NO. 3581 BALCLUTHA — BLOCKER 31 



species, and numerous specimens have been examined from Flordia, 

 Mexico, Puerto Rico, Cuba, Trinidad Island, Dominican Republic, 

 Haiti, Jamaica, British Honduras, Panama, El Salvador, Surmam, 

 Colombia, Peru, and British Guiana. 



B. caldwelli, new species, appears to be related to B. neglecta (DeLong 

 and Davidson) but can be distinguished from this species by the shape 

 of the aedeagus (see key) and by the head which is narrower than the 

 pronotum. Caldwell (1952) and Linnavuori (1959) applied the specific 

 name of virescens (Osboi-n) to this taxon. In typical virescens the head 

 is wider than the pronotum, and the female abdomhial sternum VII 

 does not resemble that of caldwelli. This species is named in honor of 

 Dr. John S. Caldwell, formerly of Ohio State University. 



Balcliitha rufofasciata (Merino) 



Figure 19 

 Nesosteles rufofasciatus Merino, 1936, Philii^pinc Journ. Sci., vol. 61, p. 381. 



Length of male 3.3 to 3.9 mm, of female 3.7 to 4.2 mm; head width 

 of male .800 to .875 mm, of female .875 to .925 mm; pronotal width of 

 male .825 to .925 mm, of female .875 to 1.000 mm. 



Plead usually as wide as pronotum; vertex as long next to eye as 

 medially, interocular width three times median length; ocellus located 

 at a distance of from less than to equal to its diameter from eye; 

 anteclypeus parallel margined, exceeding gena; postclypeal sutures 

 curved mesally above antenna! pits; pronotum three times as long as 

 vertex; hind femoral chaetotaxy 2-1-1; female with posterior margin 

 of abdominal sternum VII notched medially. 



Male pygofer with less than 15 setae, wdth a bifm-cate heavily 

 sclerotized process on inner surface extending posteriorly; plates 

 broadly triangular, with many setae, apical one-fourth constricted, 

 curved ventrally; connective expanded apicaUy and deeply bifid, ap- 

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

 style with preapical lobe acute, apical extension long, strongly curved 

 laterally, acute apically; aedeagus with preatrium conspicuous, dorsal 

 apodeme extending anterodorsally, shaft gradually narrowed, slender 

 in apical one-half, curved dorsally then anteriorly. 



Color stramineous; face without oblique brown lines; thoracic 

 venter not dark; fore wings subhyaline with third apical cell dark 

 brown, other cells commonly partially or wholly brown or red in color. 



Type not located; the above redescription is from a series of speci- 

 mens from St. Thomas, Virgin Islands (Nov.) located at the U.S. 

 National Museum. It is also reported from Puerto Rico, Africa, the 

 Philippines, and Oceania. 



