90 INVERTEBRATE ANIMALS. 



Upper Compartment. 



The Ailanthus Silk-moth, Attacus Cynthia, Cocoons, 



Silk, &c. ; also Cocoons and Silk of the Tusseh 



and various other Silk-worms, presented by F. 



Moore. 



Group 207. — Genus AECTIA and allies. Observe examples 



of the exotic genus Histia from Northern India and Java, 



the species of which in outline and colouring closely 



resemble butterflies. For an account of mimicry in 



Insects see the Tablet. The group is illustrated by 18 



British species. 



Group 208.— PSEUDO-BOMBYCES. The Swifts, Lappets, 



and Prominents, include some of the most rare and 



beautiful British moths. Of these about 40 species 



are exhibited. 



Upper Compartment. 



Specimens of a Fungus, Torruhia Robertsii, on the 

 larvae of Hepialus from New Zealand ; also of 

 Torruhia militaris on pupse of moths, collected 

 at Kainhill and presented by H. H. H. Pre- 

 pared larva3 of moths. 



Group 209.— Family URANIID^ and allies. Species of 

 Urania are frequently seen near the rivers of Brazil 

 flying in a certain direction, and following one another 

 in rapid succession for several days together ; yet not 

 one is seen to return. These insects resemble butter- 

 flies, but are distinguished by the antennae which are 

 not clubbed, and by the chrysalis which is not angular. 

 Observe especially the very rare and beautiful Urania 

 Riphcsus, a native of Madagascar, and the scarcely less 

 beautiful Nyctalemon. 



In this group also are included the Burnets, Clear- 

 wings, &c., ZygcenidcR and other Families : amongst 



