Genus Pisoides Milne Edwards and Lucas 278 



Pisoides edivardsi (Bell) 279 



Genus Rochinia A. Milne Edwards 282 



Rochinia vesiculari s (Rathbun) 284 



Rochinia cornuta (Rathbun) 286 



Rochinia occidentalis (Faxon) 287 



Genus Libidoclaea Milne Edwards and Lucas 289 



Libidoclaea granaria Milne Edwards and Lucas .... 290 



Libidoclaea granaria smithi (Miers), n. comb 292 



Genus Notolopas Stimpson 294 



Notolopas lamellatus Stimpson 295 



Notolopas mexicanus Garth 298 



Genus Herbstia Milne Edwards 300 



Herbstia camptacantha (Stimpson) 301 



Herbstia edivardsi Bell 306 



Herbstia pubescens Stimpson 308 



Herbstia pyriformis (Bell) 310 



Herbstia tumida (Stimpson) 313 



Herbstia parvifrons Randall 316 



Genus A^oJoc/^aBuitendijk 319 



Neodoclea boneti Buitendijk 319 



Genus Libinia Leach 322 



Libinia setosa Lockington 323 



Libinia mexicana Rathbun 326 



Libinia rostrata Bell 328 



Genus Lissa Leach 331 



Lissatuberosa Rathbun 332 



Lissa aurivilliusi Rathbun 335 



Genus Leurocyclus Rathbun 338 



Leurocyclus tuberculosus (Milne Edwards and Lucas) . . . 338 



Subfamily Majinae 340 



Genus Maiopsis Faxon 341 



Maiopsis panamensis Faxon 342 



Genus Paramithrax Milne Edwards 344 



Paramithrax baeckstroemi Balss 344 



Subfamily Mithracinae 346 



Genus Ala Lockington 348 



Ala cornuta (Stimpson), n. comb 349 



Genus Mithrax Desmarest 352 



Subgenus Mithrax Desmarest 355 



Mithrax (Mithrax) tuberculatus Stimpson 355 



Mithrax (Mithrax) armatus Saussure 357 



Mithrax (Mithrax) sinensis Rathbun 360 



Mithrax (Mithrax) sinensis clarionensis Garth, n. comb. . 363 



X 



