70 



REPOKT ON KCONOMIC ENTOMOLOGY 



AlxluiiU'ii mill legs HDnmil. W'inj^s dciisi'ly scuIimI, witli long, struiglit, nitlu'r broad, liiu'iir 

 Kcali's. luiil short, liroiiil, Hal, niciiiiin ones; the liniiiclu'S of tin- fifth long vein iiciirly as 

 long as till' sttiii ; tiic fringe loii^, thr iiK'diaii sizeil scali-s ajipari-utly all crossiug the largo 

 ones ; costal bonier spiny. 



The "^ palpi are apparently eomposed of three segiiii'iits, the basal one very siiiull ; 

 the seeond smaller than the third, whieh is as long as the rest of the palp, swelling 

 apieally, the apex triineated, ami on tin- inner side are two slight notches (Fig. 38, it). In 

 Stegoiiiyia they are the same size apieally, tapering to an abrnpt acute end (a). This 

 genus comes close to Stegoniyia, but difTers in (1) the marked flat scales on the mesonotum, 

 (2) the wing scales, and {'^) in the peculiar ^ palpi and also in (4) the swollen seeond 

 nnteunal segment. The only species yet found occurs in tiic Sudan. 



Quaxistegomyia unilineut<i, n. sp. 

 Head black witli a iiirdiaii whitr line; palpi Mark willi wliite apex ; proboscis, black. 

 Thorax deep bnnvnisii idack witii a iiudian wiiite line, divided by a very narrow dark line, 

 which extends about half the length of the mcsutlnirax, tliere are two small white spots 

 where it ends and a white patch in front of the roots of the wings, also a few white 

 scales before the white scaled scutelluni. Abdomen black with traces of narrow white basal 

 bauds anil large white basal lateral spots. Legs black, base of femora wliite and with 

 some of the segments with basal white bauds. Wings brown scaled. 



$ Head black, clothed with Hat black scales with a broad median ana of Hat wliite 

 ones about three and four scales wide, and a few snow-white small Hat scales projecting 

 between the eyes, bristles black. 



iid)j;c whicii ends in a lateral prominence on each side ; 

 proboscis wide, decji black ; i)ai[)i black scaled with 

 snow-white apical scales, swollen apieally ; antenuic 

 black, basal segment black with a patch of snow-white 

 scales on the inside. 



Thorax black, clothed with deep bronzy-brown 

 narrow-curved scales, ornamented with a median line 

 of mirrow-eurved almost hair-like white scales, with 

 a verv narrow bare line in the middle showing as a 

 narrow dark line. This extends about half across 

 the mesonotum. Just in hind where it ends are two 

 small white-scaled spots, one on each side ; over and in 

 front of the roots of the wings is a patidi of broader snowy-white scales ; behiiul, bordering 

 the sides and overla})ping tlir \>:\vv space in fnmt of tiic scutelluni, numerous, irregularly 

 placed, broadish narrow-curved scales, and on each side of tluni near the scutelluni a large 

 patch of Hat black scabs; the whole niesonotum is very bristly, the chictie large and black; 

 scutelluni ochreous with Hat white scales ami with a few (3 '!) black border-bristles to the 

 mid lobe ; metanotuni dusky black ; pleune dark brown with flat white scales. Abdomen 

 black with dusky black scales, each segment with a more or less narrow band of white scales 

 which are most pronounced laterally. There are also very prominent large white basal 

 lateral patches, separated from the abdominal bands; posterior border-bjistles small, very 

 pale golden. 



Legs black, bases and venter of femora pale grey to white ; metatarsi and first two tarsi 

 of all the legs basally banded with white ; in the fore legs the banding of the second tarsal. 



Clypeus black with a distinct 



A. 



Kig. 33. I'alpi ami ba-al ?«cj;incnt>of antcnnii; ut 

 Str^0$nyia a^titeUarii, Walker (a and a), and of 

 Qutuiitfgottiyia ttniliMfata, n. ^p., li and b 



