16 



PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 122 



B. arctica Beirne is very closely related to B. impicta (Van Duzee) 

 but can be distinguished from this species by the shape of the aedeagus 

 which is broad with the basal one-thkd almost parallel margined in 

 arctica. 



Balclutha apicula, new species 



FinuRE 7 



Length of male 3.5 mm; head width .875 mm; pronotal Avidth 

 1.000 mm; female unknown. 



Head narrower than pronotum; vertex longer medially than next 

 to eye, interocular mdth three times median length; ocellus located 

 at a distance approximately tmce its diameter from eye; anteclypeus 



Figure 7. — B. apicula: a, aedeagus, lateral view; b, style and connective, dorsal view; 

 c, male pygofer, lateral view. 



wider apically, exceeding gena; postclypeal sutures parallel above 

 antennal pits; pronotum three times as long as vertex; hind femoral 

 chaetotaxy 2-2-1. 



Male pygofer mth less than 15 setae, ventral margin broadly 

 produced; connective slightly longer than style, stem irregular 

 anteapically, not strongly expanded apically and slightly bifid, 

 approximately equal in length to arms which are slender; style with 

 preapical lobe inconspicuous, apical extension cm'ved laterally, 

 rounded apically; aedeagus broad basally, shaft gradually tapered, 

 irregularly curved dorsally, acute apically. 



Color stramineous; fore wings subhyaUne. 



Holotype male from Maj^aguez, Puerto Rico, Aug. 24-29, 1914, 

 deposited in the American Museum of Natural History. 



B. apicula, new species, appears to be related to B. punctata (F.) 

 but can be distinguished by the shape of the aedeagus, style and 

 connective (see key). 



