WERNER MARCHAND 49 



freshly emerged individual, the adult flies were not taken in these 

 open places and appear therefore to migrate from them after emer- 

 gence and to return to them for the purpose of oviposition. If this 

 is the case, it is another example of the possibilities of error in search- 

 ing for the breeding place of a species in the spot most frequented by 

 the adults. 



The larvae, figured by Neave but not described, were obtained in 

 considerable numbers from September on, a few being still obtain- 

 able even in January and February. In the figure (Plate 5, Fig. 72) 

 the eleventh segment shows a broad dark pigmented band, dorsally 

 reaching somewhat anteriorly to the middle of the segment, ventrally 

 including the anal prominence, while the tube-shaped posterior third 

 of the segment appears to be free from pigment, as also the slender 

 tube-like twelfth segment (syphon) . The circular ridges show only 

 traces of pigmentation. A good illustration of the pupa is given 

 (Plate 11, Fig. 130), which, however, shows no peculiar characteristics 

 by which it could be differentiated from a Tahanus pupa. The pupal 

 asters of male and female pupae are shown and differ considerably 

 (Plate 13, Fig. 171, a, h). 



Chrysops magnifica, var. inornata, Austen. — An African species, 

 according to Neave, not rare in the Mlanje district of southern 

 Nyasaland, during the rains from October to April. 



This species was bred from the larva by Neave, but the larva so 

 closely resembles that of Chrysops longicornis Macq. that Neave 

 never succeeded in separating it satisfactorily, since in both species 

 the usually distinctive characters of the pigmented anal segment and 

 syphon were variable. 



The pupal aster (Plate 13, Fig. 166, a, h) resembles that of Chry- 

 sops longicornis, but the middle pair of hooks is stouter and somewhat 

 more curved, and the shape dift"ers somewhat, especially in the male. 

 The pupal asters of the male and female are illustrated. 



Chrysops mcechus Osten Sacken. — A species recorded from New 

 Jersey, District of Columbia, Illinois, Ohio, and Kentucky. Hine 

 has observed the females ovipositing on foliage overhanging a mill 

 race at Georgesville, Ohio, June 4, 1899, but does not describe the 

 eggs. 



