3X3 



Eggs. — hength srarct'ly ii imu. Hegularly oval cylindrical, bein^ rather louj^. Tho 

 surtiu-e coarsely pitted, aud under a half-incli objective seem to be marked with 

 deep, well marked, dose-set pits which are rounded at the bottom with distinct tive- 

 sidcd edges or rims. They are laid either scattered or in rows of three or four, not 

 })laced exactly end to end, but with one end directe<l a little to one side of the line. 



Firshlif hatched larva. — Length, 3-4 nun. Hody of the usual Geometrid shape, not 

 being swollen on the thoracic segments. The head is of moderate size, slightly 

 wider than the body, and of the same reddish-brown color as the body ; it isspotted 

 with white in front, with two white spots abovi; transversely arrange<l, and two 

 large ones on the clypens longitudinally arranged. The l)ody is long and slender, 

 dark reddish brown, marked with bright white irregular ])atches. I'rothoracic seg- 

 Uient with a large white oval spot next to the head, and a white dot on each side, 

 the two succeeding segments reddish-brown with no marks. The lirst six abdominal 

 segments each with a large white triangular showy spot on each side and meeting 

 above. Each s])()t is composed of several large ilat warts. The side of the suranal 

 plate is lined with white, and the sides of the anal legs bear several flattened white 

 wirts. All the legs are dark. The abdominal segments each bear a few scattered 

 short glandular hairs which are swollen at the end and divided into three lobes. 

 The larva) were not carried on to the second stage. One freshly hatched larva was 

 observed September 6 which only measured 2 mm. in lengh. 



Stage III ? — Length 10 mm. The larva now resembles in shape aud markings the 

 full grown insect. The Lead is dark brown, with four longitudinal whitish stripes. 

 The body is dark brown with indefinite, fine, longitudinal, blackish hues. Behind 

 the thoracic segments the two basal abdominal segments are swollen forming a bar- 

 rel-shaped enlargement with no white markings on this portion. Behind, in tho 

 middle of the body, are four sets of whitish yellow or tawn3' marks arranged at nearly 

 e»iual distances apart, two slashes on each side, with a third oblique line passing 

 over the back aud nearly meeting the one from the other side; the ends on the back 

 being sienna-brown; and between their jioints the faint yellowish white or tawny 

 linear dorsal line is more distinct than elsewhere, the line not reaching the swollen 

 anterior part or the posterior end of the body. Described September 2. 



Full-grown larva. — Length, 20 mm. The head is a little flattened in front, slightly 

 wider than the prothoracic segment. The body is much swollen on the first and 

 second abdominal segments, so as to be twice as thick as in the middle or as the rest 

 of the body. The thoracic segments increase in size towards the swollen portion 

 behind, but the third abdominal segment is of the same thickness as those behind it. 

 The body is of a rich velvety brown-black, with a broken light dorsal line, which is 

 most distiiut over the sutures. On each side of abdominal segments .3 to 6 are three 

 oblique white slashes, forming very conspicuous marks; two of the slashe nearly 

 meet above, near the sutures. The head is dark, with two lateral white stri]>es con- 

 tinued back upon the first and second thoracic segments. The body elsewhere is 

 faintly striped. The swollen portion behind the thoracic legs, and the dark-brown 

 body with the four sets of three conspicuous white slashes, render it a very curious 

 and conspicuous object. It may resemble a twisted dead or blackened portion of a 

 leaf, or leaf-stalk, and it may have acquired the swollen appearance as a terrifying 

 or deterrent feature. The young larva when 10 mm. long holds itself up much looped, 

 supported by its anal legs, and sways itself to and fro sideways, and if one touches 

 another it will strike at the other, simulating the actions of snakes when striking 

 at an assailant. 



Pupa. — Length, 12-1.3 mm. The head in front projecting forward, with two low 

 conical piliferous tubercles. Two small dark tubercles at the base of the antenna?, 

 and two larger ones in the middle of the head between them. Towards these tuber- 

 cles the back of the thorax slopes evenly down, so that an angle or ridge is formed 

 extending across the thorax between the insertion of the fore wings. The body is 

 pale ash-gray , with a greenish tinge on the thorax. The abdomen is slender, conical, 



