418 PROCEEDINGS OF THE NATIONAL MUSEUM vol.94 



Paratype. — Male, on slide with tj^pe data, deposited in vrriter's 

 collection. 



Reinarhs. — Two other specimens at hand are in such poor condition 

 that they cannot be designated paratypes. The above series was prob- 

 ably collected at light. 



NEORHAGADOCHIR, new genus 



Males. — Moderate sized (7.5-10.5 mm. long). Head with eyes 

 medium to large sized, inflated; mandibles dentate, three apical teeth 

 on the left and two on the right mandible; submentum very large, 

 sclerotic, similar to that of Pararhagadochir ,' mentum represented by 

 setae only. Wings embioid, without apparent generic characters. 

 Terminalia with tenth tergite completely, broadly cleft to base; left 

 tergal process simple, talonlike; right tergal process poorly defined, 

 similar to that of Pararhagadochir as is also the diagonal median 

 process (10 RP2). Hypandrium process (HP) symmetrical, broad, 

 truncate, simple. Composite left paraproct and left cercus-basipodite 

 well developed. Basal segment of left cercus short, conical; basal 

 foramen very broad, margin sclerotic; gradually, inwardly produced 

 at base as an echinulate nodule ; terminal portion cylindrical, unclavate. 

 Terminal segment of left cercus elongate, longer than basal segment. 



Female. — Unknown. 



Genotype. — N eorhagadochir inflata^ new species. 



Distribution. — Central America. 



Remarks. — This genus is primarily proposed for in-fiata., new species, 

 which apparently cannot be assigned to any existing genus; salvini 

 is tentatively included because of the nature of its left cercus and the 

 conformity of certain other characters with inflata. N eorhagadochir 

 appears to have more characters in common with Pararhagadochir 

 than Emholyntha., i. e., the characters of the head, particularly the 

 mandibles and labium and the median tenth tergal process (10 KP2). 

 It can be separated from Pararhagadochir by the simplicity of the left 

 tergal process and from Emholyntha by the basal position of the 

 echinulate nodule of the left cercus. 



The two included species may be separated as follows : 



KEY TO SPECIES OF NEORHAGADOCHIR (MALES) 



1. Process of left hemitergite greatly elongated — longer than basal segment of 

 left cercus; composite left paraproct and left cercus-basipodite (LPPT4- 

 LCB) terminally echinulate; head with eyes relatively small, one-fourth as 



long as sides of head, which are only slightly convergent salvini 



Process of left hemitergite short — shorter than basal segment of left cercus ; 

 LPPT-fLCB not echinulate; head with eyes very large, as long as sides of 

 head which are strongly convergent inflata 



