\^Q [November, 
surface H. Iphicla : the underside of the liind-wing offers no difference, 
except that the anal angle has two parallel blackish lines in place of 
the black spots. The upper surface differs from that of S. Iphicla and 
all others of the same group in the tawny-orange spot of the fore- wing 
extending to the first median branch ; the nervures crossing it are 
black ; it is very broad on the costa, and is there divided by an oblique 
spot of the dark brown ground colour of the wings : the central belt of 
the wings is pure white. 
Guatemala : Polochic valley. 
CTo he continued.) 
Bescriiption of the larva of Hadena suasa. — I have been much indebted to the 
assiduity of Mr. Batty, of ShefiBeld, who kindly sent me, in July last, some larvte 
of this species in different stages of growth, reared from eggs on broad-leaved 
plantain ; they, however, seemed afterwards equally partial to Polygonum aviculare, 
and fed up rapidly, retaining their colours and markings throughout their growth. 
They were full fed and had gone to earth by the 28th of July, and on the 23rd of 
August one moth emerged, greatly to my surprise, and is a dark smoky-brown 
specimen. 
The larvaa are uniformly cylindrical until nearly full grown, and then become 
a little tapering towards the head ; gi;ound colour green or yellowish-green, most 
minutely irrorated more or less with yellowish atoms ; the dorsal line rather in- 
distinct, and slightly darker than the ground colour ; the sub-dorsal line absent in 
some, but present in others as a fine black, rather oblique streak on each segment, 
terminating at the hindormost tubercular dot ; the dots are black, and arranged on 
the back in the usual trapezoid form ; the si^iracular line is composed of a black 
fusiform mark on each segment, with the white spiracles on their lower edges, 
brilliantly contrasted by a stripe of bright yellow below along the side ; the belly 
and feet green ; the head and dull plate on second segment brownish. 
There is a variety in which the ground colour is brown or olive-brown, the 
dorsal hne strongly marked as a double dark brown line vanishing at the hind part 
of each segment in some, and in others running continuously through a darkish 
brown triangle or diamond on each segment ; individuals occurring with either form. 
The sub-dorsal appears as a series of oblique dark brown streaks, each streak 
commencing a little on one side of the segment in advance, and abruptly terminated 
on the next by the hinder trapezoidal tubercular dot, the dots are black, and placed 
on small yellowish specks. Along the side of each segment is a triangular shape 
of dark brown, their bases bounded by the black fusiform marks containing the 
white spiracles, and immediately followed by a bright yellow stripe, its lower edge 
gradually tinged with the brownish colour of the" belly and legs. — W. Bucklkr, 
Emsworth, August, 186(5. 
Description of the larva of Hepialus sylvinus. — My kind fi-iend, Dr. Knaggs, 
most obligingly sent me two larvse of this interesting species, which he found 
feeding on the roots of dock, and which were full grown by the 10th July, 1866. 
