412 PROCEE,D.INGS OF THE NATION'AX. MUSEUM vol. 94 



Type genus. — Einbia Latreille. 



Distribution. — Circum-Mediterranean, African, Indian, South 

 American, and Central American regions. 



KEY TO GENERA OF AMERICAN EMBimAE (MALES) 



1. Process of left hemitergite complex, bifid ; usually bearing both a sclerotic, 



talonlike, inner process and a submembranous, broader, irregular, outer 



lobe PararhagadocMr 



Process of left hemitergite simple, represented by only a slender, usually out- 

 wardly curving process 2 



2. Size small (about 5 mm. long) ; left cercus without a definite, swollen inner 



nodule ; terminal segment of labial palpus, conical, acutely pointed 



Microembia 



Size moderate to large (at least 9 mm. long) ; left cercus with a definite, usually 



subapical, inner nodule ; terminal segment of labial palpus globular, rounded 



apically 3 



3. Basal segment of left cercus with echinulate nodule located at base 



Neorhagadochir 

 Basal segment of left cercus with echinulate nodule located medially or termi- 

 nally on inner side 4 



4. Right hemitergite small, not developed caudally as a process, but as a fleshy 



lobe Calamoclostes 



Right hemitergite well developed, caudal angle pointed, sclerotized 



Embolyntha 

 Genus EMBOLYNTHA Davis 



Emholyntha Davis, 1940b, p. 344. 



Emlius Gray, 1832, p. 786, pi. 72, fig. 2 (name preoccupied). 



Olyniha Gray, 1832, p. 347 (name preoccupied in Lepidoptera, i. e., Olynthus 

 Hubner, 1818). 



Genotype. — Olyntha hrasiliensis Gray, by original designation. 



Distnhution. — South America. 



This genus has been very well treated by Davis, who had the good 

 fortune of being able to examine, redescribe, and figure the holotypes 

 of each of the four species ^ he included in the genus. However, a 

 question arises concerning the possibility that some, or all, of these 

 species are congeneric with Calamoclostes albistriolatus Enderlein. 

 The writer has examined the two specimens from Barro Alto, Brazil 

 (MCZ), which were identified as hatesi by Davis. These are unques- 

 tionably congeneric with a new species from Colombia, which the 

 writer prefers to assign to the genus Calamoclostes because the struc- 

 ture of its terminalia seems to be very similar to albistriolatus. The pe- 

 culiar wing venation (possibly anomalous) of the latter species and 

 its slightly more complex left tergal process are not regarded here as 

 characters of generic importance. However, the writer is not placing 

 the genus Emholyntha as a synonym of Calamoclostes at this time, as 

 he has not studied the genotypes. 



* One of these, salvini, is now removed to the new genus Neorhagadochir. 



