No. 2353. GENOTYPES OF THE ELATERIDAE—HYSLOP. 641 



Dipropus Gebmar. 



1839, Zeit. f. d. Ent., vol. 1, p. 215. Three species. 



Type. — Elater pexus Geemab, Ins. Sp. Nov., p. 55, 1824. (Present desig- 

 nation. ) 



Note. — Candeze (1859) divides tliis genus, placing part of the species in 

 AnopUscMus Cand£:ze and the remainder, including the type in Ischiodontus 

 Candeze. 

 Dodecacius Schwarz. 



1902, Deut. Ent. Zeit., p. 153. Two species. 



Type. — Dodecacius testaceus Schwakz. (Present designation.) 



Note. — Tlie other species D. nigricollis Schwakz is described as possibly 

 the female of D. testaceus Schwarz. 

 Dodecactenus Canonize. 



1889, Elat. Nouv., fasc. 4, p. 36 (102). 

 Type. — Dodecactenus staudingeri Candi&ze. (Monobasic.) 

 Dolerosomus Motschulskt. 



1859, Bull. Soc. Imp. Nat. Moscow, vol. 32, pt. 2, p. 382. Three species. 

 Type. — Dolerosomus flaxnpennis Motschulsky. (Present designation.) 



Note. — Candeze (1863) reduces the type to synonymy under Sericosomus 

 (Atractopterus) umbraticus LeConte (1853). 

 Dolopiosomus Motschulsky. 



1859 Bull. Soc. Imp. Nat., Moscow, vol. 32, p. 380. 



Type. — Dolopiosomus aterrimus Motschulsky. (Monobasic.) 



Note. — Gemminger and Harold (1869) reduce the genus to synonymy 

 under Ludius Latkeille and the type to synonymy under Ludius tartareua 

 LeConte. O. Schwarz (1906) reduces the type to synonymy under Tricho- 

 phonis tartareus LeConte. 

 [Dolopius (EscHSCHOLTz) emend.] =Dalopius Eschscholtz. 



1836, Silb. Rev. Ent., opposite p. 5. In table, no species included. 

 Type. — Dolopiosomus aterrimus Motschulsky. (Monobasic.) 



Note.— J^Zoier marginatus Linnaeus, type by designation of Westwood, 

 Int. Mod. Class. Ins., vol. 2, Gen. Syn., p. 25, 1840, is not originally included. 

 CandSze (1863) reduces the genus to synonymy under Sericosomus Redten- 

 bacher, and places Elater marginatus Fabricius in synonymy under Seri- 

 cosomus marginatus Linnaeus. Gemminger and Harold (1869) reduce the 

 genus to synonymy under Sericus Eschscholtz. 

 Doloporus Candeze. 



1887, Not. Leyden Mus., vol. 9, p. 289. Two species. 

 Type. — Doloporus aterrimus Cand£;ze. (Present designation.) 

 Dorcostoma Newman. 



1857, Trans. Ent. Soc. London, new ser., vol. 4, p. 52. 



Type. — Elater (Dorcostoma) jansoni Newman. (Monobasic.) 



Note.— Gemminger and Harold (1869) reduce the genus to synonymy 

 under Aphileus Cand£;ze, and the type to synonymy under A. lucanoides 

 CandI;ze. 

 Dorygonus Candeze. 



1S59, Monogr. Elat., vol. 2, p. 182. Six species. 

 Type. — Dorygonus amaurus Candeze. (Present designation.) 

 181404— 21— Proc.N.M.vol.58 41 



