﻿NO. 17 NEW DIPTERA FROM PANAMA MALLOCH 3 



Allied to femoralis, Stn., and trimaculata, Stn., from which it may 

 be separated by the striped thorax, the color of the abdomen and 

 the bristling of the hind tibiae. 



Localities. — Porto Bello, Alhajuelo and Arajan, Panama, Feb.- 

 Apr., 1911 (August Busck). Seven males and three females. 



Type.— Cat. No. 14911, U. S. Nat. Mus. 



FANNIA GRANDIS, new species 



Male. — Very robust; head large, eyes distinctly separated, center 

 stripe velvet-black, eye-margins silvered, frontal bristles strong, 

 face silvered except on the lateral ridge and lower suture dividing 

 it from eye-margins, where it is brown, eye-margins silvered, cheeks 

 and occiput yellow-dusted, antennae yellow, third joint slightly 

 browned at tip, more than twice as long as second, arista yellow, 

 browned on apical half, thickened at base, nearly bare, palpi yellow ; 

 mesonotum yellowish gray-dusted with three broad brown stripes, 

 the central stripe is very broad, more or less distinctly divided by 

 two very narrow pale stripes into three stripes on the anterior half, 

 denticulate at suture, gradually broadening to beyond middle and 

 then abruptly reduced to one-third its previous width, lateral stripes 

 not reaching to scutellum, pleurae yellow-gray dusted, scutellum 

 brown on basal half, apical half yellow-gray dusted ; abdomen trans- 

 lucent yellow, with a distinct black-brown longitudinal dorsal stripe 

 and a spot on each side on posterior margin of same color which is 

 generally coalescent with the central stripe on basal segments and 

 generally detached from it on apical two, apical segment distinctly, 

 the others indistinctly gray-dusted, second segment with a numerous 

 clump of hairs on basal third laterally, the last two segments with 

 strong apical bristles, hypopygium of normal shape, the ventral 

 surface unusually hairy; legs black, trochanters and knee joints 

 yellow, tibiae piceous, paler basally, anterior femora with each of the 

 posterior surfaces armed on the apical half with long bristles, those 

 on the ventral surface (10-11) very long and strong, those on the 

 dorsal surface beginning before the middle and ending at one-fourth 

 from apex, fore tibiae with a preapical dorsal bristle, fore tarsi 

 distinctly thickened, mid femora distinctly constricted near tip, an- 

 tero-dorsal surface rather weakly bristled, antero-ventral surface 

 with seven bristles, which are not very long and rather irregularly 

 placed on basal half, the last two widely separated, then an equally 

 long space followed by one strong isolated bristle and a rapidly 

 decreasing, thickly placed series of over twenty which form a comb- 



