8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. m 



Centromacronema nigrifrons Banks 



Centromacronema nigrifrons Banks, 1913b, p. 238. — Fischer, 1963, p. 204. 



Although the holotype, male, from Colombia, shows no genitalic 

 differences from C. apicale (Walker), I am not synonymizing it here 

 because of the color differences pointed out in the original description. 



Genus Leptonema Guerin 



Leptonema externum Banks: See Leptonema columbianum Ulmer. 

 Leptonema guatemalum Banks: See Leptonema albovirens (Walker). 



Leptonema albovirens (Walker) 



Macronema albovirens Walker, 1852, p. 76. 



Leptonema albovirens (Walker). — Ulmer, 1905a, p. 31. — Fischer, 1963, p. 166. 

 Leptonema guatemalum Banks, 1913a, p. 89.— Mosely, 1933a, p. 65. — Betten, 1934, 

 p. 202.— Fischer, 1963, p. 169. [New synonymy.] 



A more extensive bibliography of albovirens and columbianum are 

 given by Fischer (1963). 



The holotype male of guatemalum is identical to the type of al- 

 bovirens, as figured by Mosely. 



Leptonema columbianum Ulmer 



Leptonema columbianum Ulmer, 1905a, p. 61. — Fischer, 1963, p. 168. 

 Leptonema externum Banks, 1913a, p. 87. — Mosely, 1933a, p. 13. — Fischer, 1963, 

 p. 168. 



The holotype, female, of externum agrees with columbianum in hav- 

 ing 2 dark spots basally on the forewing, and expanded tibiae and tarsi 

 of the midlegs. 



Leptonema insulanum Banks 



Leptonema insulanum Banks, 1924, p. 455. — Mosely, 1933a, p. 66. — Betten, 1934, 

 p. 202.— Fischer, 1963, p. 169.— Flint, 1964, p. 36. 



This species, known from Puerto Rico only by the male holotype, 

 is the senior sjmonym of L. ulmeri Mosely. I have a long series from 

 Venezuela, which makes me suspect that the Puerto Rican specimen 

 may be mislabelled. 



Leptonema poeyi (Banks), new combination 



Figures 28-31 

 Macronema poeyi Banks, 1938, p. 299. — Fischer, 1963, p. 194. 



Lectotype, male: "Coast below Pico Turquino June 26-30, '36," 

 "Cuba 1936 Darlington Collector," "M.C.Z. Type 22675," "Macro- 

 nema poeyi Bks. Type." 



This species, the lectotype of which is shown here (figs. 28-31), 

 clearly belongs in Leptonema. 



