Sept-Dec, 1918.] NOTMAN : BoRKAPHILUS. 183 



The type species is B. hciiiiiiigianiis Sahib. (Erichs., /. c. ; Kraatz, 

 Berl. Ent. Zeits., I, 1857, p. 41.) 



The genus was enlarged by Lacordaire to include Coryphinm 

 Steph. (Steph. 111. Brit. Ent., V, p. 344; Lac, I. c, p. 137)— a change 

 suggested by Erichson (/. c, p. 900). Neither of these authors 

 had seen specimens of Coryphimn (angusticoUc, Steph.), nor are 

 specimens now at hand. A good figure, however, is given in a paper 

 by Dr. Kraatz (Berl. Ent. Zeit., I, 1857, taf. I), where it may be seen 

 that Coryphinm differs much in form from Borcaphihis but bears a 

 strong resemblance to Eudectns, differing from the latter in the less 

 sharply angulate sides of the thorax. The thorax of Coryphinm is 

 obcordate (Steph., I. c. ; Muls. et Rey, Soc. Linn. Lyon, p. 392) ; that 

 of Boreaphilus is oblong and subangulate a little before the middle. 

 A difference in the antennae is also given ; in Coryphinm scarcely 

 thicker towards the extremity with the first two joints scarcely in- 

 crassate ; in Boreaphilus distinctly thicker towards the extremity with 

 the first joint strongly incrassate, the second a little less so. (Muls. 

 et Rey, /. c.) However, this thickening of the outer joints of the 

 antennas is more apparent in B. velox than in B. henningianus, which 

 is not included in the work of Mulsant and Rey here cited. Coryphinm 

 is placed as a distinct genus in the Catalogus of Gemniinger and 

 Harold (H, p. 664), and in subsequent authors. 



These genera, Boreaphilus, Coryphinm, Endectus and the genera 

 Niphetodes and Ephelinus {Ephelis) are placed together in a well- 

 marked group of the Omaliini, differing by the strongly incrassate 

 and truncate third joint of the maxillary palpi and the small subulate 

 fourth joint. 



Another genus now regarded as a synonym of Boreaphilus de- 

 serves mention — Chevrieria was described by Heer. (Fn. Helv., I, 

 1838-1842, p. 188.) It has been impossible to consult this descrip- 

 tion, but the genus is said to have been separated from Boreaphilus 

 by a character — the presence of a strong tooth on the mandibles (Kr., 

 I. c., p. 36), since found to be also present in Boreaphilus. The type 

 species, B. vclox Heer, differs from the other Boreaphili in the pres- 

 ence of fully developed wings, which seems to have escaped notice, 

 for none of the authors consulted, with one exception mention the 

 fact that the under wings in B. henningianus are almost entirely 

 aborted and unsuited for flight; the exception being the description 



