THPHROSIA CONSONARIA. 30 
thickly mottled with light or dark brown, according to 
the shade of the ground of the body. A dark ereen 
pulsating vessel, bordered on each side with yellow ish- 
ereen, forms the medio-dorsal stripe; there are no 
perceptible subdorsal or spiracular lines. The spiracles 
are white, encircled with black; the sheht humps on 
the twelfth segment black. The ventral surface is 
yellow, tinged with green; the legs and prolegs are 
brownish. (George its Porritt, “May 16th, 1872; 
H.M.M., June, 1872, IX, 17.) 
T'thPHROSIA CREPUSCULARIA. 
Plate OCXIII, fig. 2. 
On the 2nd of June, 1871, I received from my 
friend Mr. J. P. Barrett, of Peckham, several larvee of 
this species, which, being full-grown, I described as 
follows : 
Moderately stout, length about an inch and a quarter. 
Head flattened and notched on the crown, the same 
width as the second, but very much narrower than the 
third segment, which is swollen laterally, forming a 
prominent hump on each side ; the remaining segments 
are uniform, and of about equal width until the 
twelfth is reached, where there is a sheht lateral dorsal 
ridge. Skin rather wrinkled, puckered along the 
sides. ‘he third pair of legs appear longer than the 
others, caused by the fourth segment being swollen 
ventrally. 
Ground colour stone-grey ; In some specimens very 
distinctly variegated with reddish-ochreous, whilst in 
others a dull dirty black prevails. 
In the grey variety, which I will call Var. 1, the 
head is stone-grey, marbled with different shades of 
brown; the medio-dorsal stripe is dull dirty green, 
interrupted on several of the segments; to the fifth 
segment the subdorsal lines are dark sienna-brown, 
with a fine rust-coloured centre ; at this seement they 
