No. 2353. GENOTYPES OF THE ELATERIDAE—HYSLOP. 655 



[Malanathous Reitter, typ. err.]=MelanathOTis Reitter. 



1905, Bestim. Tab., Heft 56, p. 115. 

 Tyg^.-^Melanathous scquensi Reitteb. 



Malmelater ^ Handlirsch. 



1908, Die Fossileu Insect., vol. 1, p. 541. Four species. 



Type. — Elater costeri Weyenbergh, Arch. Mus. Teyler, vol. 2, p. 284, 1869. 

 (Present designation.) 

 Margogastrius ScHWARZ=(Gastriinargus Schwarz, not Spix, 1823). 



1903, Deut. Ent. Zeit., p. 89. New name for Qastrimargus Schwarz, pre- 

 occupied. 



Type. — Gastrimargus sclmeideri Schwarz. 

 Mecastrus Sharp. 



1877, Ann. Mag. Nat. Hist., p. 469. Three species. 



Type.— J/cmsin<s convexus Sharp. (Present designation.) 

 Mecothorax Solier. 



1851, Gay, Hist. fis. Chile Zool., vol. 5, p. 22. 



Type. — 21ecotliorax castanipennis Solier. (Monobasic.) 



Note. — Candeze (1860) reduces the genus to synonymy under Deromeciis 



Solier. 

 Mecynocanthus Hope. 



1837, Trans. Ent. Soc. London, vol. 2, pt. 1, p. 53. 



Type. — j]lecynocanthns unicolor Hope. (Monobasic.) 

 Medonia Candeze. 



1860, Mouogr. Elat., vol. 3, p. 17. 



Type. — Bedresia punctaio-sulcata Solier, Gay. His. fis. Chile, Zool., vol. 5, 

 p. 25, 1851. (Monobasic.) 

 Megacentrus ^ Heer. 



1852, Liasinsel., pp. 14-15 and 37-38. 



Type. — Megacentrus tristis Heer. (Monobasic.) 

 Magacnemis (Esehscholtz) Schwarz, emend. )^(Megacnemius Laporte ue 

 Castelnau.) =Tomicephalus Latreille. 



1906, Gen. Ins., fasc. 46, p. 255. 



Type. — Megacneniius sanguinicoUis Latkelle. 



Note. — O. Schwarz (1906) reduces the genus to synonymy under Tomo- 

 cephalus Latreille. 

 [Megacnemius (Esehscholtz) Laporte »e Castelnau] =Toinicephaliis La- 

 treille. 

 1833, Dejean Cat., ed. 3, p. 94. One manuscript name. 



1835, Laporte, His. Nat, Ins., vol. 1, p. 239. One species. 



1836, Esehscholtz, Silb. Rev. Ent., vol. 4. In table; no species included. 

 Type. — Tomicephalns sanguinicoUis Latreille, Ann. Soc. Ent. France, p. 



146, 1834. (Monobasic.) 



Note. — The genus is isogenotypic with Tomicephalus Latreille. 

 Megalorhipis Lacordiabe. 



1857, Gen. Coleopt., vol. 4, p. 160. 



Type. — Megalorhipis validicornis Lacordaibe._ (Monobasic.) 



Note. — Gemminger and Harold (1869) reduces the type to synonymy 

 under Leptophyllus strachani Hope. 

 Megapenthes Kiesenwetteb. 



18G3, Nat. Ins. Deut., vol. 4, p. 353. Two species. 



Type. — Elater lugens Redtenbacher, Dissert, inaug. Vinb., p. 11, 1842. 



( Present designation. ) 



» Fossil. 



