85 



DIPSAS 



27.A11 dorsal blotches fail to meet on venter; 



usually less than two pairs of labials in con- 

 tact behind mental 28 



First few dorsal blotches fused ventrally; 

 usually two pairs of labials in contact behind 

 mental lat if asc iata 



28. Anterior body blotches twice as wide as 



lighter interblotch area lat i frontal is 



Anterior body blotches approximately the same 

 width as light interblotch areas peruana 



27.Ninguna mancha dorsal se fusiona ventralmente; 

 f recuentemente menos de dos pares de labiales 



en contacto detras de la mentoneana 28 



Pocas de las primeras manchas dorsales fusio- 

 nadas ventralmente; f recuentemente dos pares 

 de labiales en contacto detras de la men- 

 toneana -- lat if asc iata 



28. Manchas anteriores doblemente anchas que inter — 



espacios claros lat i frontal is 



Manchas anteriores de aprox imadamente igual 

 ancho al de los interespac ios claros peruana 



DIPSAS ALBIFRONS (Sauvage) 

 varieqata group 



1884 Dipsadomorus albif rons Sauvage, Bull. Soc. Philom. Paris, (/) 8: 145. Type-locality: Brazil. 



I5O8 Pi psas albif rons- — Mocquard in Dumeril & Bocourt, Miss. Sc i . Mex. J: S')] , 



1950 Dipsas albif rons cavalheiroi Hoge, Mem. Inst. Butantan, 22: 154. Type-locality; llha da 



Queimada Grande, Sao Paulo, Brazil. 

 1960 Dipsas albifrons — Peters, Misc. Publ. Mus. Eool. Univ. Mich., 114: 121. 



Distribution: Known from Estados de Santa Catarina and SSo Paulo, Brazil; also reported from 

 Paraguay and Mate Grosso, Brazil. 



DIPSAS ARTICULATA (Cope) 

 art iculata group 



1868 Leptoqnathus art iculata Cope, Proc. Acad. Nat. Sc i . Phila., 1868: 135' Type-locality: Veraguas, 



"Costa Rica" (actually in Panama). 

 1526 Jbipsas articulata ] — Parker, Ann. Mag. Nat. Hist., (5) 18: 206. 

 1%0 mpsas articulata — Peters. Misc. Publ. Mus. Zool. ,Univ. Mich., 114: 33. 



Distribution: Lower elevations on Atlantic and Pacific slopes, Costa Rica and Panama. 



DIPSAS BICOLOR (Gunther) 

 art iculata group 



1895 Neopareas bicolor Gunther. Biol. Centr. Amer., Rept.: 1/8. Type-locality: Chontales mine, 



N icaragua. 

 1926 [" Dipsas b icolor l— Parker, Ann. Mag. Nat. Hist., {5) 18: 206. 

 1554 Wopareas tricolor Brattstrom and Howell, Herpetologica, 10: 120. Type-locality: Jalapa, Nueva 



Segovia, Nicaragua. 

 I960 Dipsas bicolor — Peters, Misc. Publ. Mus. Zool. UMv. Mich., 114: 36. 



Distribution: Pacific slopes of southern Nicaragua and northern Costa Rica. 



DIPSAS BOETTGERI (Werner) 

 pratt i group 



1501 Leptoqnathus boettqeri Werner, Abh. Ber. Konigl. Zool. Anthropol. -Ethnol. Mus. Dresden, 5' H* 



Type-locality: Chanchamayo, Peru. 

 1909 Leptoqnathus boliviana Werner. Mitt. Naturhist. Mus. Hamburg, 26: 240. Type-locality: Beni 



River, Bolivia. 

 1960 Dipsas boettqeri — Peters, Misc. Publ. Mus. Zool. Univ. Mich., 114: 98. 



Distribution: Andean slopes of southern Peru and northern Bolivia. 



