66 Coleopterological Notices, III. 



finely striate, the striae feebly but distinctly impressed, finely punctate, the 

 intervals minutely, sparsely and confusedly punctured. Abdomen finely, not 

 very densely punctate. Length 3.8 mm. ; width 1.3 mm. 



Florida. 



I owe the above-described specimen to the kindness of Mr. W. 

 Jiilich, in whose cabinet there is a considerable series, di.spla^^ing 

 scarcely any variation. 



RUES n. gen. 



This name is proposed for a distinct genus belonging near Hege- 

 mona Cast., and represented by the species recently described by 

 me under the name Helops ompennis (Ann. N. Y. Acad., Y, p. 48t). 



It resembles Hegemona in the unusually wide mesosternum, 

 nearly flat between the coxaj, and in the exceedingly short meta- 

 sternum, but differs in the wider elytra, extremely broad epipleurte 

 and very short slender legs. 



HELOPS Fab. 



Both of the following species are related to bachei, and should 

 immediately follow that species in our lists : — 



H. 'blaisdelli n. sp. — Oblong-oval, rather strongly convex, piceous- 

 black, the elytra castaneous ; antennse and legs throughout rufo-testaceous ; 

 integuments glabrous and strongly shining. Head feebly convex, rather 

 coarsely, deej^ly, moderately densely punctate, the punctures longitudinally 

 coalescent, forming long furrows and rugfe ; eyes prominent and convex ; 

 antennse slender, filiform, nearly one-half as long as the body, joints four to 

 ten elongate, evenly obconical, subequal, eleventh a little longer, third much 

 longer. Prothorax transverse, one-half wider than long and four-fifths wider 

 than the head ; base and apex subequal and both transversely truncate ; sides 

 strongly and almost evenly arcuate ; apical angles broadly obtuse and nar- 

 rowly rounded, basal very obtuse but scarcely rounded ; marginal bead very 

 fine and feebly developed throughout the length ; disk very much wider at 

 basal third than at base, evenly convex, somewhat coarsely, deeply, rather 

 densely and unevenly punctate thi-oughout, the punctures but slightly sparser 

 toward the middle, toward the sides more or less longitudinally coalescent in 

 twos or threes. Scutellum broadly ogival. Elijtra two and one-half times as 

 long as the prothorax and not in the least wider than the latter in any part, 

 four-fifths longer than wide ; sides parallel and nearly straight ; apex obtusely 

 ogival ; humeri rather broadly exposed at base, slightly obtuse, narrowly 

 rounded ; disk rather finely striate, the strise entire, not impressed but 

 abruptly grooved, the punctures elongate, moderate but uneven in size and 

 mutual separation ; intervals flat, feebly and confusedly undulated, finely, not 



