LIST OF DIPTERA. 799 



Gonia Chilonis, n. s., fern. Nigra, eapite fulvo, scutello ferrugineo , 

 abdominis lateribus cano maculatis, antennis ferrugineis.articulo 

 3° pedibusque nigris, alis subcinereis basifulvis ad costamfuscis. 

 Body black, clothed with black hairs and bristles : head tawny, 

 clothed beneath with pale yellow hairs ; sides of the face fringed 

 with bristles for three-fourths of the length : eyes dark red : sucker 

 black, clothed at the tip with tawny hairs : palpi tawny, beset with 

 black bristles : feelers black, as long as the face ; first and second 

 joints ferruginous ; third linear, about four times the length of the 

 second, slightly rounded at the tip ; bristle a little shorter than the 

 third joint: scutcheon ferruginous: abdomen obconical, as long as 

 the chest, adorned with a hoary spot on each side of the fore border 

 of every segment ; legs black, clothed with black hairs and bris- 

 tles ; foot-cushions tawny : wings slightly gray, tawny at the base, 

 brown along the fore borders; wing-ribs and veins tawny; veins 

 black towards the tips ; tip cross-vein forming a very obtuse angle with 

 the fourth longitudinal vein, hardly curved inward near the base, 

 almost straight from thence to the tip, joining the border at some 

 distance above the tip of the wing ; lower cross-vein with two very 

 slight curves, the lower inward, the other outward ; scales pale 

 tawny. Length of the body 4 — 5 lines ; of the wings 7 — 9 lines. 



Gonia Milias, n. s., fem. Nigra, cano tecta, eapite fulvo, thorace 

 quadrivittato, scutello fulvo, abdomine cano micante, lateribus 

 basi fulvis, antennis ferrugineis, articulo 3° pedibusque nigris, 

 alis albidis basi subfulvis. 



Body black, with a hoary covering, clothed with black hairs and 

 bristles : head pale tawny, with a white bloom, clothed beneath with 

 white hairs ; epistoma slightly prominent ; sides of the face fringed 

 with bristles for half the length from the base ; eyes red : sucker 

 black, clothed with tawny hairs ; palpi tawny, beset with black bris- 

 tles : feelers black, a little shorter than the face ; first and second 

 joints ferruginous ; third ferruginous at the base, and for half the 

 length beneath, linear, slender, truncated at the tip, more than four 

 times the length of the second joint; bristle a little shorter than the 

 third joint: chest adorned with four slender interrupted black stripes ; 

 scutcheon tawny, as is also the neighbouring part of the chest : 

 abdomen obconical, not longer than the chest, adorned with hoary 

 reflections, and on each side of the base, with a very large tawny- 

 spot : legs black, clothed with black hairs and bristles ; knees fer- 

 ruginous ; foot-cushions tawny : wings whitish, pale tawny at the 

 base: wing-ribs tawny; veins pitchy ; tawnv at the base ; tip cross- 



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