THE GENERA OF BRITISH MOTHS. 123 
The genus Polypogon. The insects assigned to this genus are very like the preceding in general character, 
but the Caterpillars have only three pairs of ventral legs. There is but one British species. 
Polypogon barbalis (the Common Fan-foot, No. 10). The Caterpillar of this species (No. 11), feeds on the 
Oak and Birch in September, and in March, either hybernating or being double brooded. The moth appears in 
June and July, and is rather common. Stowmarket and Tenterden are localities in which it has recently 
been noticed in great abundance. 
The genus Paracolax. This genus differs from the two preceding, in having the long middle joint of the 
palpi curved and ascending, and the terminal joint recurved. The antenne are slightly bipectinated in the 
males. The head is tufted. The fore wings are slightly elongated. The anterior tibie of the males have tufts of 
hair, slightly varying in character in the different species. 
Paracolax tarsicrinalis (the Fan-foot, No. 12). The Caterpillar of this species feeds on Trifoliwm 
Hispanicum, and the moth appears at the end of June, in woods. 
The other species, P. nemoralis (the Small Fan-foot), is much less, but similar in general colour and 
markings. P. derivalis closely resembles tarsicrinalis, and is of the same size, but has only two transverse lines 
on the fore wings instead of three, and only one on the hind wings. 
The genus Colobochyla. This genus appears to group badly with the others of the family, though there 
are some general affinities which perhaps excuse its present location. The palpi are short and slender; the 
antenne slightly bipectinated in the males. The bands of the front wings do not extend to the hind ones. The 
legs and feet are slender, and without tufts of hair. The Caterpillar is fourteen legged, but the front ventral 
pair are undeveloped. The pupa is slender and enclosed in a slight cocoon. There is but one British species. 
Colobochyla Salicalis (the Lesser Belle). The Caterpillar feeds on the foliage of the Willow in June. 
According to M. Guénée, it is entirely green, but yellow at the segmental joints. The moth appears in June, 
but is very rare. It has been taken once at West Wickham, and formerly at Bexley and Charlton in Kent. 
The second sub-family of the Pyralide is that of the Cledeobidi, containing three genera, distinguished by 
the length and slenderness of the bodies ; and by the absence of the maxillary palpi in some of the genera ; the 
labial palpi are, however, long, broad, and hairy. The antenne of the males are rather strongly bipectinated. 
The legs are slender and simple. The Caterpillars are unknown. 
The genus Sinapha has the antenna of the males bipectinated ; and the body longer than the wings. 
There is but one British species. 
Sinapha angustalis (the Small Snout, No. 14). The female of this species is much smaller than the male, 
and the wings are paler and yellower, and the central band dark. The Caterpillar is unknown, but is said to 
feed on the Marsh Willow-herb. The Chrysalis was found once under a stone by Professor Zeller, as stated by 
Mr. Stainton. The moth was once very rare, and chiefly confined to the southern counties. It has recently 
been taken in some abundance at Brighton and Lewes, and also at Plymouth and other places more sparingly. 
The genus Cledeobia is very closely allied to Sinapha, but is distinguished by the absence of the labial 
palpi, and the antennz are short and slightly ciliated. There are two British species. 
Cledeobia costestrigalis (the Dark-line Snout, No. 15). The larva of both the species in this genus is 
unknown. The moth appears in June and July, and has been taken recently in some plenty at Cambridge, 
York, and other places. 
The other species, C. albistrigalis, is distinguished by its white bands, and is rather smaller. 
The genus Schrankia has the palpi regularly curved and ascending. The antenne are short and 
simple. The fore wings are long, and rounded at the hind margin. The preparatory stages are unknown. There 
is but one British species. 
Schrankia turfosalis (the Marsh Oblique-barred). I have not been able to obtain a specimen of this 
species, but intend giving a representation of it with others in a supplemental plate. It is pale gray, with a 
conspicuous blackish blotch, followed by a white spot. It has been taken in Delamere Forest, Keswick, Crewe, 
and in the New Forest. 
} The third sub-family of the Pyralide is that of the Aglossidi, consisting principally of those moths which 
frequent buildings, as the Meal Moth, &c. There are five genera, 
The genus Aglossa. The antenne of the male are ciliated ; the labial palpi porrected, and projecting in front 
