A. E. Verrill — The Bermuda Islands. 



841 



parasitic on Orthezia insignis has been mentioned above (p. 806). 

 Mr. Banks says it is a Tyroglyphus, but the specimens were 

 too imperfect for specific determination. 



Orange Rust-mite. (Phytoptus oleiv ones Ashm.) Fig. 225. This 

 has been recorded as occurring on oranges in Bermuda, (see Riley 

 and Howard, Insect Life, iii, p. 120, Nov., 1890.) It is a very 

 minute species which causes the rusty patches on oranges. 



224 



224« 



224ft 



226 



Figure 224.— Cattle Tick (Ixodes bo vis E.) ; after Eiley. Figure 224a.— Mange- 

 mite of cattle; after Murray. Figure 2246. — Bird-mite (Dermanyssus avium); 

 after Murray. Figure 225.— Orange-rust Mite (Phytojrtus oleivorus). Figure 

 226. — Cheese Mite (Tyroglyphus siro), after Howard. All much enlarged. 



Cheese Mite. {Tyroglyphus siro (L.) Figure 226. This occurs 

 in old cheese, as in Europe and the United States. 



Tropic-bird Mite (Alloptes phaethontis Gmel. (t. N. Banks.) 



Several specimens of a small, dark brown mite, from .50 to .75 mm 

 long, were found on the Tropic-bird by A. H. Verrill. The body is 

 rather narrow, oblong, subacute at each end. Legs about half as 

 long as body. Four caudal bristles, about as long as body. 



Megninia aiquinoctialis Trouess. (t. N. Banks.) 



Associated with the above was a single specimen of this larger 

 species, having the posterior legs much longer than the others; 

 body ovate; abdomen tapered, subacute. 



Leaf-mites; Red Spiders. (Tetranychiis.) Two or move species 

 of this genus were observed on garden plants, but were not carefully 

 studied. The common form was, apparently, T. bimaculatus (fig. 

 227), common in the United States. This species usually has a red 



