24 U.S. NATIONAL MUSEUM BULLETIN 266 



TYPE LOCALITY: Costa Rica. 



OTHER LOCALITY: Parismina, Costa Rica (Chamberlin 1933). 

 Pseudamplinus crenus (Chamberlin). 



Amplinus crenus Chamberlin 1943b, p. 56; Hoffman 1954a, p. 51. 

 TYPE: Collection of R. V. Chamberlin. 



TYPE LOCALITY: Near Fortm, Veracruz, Mexico. Probably Fortm 

 de las Flores. 



PARATYPE LOCALITY: Same, and Puroje, Veracruz, Mexico. 

 Pseudamplinus erichsoni (Brandt). 



Polydesmus erichsoni Brandt 1841, p. 135. 

 Polydesmus (Paradesmus) erichsoni Saussure 1860, p. 293. 

 Polydesmus (Euryurus) erichsoni Peters 1864, p. 542. 

 Amplinus erichsoni Pocock 1909, p. 152. 



Orthomorpha erichsoni Cook 1911c, p. 627; Hoffman 1954a, p. 51. 

 TYPE: Zool. Mus. Berlin (H) 

 TYPE LOCALITY: Mexico. 

 Pseudamplinus eutypus (Chamberlin). 



Amplinus eutypus Chamberlin 1952a, p. 573; Hoffman 1954a, p. 51. 

 TYPE: Chicago Nat. Hist. Mus. 



TYPE AND PARATYPE LOCALITY: El Fortm, Veracruz, Mexico. 

 Probably Fortin de las Flores. 



Chamberlin founded this species on three females with no mention be- 

 ing made of any male characters. However, he refers to Figure 35, which 

 is of a male gonopod! Figure 36 is said to be of a new species which he 

 does not describe. It is possible that both figures are of this undescribed 

 species. 

 Pseudamplinus flavicornis (Pocock). 



Amplinus flavicornis Pocock 1909, p. 151. 



Orthomorpha flavicornis Cook 1911c, p. 627; Hoffman 1954a, p. 51. 



TYPE: British Mus. 



TYPE AND PARATYPE LOCALITY: Central America. 



OTHER LOCALITY: Palenque, Chiapas, Mexico (Hoffman 1951). 



Pseudamplinus intermittens (Causey). 



Amplinus intermittens Causey 1954, p. 64; Hoffman 1954a, p. 51. 



TYPE: Illinois St. Nat. Hist. Surv., Urbana. 



TYPE LOCALITY: Fifteen mi. south of Pichucalco, Chiapas, Mexico. 

 Pseudamplinus klugi (Brandt). 



Polydesmus klugi Brandt 1841, p. 133. 



Polydesmus (Paradesmus) klugi Saussure 1860, p. 293. 



Polydesmus (Euryurus) klugi Peters 1864, p. 541. 



Polydesmus (Pachyurus) klugi Saussure and Humbert 1872, p. 27. 



Pachyurus klugi Karsch 1881, p. 37. 



Polydesmus (Paradesmus) picteti Saussure 1859, p. 325. 



Amplinus klugi Pocock 1909, p. 152; Hoffman 1954a, p. 51. 



