NEW AMERICAN SCOLYTOID BEETLES — BLACKMAN 393 



The locality. — Bolivia, South America. 

 Host. — Unknown. 



Type material. — Holotype and 4 paratypes, U. S. N. M. No. 56570. 

 The type series was collected by G. L. Harrington in the Depart- 

 ments of Beni and La Paz, Bolivia, in August and September 1925. 



PHRIXOSOMA OBESA, new species 



Dark cinnamon-brown with elytra lighter, 2.36 mm. long, 1.86 

 times as long as wide; smaller and slightly stouter than Phrixosoma 

 magna, new species. 



Frons convex, surface opaque, densely, finely granulate, with very 

 fine, indistinct median carina on lower half, transversely impressed 

 above epistomal margin; vestiture fine, short, inconspicuous except 

 in profile, slightly longer on epistoma. Eye entirely divided into 

 two parts, separated by a broad area having the texture and vestiture 

 of the frons ; facets rather small. Antenna apparently similar to that 

 of magna., new species (no balsam mounts available). 



Pronotum 1.26 times as wide as long, widest at base ; posterior out- 

 line bisinuate, submargined toward sides, posterior lateral angles 

 sharp ; sides arcuately narrowed from base to broadly rounded front 

 margin; surface subopaque, finely, densely granulate-punctate, with 

 fine, short hairs, conspicuous only with proper lighting; median line 

 narrow, elevated, shining, and impunctate, evident only on posterior 

 third. 



Elytra wider than pronotum and 1.84 times as long, 1.31 times as 

 long as wide; bases submargined, granulate; sides nearly straight, 

 very feebly arcuate on anterior two-thirds, apex moderately rounded ; 

 surface opaque, cinnamon-brown; striae narrow, deeply impressed, 

 punctures small, indistinct, close; interspaces wide, nearly flat on 

 disk, convex behind, finely, closely granulate, with fine, rather short, 

 silky, yellow-cinereous hairs, similar throughout. 



Type locality. — Gatun, Panama Canal Zone. 



Host. — Unknown. 



Type material— Holotyipe, U. S. N. M. No. 56572. 



The holotype was taken by E. A. Schwarz on April 7, 1911. 



PHRIXOSOMA PARVA, new species 



Piceous-brown, subopaque, with elytra slightly lighter, 2.10 mm. 

 long, 2.16 times as long as wide. 



Frons convex, surface opaque, densely, finely granulated, with very 

 fine, indistinct median carina on lower half, epistoma slightly im- 

 pressed at each side; vestiture short, fine, inconspicuous, longer on 

 epistoma. Eye bipartite, the smaller upper portion entirely sepa- 



