle, sides feebly rounded and a 

 very little convergent posteriorly : sides with the usual tooth at the basal angles, 

 but less prominent than in americana ; punctuation moderately close and even, 

 basal fovea somewhat vague and extending laterally to form a transverse depres- 

 sion. Elytra rather large, somewhat truncate at apex, nearly twice as wide as 

 the prothorax ; striae unusually strongly impressed; punctures of intervals very 

 fine, those of the stria' quite coarse. Legs rather slender; second joint of hind 

 tarsi but little shorter than the first. Length 1.6 mm. 



Hab. — New Jersey. 



The above short description was taken from the LeConte type a 

 year ago, and in the light of later experience another examination 

 would possibly show it to be identical with the preceding species ; 

 the size is a little larger, however, and there are some other small 

 differences in the descriptions. 



M. terricula sp. nov. — Elongate-oval, convex, brown, legs and antenna? — 

 except the outer joints — testaceous; pubescence short, recumbent. Head three- 

 fourths as wide as the prothorax, punctate; eyes moderate, tempora subobsolete; 

 antennae not quite as long as the head and prothorax, all joints longer than wide. 

 Prothorax transverse, about three-fifths as wide as the elytra, sides nearly evenly 

 and not very strongly rounded ; margin obsoletely crennlate, hind angles marked 

 by a moderately prominent denticle; surface distinctly punctate, the punctures 

 separated by about their own diameters, a little less close at the middle of the 

 disk; a moderately deep fovea before the middle of the base, and a broader fee- 

 ble impression each side before the hind angles. Elytra moderately strongly 

 punctate-striate, the punctures of the intervals much finer. Abdomen very 

 finely, sparsely punctulate; a few coarser punctures at the sides of the metaster- 

 iiuiii and along the front and side margins of the prosternum. Middle coxa/ 

 separated by three-fifths the coxal width. Sixth abdominal segment suhequal in 



