198 [September, 



sparse pubescence, the black tip is forked, and eacli fork bears long, strong, curled 

 black hairs, on the disc of the lainellaj there is fine pale down. 



Legs black, but orange from the tip of the anterior femora to almost the tip of 

 the basal joint of the anterior tarsi, though the tibiae are somewhat darkened just 

 after the pale base ; hind knees sharply orange and the extreme tip of the hind 

 tibise inconspicuously orange ; trochanters all obscurely orange. There is no orna- 

 mentation to the legs anywhere, but they are comparatively short and thick. 

 Posterior femora with one pre-apical spine. Coxae greyish-black, front pair with 

 rather dense small black bristles up to the long bristles near the tip, middle pair 

 with a few small bristles on the upper edge, ending in one long strong bristle before 

 the tip, hind pair with one long strong bristle near the tip or with one such bristle 

 about the middle and a smaller one after it. Front femora with a rather small but 

 distinct almost apical bristle behind ; front tibia; with four strong bristles above in 

 a row (none of which are near base or tip), then two or three bristles ben-ath near 

 the middle in a row, and one bristle in front near the middle and one near the tip. 

 Middle tibisB with three bristles above towai-ds behind and three others alternating 

 lower down above towards front, also one bristle beneath below the middle, and 

 with four or five spurs. Hind femora with only fine short blackish-brown cilia 

 beneath, in fact hardly enough to call a cilia, though quite as long as, though scarcer 

 than, in Z>. picipes ; hind tibiae with two rows of bristles above consisting of five to 

 seven bristles, one bristle beneath at about three quarters from the base ; hind tarsi 

 with about three bristles above the basal joint in one row and two others outside on 

 the apical half besides the terminal bristles, second joint slightly longer than the 

 basal joint. 



Wings with a smoky-brownish tinge, which becomes fairly conspicuous on the 

 front part above the radial vein ; bend of the discal vein slight ; black costal 

 swelling at the tip of the subcostal vein small but obvious. Squamae yellow, with 

 black fringe. Ilaltercs orange. 



This s])eeies is very closely allied to D.^yicipes Mg. (== D.fastuosus 

 Hal.), but has many minor distinctions beyond those noted in the 

 diagnosis. D. picipes has a shorter hypopygium, and especially shorter 

 and broader lamellse, which have a broader black margin all round ; 

 the third antenual joint is shorter; the legs, besides being blacker, 

 with only the knees and the narrow tip of the tibiae orange, and the 

 front tarsi faintly and the middle tarsi more obviously orange at the 

 base, while the hind legs have only the knees very narrowly orange. 

 D. laiicola has the anterior tarsi shorter and stouter, the basal joint 

 of the middle tarsi w^ith weaker and less conspicuous bristles beneath, 

 while all the other joints of the anterior tarsi are thicker and more 

 clubbed at their tips; spines on the middle tibise fewer and weaker; 

 hind tibiaj less fringed inside ; frons strongly bluish, while in D. 

 picipes it is greenish ; the wings of D. laticola have a smoky-brownish 

 tinge, while D. picipes has them more blackish. 



D. lepidus is at once distinguished by its narrow ochreous face, 



