28 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 122 



Male pygofer -with posterior margin not rounded, usually with more 

 than 15 setae; plates short, blunt apically; connective expanded apically 

 and truncate, two-thirds as long as style, stem and arms approximately 

 equal in length; style with preapical lobe inconspicuous, apical 

 extension stout, rounded apically and only slightly curved: aedeagus 

 with dorsal apodeme conspicuous with a pair of long slender processes 

 extending posteriorly, shaft slender, deeply incised apically, curved 

 dorsally. 



Color stramineous to green; face without oblique brown lines; 

 vertex, pronotum, and scutellmn with longitudinal yellow lines; 

 thoracic venter not dark; forcAvings subhyaline with several small 

 browTi spots present in irregular patterns, 



Holotype male. Nova Teutonia, Santa Catarina, Brazil, April 1953 

 (F. Plaumann), on indefinite loan to the U.S. National Musemn from 

 North Carolina State University. This species was described from 

 four male specimens from Brazil (Apr., Oct., and Jan.). 



B. youngi, new species, appears to be related to B. hebe (Kirkaldy) . 

 It can be readily distinguished from the latter by the shape of its 

 aedeagus, the shape of the male plates, and the shape of the styles 

 (see key). This species is named in honor of Dr. David A.Young of 

 North Carolina State University. 



Balclutha fuscina, new species 



Figure 17 



Length of male 4.0 mm; head width .825 mm; pronotal width .850 

 mm; female unknowTi. 



Head slightly narrower than pronotum; vertex as wide next to eye 

 as medially, interocular width more than three times median length; 

 ocellus located at a distance of slightly more than its diameter from 

 eye; anteclypeus widest apically, exceeding gena; postclypeal sutures 

 slightly curved mesally above antennal pits; pronotum approximately 

 three times as long as vertex; hind femoral chaetotaxy 2-1-1. 



Male pygofer with less than 15 setae, postero ventral margin with 

 a short heavily sclerotized process extending posteriorly as far as 

 pygofer apex; connective wide, expanded apically and bifid, approxi- 

 mately equal in length to style, stem slightly longer than arms; style 

 with preapical lobe rounded, apical extension slightly curved and acute 

 apically; aedeagus with shaft long and slender, a pair of short 

 processes arising from base and extending posteriorly. 



Color green to stramineous; face without oblique broAvn lines; 

 thoracic venter not dark; forewings subhyaline with green tint. 



Holotype male. Nova Teutonia, Santa Catarina, BrazO, May 1953 

 (F. Plaumann), on indefinite loan to the U.S. National Museum from 



