5850 Insects. 



4. Fam. Hylesinid^e, Shuck. 



1. Hylastes, Erich., Steph. 



H. ater, Payk., Steph. Not common. 



H. fuscescens, Steph. Rare ; in old trees. 



2. Hylesinus, Fab?'., Steph. 



H. crenatus, Fabr., Steph. One specimen taken. 

 H. Fraxini, Fabr., Steph. Local ; occasionally seen flying in little 

 clouds in the sun. 



5. Fam. Bostrichida:, Schaum. 



1. Dendroctonus, Erich., Steph. 



D. piniperda, Linn., Steph. A single specimen captured. 



2. Scolytus, Geoff., Steph. Ekkoptogaster, Herbst. 



S. Destructor, Oliv., Steph. Ekkoptogaster Scolytus, Herbst. In 

 old elms, burrowing under the bark ; common. 



S. pygmseus, Fabr., Steph. In felled trees, under the loose bark ; 



rare. 



Wm. Balfour Baikie. 



Determination of the Species of Panorpina, Ephemerina, Hemero- 

 biina, fyc, described by Mr. Stephens in his c Illustrations of 

 British Entomology.'' By H. Hagen, M.D.* 



Panorpina. 



Boreus hiemalis, Steph. III. Brit. Ent. Mand. vi. 51 = Panorpa 

 hiemalis of Linneus. 



Panorpa communis, Id. p. 52 = P. communis of Linneus. 

 Panorpa affinis = P. germanica of Rambur, not of Linneus. 

 Panorpa apicalis is a new species, and = the P. montana of Brauer. 

 Panorpa borealis, Id. p. 53. Of this species there is no specimen. 

 Panorpa germanica = P. germanica of Linneus. 



Ephemerina. 



Ephemera vulgata, Id. p. 55 = E. vulgata of Linneus. 

 Ephemera cognata, Id. p. 56 = E .danica of Miiller. 



* Obligingly communicated by Dr. Gray, of the British Museum. 



