Mr. James Thomsons Catalogue of Lucanidce. 449 



and others, the name of Hemisodorcus has also been judiciously se- 

 lected. 



If, however, the law as laid down and upheld by certain Ento- 

 mologists is to be stringently applied, Mr. Thomson's Megalo- 

 prepes may also be changed, Mons. Rambur having long previously 

 applied the name of Megaloprepus to a genus of Libellulidce, and 

 as I believe that the generic appellation of Cyclommaius is vacant, 

 I beg to propose it ; its signification being in accordance with that 

 of Cyclophthalmiis . 



21. Platyprosopus, Hope; Thomson, Cat. p. 421. 



I am astonished that this name has been permitted to pass un- 

 noticed, it being a fine opportunity for the author's adding another 

 jewel to his generical crown, as I find that it has already been 

 employed twice in the order of Coleoptera, once by Latreille for a 

 genus of the Tetramera, and again by Mannerheim in the Sta- 

 phylinidce. 



22. Dorcus diabolicus, n. sp., Thomson, Cat. p. 423. Japan. 



This species has already been described and figured, under the 

 name of D. Niponensis, v. Vollenhoven, Tijdschrift v. Entomologie, 

 1860-61, p. 13, pi. vii. fig. 3; it has been received rather abundantly 

 from Japan in the collection recently sent over by Mr. Fortune to 

 S. Stevens, Esq. 



23. Eurytrachelus cribriceps, Chevrolat ; Thomson, Cat. p. 308. 

 Phillippines, Manilla. 

 Syn. Dehaanii, Hope. 



Manifold have been the vicissitudes respecting the nomencla- 

 ture of this species, Mons. Chevrolat's name having undoubted 

 priority : his description was published in the Revue Zoologique, 

 p. 224, 1841 ; as he therein states, " mandibulis brevibus, intus 

 unidentatis," I conclude it to have been made from the 2 , pos- 

 sibly however from a small undeveloped ^. In 1845, the late 

 Rev. F. W. Hope described the same insect under the name of 

 Lucanus Moloschus (vid. Cat. p. 21), and finally Dr. Burmeister in 

 his Handbuch der Entomologie, 1847, p. 389, designates it as 

 Dorcus Oryx, from Manilla. 



Mr. Thomson is in error respecting the synonym L. Dehaanii, 

 Hope. This latter species is the var. minor $ of Dorcus Antceus, 

 Hope, originally published in Ann. Nat. Hist. vol. 12, p. 364, 

 and re-described in his Catalogue, p. 20 ; from Assam. 



VOL. I. THIRD SERIES, PART V. FEB, 1863, H H 



