432 PROCEEDINGS OF THE NATIONAL MUSEUM vol. in 



November. Texas: Laredo (on orchid from Mexico), San Antonio, Sheffield; 

 March, April, June. 



Mexico: Distrito Federal: Pedregal de San Angel, August. Mexico: Tejupilco. 



Discussion. — The Laredo, Tex., specimen listed above was taken 

 from an orchid which had been imported from Guerrero, Mexico. 

 One other specimen was labeled "Taken at light." 



Melanaethus cubensis (Barber and Bruner), new combination 



Geocnethus cubensis Barber and Bruner, 1932, p. 236. 



Diagnosis. — The combination of the small terminal lobe of the 

 peritreme and the lack of punctures on the head and anterior pronotal 

 lobe will permit ready recognition of this species among the other 

 members of the genus. 



Description. — Female: Based on paratype (USNM). Elongate- 

 oval, sides nearly parallel. 



Head: Length about two-thirds width, 0.83 : 1.21 ; interocular width, 

 0.70; anterior outline almost semicircular, clypeus as long as juga, 

 narrowing towards apex; margin of head thick, calloused, dorsal 

 "carina" distinctly submarginal; surface somewhat flattened, little 

 depressed submarginally, mostly obsoletely alutaceous, virtually im- 

 punctate; ocelli large, separated from eye by space greater than trans- 

 verse ocellar width; jugum ventrally polished, impunctate; maxillary 

 plate punctate ventrally and posteriorly. Antennal segments: I, 

 0.26; II, 0.38; III, 0.38; IV, 0.43; V, 0.62. Bucculae not as high as 

 labial II; labium reaching between middle coxae. Labial segments: 

 I, 0.40; II, 0.80; III, 0.56; IV, 0.43. 



Pronotum: Length more than half of width, 1.43:2.69; anterior 

 margin shallowly emarginate; lateral margin weakly sinuate at an- 

 terior thu'd, with submarginal row of four or five setigerous punctures; 

 transverse impression virtually absent, indicated laterally by few 

 small punctures; both lobes obsoletely alutaceous, minutely punctate; 

 anterior lobe without large punctures, with obsolete, subapical im- 

 pression; posterior lobe with not more than five small punctures. 



Scutellum: Longer than wide, 2.02:1.62; surface obsoletely aluta- 

 ceous, minutely punctured, with few coarse punctures scattered over 

 disc. 



Hemclytron: Clavus and corium distinctly alutaceous; clavus with 

 one row of punctures; corium with one complete row of punctures 

 and basal part of second row paralleling claval suture; costa convex, 

 with two setigerous punctures; membranal suture weakly sinuate, 

 lateral angle not prolonged; membrane longer than basal width, 

 surpassing apex of abdomen. 



Propleuron: Both convexities impunctate; prosternal carinae less 

 than half as high as labial 11. 



