ROLAND HAYWARD. 123 



the fifth represented by a groove at apex ; intervals slightly convex, the third 

 with the first dorsal puncture about one-third from base, the second about one- 

 third from apex. Beneath black or dark piceous, shining. Legs rufo-testaceous. 

 Length .10-.13 inch ; 2.5-3.2.5 mm. 



This species appears in American literature as lampros Herbst. 

 This determination is erroneous, as is shown by an examination of 

 authentic specimens of that species received from Mr. G. C. Cham- 

 pion, of London, by the Museum of Comparative Zoology at Cam- 

 bridge. 



It having been determined as lampros by the late Mr. H. W. 

 Bates, it seemed quite possible that that name might have been sent 

 by him, by mistake, instead of that of some other European species. 

 A specimen was accordingly sent by me to Mr. Champion, who has 

 kindly studied it, and who informs me that it is distinct from any 

 European .species known to him, being " nearest allied to B. {Lopha) 

 shuppelli Dej." 



It is easily recognizable from the preceding by its broader thorax, 

 ^vhich is much less strongly narrowed behind, with the basal impres- 

 sions bistriate. The elytra also differ in being but slightly wider 

 than the thorax and unicolorous. 



Mr. W. H. Harrington informs me that he has taken it in mod- 

 erate abundance by moss sifting. 



It is known to me from Ottawa, Canada (Harrington), the White 

 Mountains of New Hampshire, Massachusetts (Cambridge, Lowell), 

 Rhode Island, Michigan and northern Illinois, and I have seen two 

 specimens labeled " California." 



Group xvi. sulcatum. 



Maxillae with the outer lobe biarticulate. Frontal grooves double, 

 scarcely converging, the outer entire; eyes large and prominent. 

 Elytra with the humeri rounded ; dorsal punctures two, situated on 

 the third interval. 



The following is the only species known to me : 



112. B. sulcatum Lee. — Form slightly elongate, moderately convex ; color 

 black, shining, often tinged with greenish, the elytra usually with a submarginal 

 spot about one-fourth from apex, and the apex testaceous. Head as wide as the 

 thorax at apex; palpi rufo-piceous; antennse about one-half the length of the 

 body, rufo-piceous, the basal joints paler. Prothorax subquadrate. rather more 

 than one-half wider than long, slightly narrower at base than apex ; apex nearly 

 truncate; median line distinct, subentire; transverse impressions distinct ; basal 

 impressions broad, dee]), bistriate ; sides with the margin narrowly reflexed, ar- 

 cuate to behind the middle, slightly sinuate in front of the hind angles, which 

 are rectangular and carinate. Elytra distinctly wider than the thorax, oblong- 



TEANS. AM. ENT. SOC. XXIV. MAY, 1897. 



