THE CANADIAN ENTOMOLOGIST. 49 



, be accessible to many of our readers, we append the following free 

 translation of it : — 



" The caterpillar is of a very mixed color ; its under surface is brown as 

 well as the feet. On the four first segments there is a white lateral and 

 longitudinal band, beginning from the head. Between that band and that . 

 of the opposite side there is a large brown patch marked by large brown- 

 ish-black spots, and behind this on the middle segments there is a large 

 white patch in the shape of a lozenge, which covers the back and a part 

 of the sides, one of the angles of which reaches the first pair of mem- 

 braneous feet. On the middle of that band there are some brown spots. 

 The posterior part of the body is covered by another large white patch 

 marked anteriorly with some brown spots ; the lateral part comprised 

 between the lozenge-shaped and the last white patch, is of a uniform dark 

 brown color. It feeds on all the trees of the genus Citrus, and is in some 

 parts of America a sort of plague to the cultivators of the orange." 



For a few days, while fresh food of Dictamnus was at hand, the larvae 

 did well and grew rapidly, but the supply failing, they were transferred to 

 a young orange tree, which was enclosed in a gauze bag to prevent their 

 escape, when they lost their vigor and activity, and although they ate more 

 or less of the foliage every day, they lost flesh and one after another died,' 

 until only three or four remained. These lingered for a long time and 

 two of them spun up and went into chrysalis, but the chrysalids were small 

 and one of them deformed, and finally the remainder all died. Subse- 

 quently the chrysalids became stiff and hard, and on opening them they 

 were found dead and dry. 



Cresphontes has been taken on the wing at Chatham, 60 miles west of 

 London ; also at the western extremity of the Province, at Amherstburgh. 

 A dead specimen has also been found washed up on the shore of Lake 

 Ontario, near Grimsby, but this is the first instance, as far as we know, of 

 the larva having been found in Ontario. 



Dictamnus belongs to Rutacece or the Rue family, under which there 

 are also grouped in Gray's School and Field Botany the following genera 

 and species : Ruta, Rue, sp. Ruta gravcolcns, common rue, exotic, but 

 much cultivated in gardens ; Zanthoxylum, prickly ash, sp. Z. americanum, 

 northern prickly ash, and Z. caroliniauum, southern prickly ash, both 

 indigenous ; Ptelca, hop-tree, sp. Ptelea trifoliata, indigenous ; Skimmia, 

 sp. 6". japonica, exotic from Japan, and Citrus, which includes both the 



