10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 81 



KROBERIA FLORIDENSIS, new species 



Dark brown, legs yellowish brown, basal and apical third of tibiae 

 and tarsi from tip of first joint blackish. Differs from fuliginosa 

 in having the scutellum opaque brown with pale pollinose border ; the 

 hind femora only moderately thickened, with only a few bristles 

 above ; and the hind tibiae only slightly flattened. 



Male. — Front black in ground color, with thin pale pollen, ocellar 

 triangle more densely pollinose ; a silvery pollinose spot between eye 

 and third antennal joint; face dark yellow, the protuberance some- 

 times blackened, the epistoma below it transversely wrinkled ; cheek 

 brown, wrinkled, nearly as high as the eye, with pale hair. Mesono- 

 tum black, with five distinct pale pollinose stripes ending at 

 scutellum; mesopleurae with pale pollen, covered with small dark 

 dots where the hairs arise, but these do not extend upon the portion 

 below the spiracle. Chaetotaxy: Acrostichal, 1 (prescutellar) ; 

 dorsocentral, 1 or 2 (far back); humeral, 1; notopleural, 2; pre- 

 sutural, 1; supraalar, 1; postalar, 2; intraalar, 1 (before the inner 

 postalar) ; scutellar, 2 pairs (a third in one male and an odd one in 

 a female) ; mesopleural, 2 or 3 ; sternopleural, 1. Most of these 

 bristles are quite small. Abdomen blackish, dorsum opaque, second 

 and following segments with interrupted band of pale pollen on 

 posterior half or more, widening toward sides to include whole length 

 of segment, most distinct from behind. Legs as described; hind 

 femur with anterodorsal row of bristles from base nearly to tip, and 

 two short rows near tip, none of striking size. Wings rather 

 uniformly pale brownish. Knob of halteres very pale yellow. 



Length, 6-6.6 mm. 



Female. — Abdomen with pale pollinose stripe on each side, central 

 region opaque dark brown; sixth and seventh segments shining 

 black, the latter becoming dark yellow toward tip. 



Length, 7 to 8 mm. 



Type.—KslQ, U.S.N.M. No. 43761. 



ReTYiarks. — Described from two males and four females, reared 

 from rotten wood of Sabal palmetto in Putnam County, Fla., by 

 Mark Dodd, February 21, 1931; and one female reared by D. J. 

 Nicholson from a larva found in deca3'^ed wood of Sahal minor^ 6 

 inches under water, l^/^ miles east of Fort Christmas, Fla., emerged 

 March 25, 1931. 



The discovery of this species in northern Florida, only about 70 

 miles from the Georgia line, extends the known range of the family 

 in a remarkable way. Lindner recognizes about 13 species in 6 

 genera. All these are distinctly tropical, and nearly all range 

 southward from the northern limits of South America to Paraguay 



