802 



A. M Verrill — The Bermuda Islands. 



Bermuda, and probably it will occasionally be found cast ashore in 

 masses of gulf-weed, after storms. It lives on the surface of the sea, 

 quickly moving about by means of its long legs, much like the 

 " skating-bugs " on fresh water. (See White, Voy. Chalk, vii, p. 40, 

 pi. i, fig. 1.) 



Aphids; Plant-lice. 



Several species of aphids were obtained, but some have not yet 

 been determined. One, which was found common on the leaves of 

 the lemon and orange trees, is apparently Nectophora, or Sipho- 

 nostoma, citrifolii, fig. 177. Common on the orange in this country 

 also, and capable of doing much injury. The bod}", both of the, 

 apterous and winged forms, is black or dark brown. 



178 



Figure 177. — Orange Aphis (Nectophora citrifolii), much enlarged; a, winged 

 form ; b, wingless form ; n, n', abdominal tubercles. Figure 178. — Cabbage 

 Aphis {Aphis brassicce) ; a, winged male ; b, oviparous female, both much 

 enlarged; after Weed. 



Cabbage Plant-louse ; Cabbage Aphis. [Aphis brassicce L.) Figure 



17 s. 



According to the notes of Mr. Geo. A. Bishop, this species is often 

 injurious to the cauliflower. Doubtless it occurs also on cabbage. 



The winged males have a small body ; thorax brown or blackish ; 

 abdomen pale greenish brown, with transverse rows of black spots ; 

 legs mostly black. 



The oviparous females are pale green with three rows of indistinct 

 blackish spots on the abdomen, and two rows on the thorax ; legs 

 and antenna? dull brown. 



Coccids ; Scale-insects; Mealy-bugs ; Bark-lice. 



Numerous species of these destructive insects are particularly 

 liable to be introduced attached to the bark and leaves of growing 



