NEW AMERICAN SCOLYTOID BEETLES — BLACKMAN 375 



CNESINUS SIMILIS, new species 

 Plate 15, Figitres 7, 8 



Male. — Dark piceous-brown ; 1.94-2.37 mm. long, holotype 2.2 mm. 

 long, 2.33 times as long as wide ; similar to porcatus Blandford and 

 costulatiLs Blandford but differing in the shape and in the vestiture of 

 the elytra and especially in the frontal structures. 



Frons (fig. 8) somewhat similar to that of porcatus but with the eyes 

 closer together above, the transverse carina even more strongly ele- 

 vated, tlie triangular area above more flattened and brilliantly shin- 

 ing, the ventral area moderately punctured, wdth fine, rather short 

 hairs (much finer, shorter, and less abundant than in porcatus)^ the 

 hairy area extending at sides to slightly above the eyes. Eye narrower 

 above than below the shallow emargination, facets moderately coarse. 

 Antenna reddish brown, 7-segmented funicle about as long as scape, its 

 distal segments slightly widened, club 1.8 times as long as wide, first 

 two sutures distinctly septate. 



Pronotum 1.03 times as wide as long, posterior outline distinctly 

 bisinuate, posterior lateral angles not rounded, sides nearly straight 

 and subparallel on posterior half, then arcuately narrowed, very broad- 

 ly rounded in front ; surface strigose, with narrow^, shining interstices, 

 transversely impressed near front margin, vestiture fine, rather scanty. 



Elytra wider than pronotum and 1.69 times as long, 1.48 times as 

 long as wide (stouter and proportionally shorter than in porcatus) ; 

 bases separately rounded, sides nearly straight and subparallel on 

 more than anterior half, then gradually, arcuately narrowed to a 

 slight constriction, moderately rounded at tip ; striae rather wide and 

 deep, punctures large on anterior third, small and inconspicuous be- 

 hind ; interspaces of nearly equal width, sulcate on disk and sides, outer 

 wall of sulci higher and wider, with fine punctures and fine, short 

 hairs (smaller and less conspicuous than in porcatus) ; declivity mod- 

 erately sloping, first interspace obscurely sulcate, the others subcostate, 

 not sulcate, hairs larger and more numerous than on disk but much 

 less numerous and conspicuous than in porcatus. 



The female is unknown. 



Type locality. — Porto Bello, Panama. 



Host. — Unknown. 



Type material. — Holotype male and 3 male paratypes, U.S.N.M. 

 No. 56552. 



The type series was collected by E. A. Schwarz, February 28 and 

 March 1, 1911. 



CNESINUS FOVEATUS, new species 



Plate 15, Figukes &-11 



Piceous-black, with elytra very dark brown; 2.06 mm. long, 2.25 

 times as long as wide. 



