Coleopterological Notices, V. 369 



Elytra more finely and densely punctate, black, each elytron pale at base 

 except near the scutellum, also narrowly along the suture in apical 

 two-thirds and along the apical margin ; abdomen finely, sparsely 



punctate lligriiia Csy. 



Prothorax on the disk as wide as the base of the elytra. Atlantic coast. 

 Abdomen coarsely, densely punctate ; carina of the fifth male tergite long 



and strong lllaiicliardi n. sp. 



Adomen finely, densely punctate ; carina of the fifth tergite extremely 

 small, reduced to a small point near apical fourth. 



marginella n. sp. 

 Elytra shorter ; " Flligeldecken wenig langer als das Halsschild." 



alternans Sachse. 



Silusa alternans, from its indicated size and coloration, seems to 

 be more appropriately placed in the present genus, but I have not 

 been able to identify it ; Silusa gracilis is however a trae Silusa, 

 and it may be possible therefore that Dr. Sachse vi^as not mistaken 

 as to the genus of alternans, but the coloration is certainly not at 

 all distinctive of Silusa, viz., '' rufo-picea, elytrorum angulo exte- 

 riore abdomineque ante apicem nigricantibus." Of notaia Makl. I 

 have several specimens, taken by Mr. Wickham at Fort Wrangel 

 and in Vancouver ; on the whole, it is a larger, stouter form than 

 californica, and differs specifically in abdominal sculpture. 



Homalota trimaculata Er. is possibly a Bolitochara allied to 

 hlanchardi, but joints five to ten of the antennae are said to be 

 transverse in that species. 



B, 'blancliardi. — Pale flavo-testaceous, the head, pronotum except 

 feebly along the sides and base, elytra toward the external apical angles and 

 feebly near the scutellum, abdomen feebly at the middle near the bases of the 

 first three segments, throughout the fourth and in basal two-thirds of the fifth, 

 blackish ; antennae fuscous, the last joint somewhat less dark, the first four 

 pale flavate ; head feebly but distinctly, rather sparsely punctate, the pro- 

 notum and elytra strongly asperately and densely so, the latter slightly the 

 more coarsely ; abdomen strongly and closely but not so densely punctate ; 

 pubescence fine, very short, not conspicuous. Head orbicular, convex, about 

 as long as wide, nearly three-fourths as wide as the prothorax ; eyes very 

 large, separated from th* base by about one-half of their own length ; antennae 

 distinctly longer than the head and prothorax, incrassate, first three joints 

 elongate, third a little shorter tlian the second, tenth scarcely wider than long, 

 a little longer and less transverse than the ninth. Prothorax transverse, four- 

 fifths wider than long, widest and broadly subangulate at basal third ; sides 

 convergent and feebly arcuate thence to the apex ; base broadly arcuate, much 

 wider than the apex ; basal angles distinct but blunt ; disk convex, strongly 

 biimpressed in the middle near the base. Elytra slightly transverse, a little 



