Lucanoid Coleoptera. 61 



Dorcus costat'us. 

 Leconte, Proc. Ac. Philad. 1866, p. 380. 



This species is stated to be only an extreme var. $ of 

 D. paralleliis (see Coleopt. United States List, add. 

 1867). 



Dorcus eurycephalus, Burm. 



When my former Catalogue was published, but little 

 information was available for the exact determination of 

 this species of Dr. Burmeister (Handb. v. 387) ; accord- 

 ingly, I then followed in the footsteps of Mens. Reiche 

 and Professor Lacordaire, by placing it as a synonym 

 of E. huhalus, Perty, notifying at the same time the 

 possibility of its being distinct. This view has now proved 

 to be correct, according to Mens. v. VoUenhoven, who (in 

 the Tijd. V. Ent. 1865, p. 151) has described a specimen 

 from the Leyden Museum. I have recently seen another 

 specimen in the Berlin Museum, corresponding with the 

 figure given, and having Dr. Burmeister's name attached ; 

 possibly it may be the type specimen. E. eurycephalus 

 appears to be allied to E. Saiga and E. purpurascens, 

 differing considerably in the form of the clypeus, as well 

 as in many other respects pointed out by the author ; 

 with E. 8auja and E. purjnirascens, this makes the third 

 species of the genus which has the interior of the man- 

 dibles partially clothed with silken pubescence. 



Dorcus punctatostriatus, Redt. 



The author, in his notice of this insect, alludes to the 

 probability of its being identical with D. lineatopunetatus , 

 Hope, Zool. Misc. p. 22, a species recorded in my former 

 publication as being the ? of Eurytrachelus Tityus. The 

 description of the two insects corresponds so entirely, that 

 I have little hesitation in adhering to my former opinion, 

 that D. punctatostriatus cannot be considered as a dis- 

 tinct species, but be referred to D. lineatopunetatus. 



Dorcus ruhrofemoratus , G. & H. Cat. Col. iii. 958. 



Eurytrachelus ruhrofemoratus, Vollenh. Tijd. Ent. 1865, 

 p. 152, pi. xi.%. 1, 2, (?, 9. 



This new species, discovered by Siebold and Bur- 

 ger, in Japan, ought to be located near Eurytrache- 



