562 The entomologist. 



dark green, very often of a light brown, and sometimes of a 

 dark brown. Among the green individuals we have observed 

 three varieties. The first is of a bright green, with two rows 

 of black spots along the back, and seven oblique while 

 lateral stripes, and the horn is fawn-coloured on the upper 

 side and black beneath. The second variety is of a dark 

 green, with two black lines along the back, and seven oblique 

 stripes of the same colour on the sides. The third variety is 

 green, with six longitudinal rows of black or brown spots, and 

 the head and horn ferruginous. The brown individuals are 

 equally variable. The first variety, which is rather common, 

 is of an olive-brown, with two black lines along the back, and 

 seven oblique stripes of the same colour on the sides ; the 

 head and the 1st segment of the body are of a ferruginous- 

 red ; we may also remark that there is upon the sides of each 

 segment a large white spot. In the second variety the three 

 anterior segments have whitish longitudinal lines. The third 

 variety is entirely brown, with the back darker than the sides. 

 Besides these six varieties intermediate ones are not rare, and 

 sometimes almost the whole of the body of this larva is inter- 

 sected transversely by a multitude of very fine black lines. 

 This caterpillar lives upon various species of Convolvulus, but 

 particularly upon the Arvensis ; it is rarely found upon the 

 Sepium ; it is sometimes found upon plants of Convolvulus 

 tricolor and Ipomea coccinea, which are cultivated in 

 gardens. To obtain this caterpillar it should be looked for in 

 July in fields where Convolvulus arvensis grows among 

 plantations of potatoes or beans, where it is rather common, 

 and from its large size is easily discovered. The perfect 

 insect is disclosed in September, but a part of the pupae 

 remain through the winter, and the moths appear in May and 

 June of the following year." My friend M. Constant says 

 that Sphinx Convolvuli is commoner at Autun than S. 

 Ligustri, and adds that the presence of the larvce in potato- 

 fields is easily detected by the excrements lying round the 

 plants of Convolvulus arvensis; and upon lifting them up the 

 larva3 will be found beneath them. Some years ago one was 

 brought to me with some larvae of Atropos, and another 

 which was found upon a garden-hedge which was overgrown 

 with Convolvulus sepium,upon which the larva had doubtless 

 been feeding. — Henry Do able day ; Epping, Nov. 14, 1873. 



