656 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



original description, but the title of Stal's paper suggested that all 

 included forms had come from Kio de Janeiro. 

 Specimens studied: 138 males. 



United States: Texas: Brownsville; June. 



Mexico: Chiapas: Tapachula. Sinaloa: Presidio River; September. Vera- 

 cruz: Tres Zapotes, Pureza; April, June. 

 Honduras: Lacertilla, Lombardia, Tela. 

 Costa Rica: Hamburg Farm; March, April. 



Panama: Canal Zone: Anc6n, Barro Colorado Island; January, April, July. 

 Colombia: No exact locality. 

 Brazil: No exact locality, type. 

 Ecuador: Cachabi. 

 Bahamas: South Bimini Island; June. 

 Cuba: Baragua, Guantdnamo, Santo Tomds; May, June. 

 Haiti: "Diquini," Port au Prince; July, August, November. 

 Dominican Republic: San Francisco Mts.; January, September. 

 Puerto Rico: Isabella, Ponce, San Juan; March, August. 

 Virgin Islands: St. Croix; May, November. 

 Grenada: Balthazar. 



Discussion. — Although a number of authors reported this species 

 for the southeastern United States, the large series of Amnestus from 

 that region did not yield any specimens. Instead, most of those 

 records appear to belong to the common southeastern species basi- 

 dentatus, which is described as new in the present paper. Another 

 point of interest in relation to the distribution of this species lies in 

 the fact that all specimens, except the t^^pe, were found to have come 

 from an area far to the north of the type locality in southern Brazil. 



The present state of knowledge does not permit certain recognition 

 of the females of this species. The only female specimens reported 

 upon for the distribution data in this paper were those from within the 

 range indicated by males. 



Amnestus radialis, new species 



Plate figures 61, 76, 297 



Diagnosis. — Among those species with five pegs on jugal margins, 

 this species may be recognized by the fuscous line along the radial vein 

 and the four long pegs on the apex of the clypeus. 



Description. — Based on one male. Elongate, sides subparailel. 



Head: Length about three-fourths width, 0.46:0.61; interocular 

 width, 0.33; clypeus slightly surpassing apices of juga, latter with five 

 marginal pegs becoming finer toward eye; surface punctate between 

 eyes. Antennal segments: I, 0.12; II-V, missing. Labium attaining 

 middle coxae. Labial segments: I, 0.16; II, 0.23; III, 0.23; IV, 0.23. 



Pronotum: Length more than two-thirds width, 0.96:1.38; anterior 

 margin shaUowly concave; lateral margins strongly narrowing from 

 base, slightly concave on basal half; transverse impression moderate, 



