354 DURHAM DIPTERA. 



XLIX. 604. 



604. Philhygria, Stnh. 



1 (9). Wings with not more than one spot, besides the spots 



on the two X-veins. 



2 (3) (6). Wings quite clear and unspotted ; dorsum brown 



with whitish stripes, and the scutellum dull black ; 

 arista combed. (2615. picta, Fin.) 



3 (2) (6). Wings grey with the two X-veins clouded, but no 



other dark spot. 



4 (5). Arista almost bare ; legs mostly black ; tarsi yellow. 



(2618. interrupta, Hal.) 



5 (4). Arista combed ; legs all yellow ; C 2 three times as 



long as C 3 . (2620. posticata, Mg.) 



6 (2) (3). Wings with one brown spot, in addition to the 



clouded X-veins. 



7 (8). Wings grey clouded, the brown spot between V.3. 



and V.4. near the tip. (2617. stictica, Mg.) 



8 (7). Wings clear with a yellowish tint ; a small brown spot 



at the end of V.I. (2619. flavipes, Fin.) 



9 (1). Wings with numerous brown spots. 



10(11). C 2 about equal to C 3 ; X-veins and end of V.I. 



clouded ; two spots in O.3., two in 0.4 2 , one in 



0.5 2 , not touching the veins. 



(2521. interstincta, Fin.) 

 11 (10). C 2 almost twice as long as C 3 ; X-veins and the end 



of V.I . clouded ; rows of spots along and touching 



V.2., V.3., and V.4. 



(2616. punctato-nervosa, Fin.) 



605. Hyadina, Hal. 



1 (6). Pleurae with a velvet-black spot near the shoulders. 



2 (5). Pleural spot very large ; wings with two clear spots at 



the X-veins. 



3 (4). Scutellum entirely velvet-black. 



(2622. scutellata, Hal.) 



4 (3). Scutellum shining in the middle with a velvet-black 



spot on each side. (2623. guttata, Fin.) 



