- 5 6- 



Male: Front excavated, excavation smooth at middle and anteriorly 

 with a small tubercle. Tubercles on the elytral declivity more prominent. 



Female: Front not excavated, but with a narrow median carina not 

 reaching the vertex. Tubercles on the elytral declivity smaller. 



These sexual characters are nearly the same as in the European 



P. thuja. 



Phlceosinus serratus. 



Can this be the male of dentatus? The specific differences given by 

 Dr. Leconte are about the same as those between the two sexes of the 

 Kuropean Ph. Aubei. Both forms, that with alternately elevated elytral 

 interstices {serratus) and that with equal interstices (denlatus) have the 

 same food plant (Juniper), were beaten by Mr. Ulke and myself from 

 the same trees, and have the same geographical distribution. Still, ab- 

 solute proof of their identity is wanting, but the question can be easily 

 settled by anyone who has the opportunity of finding colonies of the 

 beetle still in their larval galleries Both forms are widely distributed, 

 occurring from Maine to Florida and from Dakota to Texas and Arizona, 

 and I can see no reason why Ph. Haagi Fichh., (Berl. Ent. Zeit. 1868) 

 should not be synonymous with dtntatus, and Ph. graniger Chap. (Syn. 

 (1. Scol., p. 247) with serratus. 



Dendroctonus. 



I have lately examined, in company with Mr. Ulke, a large series 

 of specimens in our collections, and we found that our species could be 

 sharply separated and all difficulties in their determination removed if 

 J), rufipennis, punclatus and simplex were considered to form a single 

 species, variable in size and sculpture of head and thorax. The variation 

 in size between these three forms is not greater than that exhibited in D. 

 terebrans and the same sculptural differences may also be observed in the 

 latter species. However, nothing definite can be said before the life- 

 history of the different forms has been studied. 



Crypturgus atomus 

 seems to be identical with the European C. pitsillus Gyllh. (see Eichhoff, 

 Europ. Borkenk., p. 166). 



Hylurgops pinifex 

 is synonymous with the European Hyhxstes glabraius Zett. 



We regret to record the death of Mr. Fredk. W. Klages ofPittsbugh, Pa., who 



died of pneumonia on the 27th day of March 1886 in the 27th year of his age. Mr. 

 Klages was an enhusiastic collector, and though a mechanic, with little time to spare, 

 yet gathered a considerable collection. He collected in Kentucky, Florida and Ta- 

 maica as well as in the vicinity ofTittsburgh. 



Entomology can ill afford to lose a young man k> enthusiastic .1- Mr. Klages in 

 his chosen study. 



