90 



The Genus Letznerella Reitter. 



Bestimmungstabelle der Borkenk., 68, 1913. 



Included by Hopkins in his Genus Ernoporides. 



L. jalappce Letzner is occasionally imported in Jalap root from Mexico 

 and Brazil. Not recorded from Canada. 



The Genus Procryphalus Hopkins. 



Hopkins; The Subfamily Cryphalinse, U.S. Dept. Agric, Office of Secy., 



Kept. 99: 33, 1915. 



Procryphalus striatulus Mannh.; Bull. Mosc, 235, 1853 (Cryphalus). 



Original Description: " Oblongus, fuscus, opacus, pube cinerea dense 

 vestitus; thorace pulvinato, tuberculis exasperato, antrorsum densioribus; 

 elytris evidenter punctato-striatis, interstitiis subtiliter ruguloso-punctatis ; 

 antennis pedibusque piceis. 



" Var. b. fusco-castanea; thorace rufescente, glabriusculo ; elytris 

 opacis, subsericeis ; antennis pedisbusque ruf o-piceis. 



" Longit, f lin.; Latit, | lin. 



" Kenai. 



" Cr. granulato Ratz. longior, thoracis tuberculis majoribus, densioribus 

 et elytris evidenter punctato-striatis diversus." 



This species is unknown to me; it has recently been placed in Procry- 

 phalus by Hopkins, loc. cit. 



The Genus Trypophloeus Fairmaire. 

 Gen. Col. Europe, 4: 105, 1868. 

 One species in our fauna. 



Trypophloeus nitidus Sw.; Can. Ent., 349, 1912. 



Length, 2 mm.; clothed with short, inconspicuous grey hairs of two 

 lengths; pronotum small, subtriangular from above; the elytra with rows 

 of punctures, striae hardly impressed; the interspaces finely confusedly 

 punctured, the whole body shining. The only species known from Canada. 



Host tree. — Alder. 



Distribution. — Weymouth, N.S. 



The Genus Gnathotrichus Eichhoff. 



Eichhoff, Berl. Ent. Zeit., p. 275, 1868. 



Key to the Species. 



A With the elytral declivity distinctly retuse; moderately to strongly 

 sulcate along the suture (denticulate along the summit). 



B The punctures of the pronotum and elytra very small but distinct 

 and rather deep; the front of the head coarsely punctured; the 

 interspaces of the elytra with the minute elytral rugulations rather 

 sparse; the declivity very strongly retuse. retusus Lee. Page 91. 



