A. E. Verrill — Tfie Bermuda Islands. 



745 



Syrphus-fly. (Allograpta obUqua= Syrphus obliquus Say, Ent., i, 

 pi. xi, f. 2.) Fig. 93. 



This handsome golden fly was taken in great numbers in April, 

 while hovering around flowers in the gardens. It is common in 

 the middle and southern United States. It was recorded as common 

 by Jones, 1876. 



In both sexes the fourth segment of abdomen has an oblique stripe 

 of yellow on each side, and two dorsal stripes of the same. Eyes of 

 male have an upper area of enlarged facets. The larva, which feeds 

 on aphids, is pale green, with faint lighter stripes. It is a very 

 beneficial species. See Fig. 9 3 b. 



A species of Forest-fly or Gad-fly ( Tabanus) of rather large size 

 and with a large green head, is also common. Uhler, 1888, recorded 

 a different, smaller species, allied to T. lineola Fabr. and T. cincta 

 Fabr. 



Robber-fly. (Asilus?) A Robber-fly belonging to Asilus or 

 some allied genus is described in Miss Haywai'd's notes. 



Mosquitoes (Culex, etc., sev. sp., figs. 94-100) are very abundant, 

 especially in the lowlands and near marshes in summer, but we found 

 them by no means common in March and April. All those collected 

 were species of Culex. Whether the Malarial Mosquito (Anopheles) 

 occurs here is uncertain, but it has not been recorded nor is malaria 

 endemic. According to Hurdis, one common species of Cidex has 



95 



Figure 94.— Mosquito (Culex, sp.) ; A, larva ; B, pupa ; a, caudal appendage; d, 

 thoracic spiracles ; much enlarged ; after Packard. Figure 95. — a, Larva 

 of Yellow-fever Mosquito (Stegomyia fascia ta) ; b, larva of Culex fatigans : 

 both much enlarged ; after Theobald. 



the legs conspicuously banded with gray and blackish. Another, 

 abundant in the marshes, is a rather large species, of a nearly uni- 

 form brownish color. 



