REVIEWS. 
189 
Lepidopterons larvae, are wanting, and they are replaced by membraneous 
processes, or prolegs; yet neither on these segments, nor on the remaining 
segments, each of which is furnished with a pair of prolegs (making 
eighteen in all), have the prolegs the usual coronet of little hooks ; these 
larvae are, consequently, bad hands at walking, which, nevertheless, they 
have to do when full fed, &c. Between these extremes there are many 
gradations found, but the six true legs are uniformly present, though in the 
family Exapatidae the third pair are usually club-shaped. So much de¬ 
pends on an accurate knowledge of the larvae of this group, that it is to be 
hoped that entomologists will pay especial attention to them, particularly 
since, apart from then’ scientific importance, their habits are so strange and 
eccentric, that they would amply repay any trouble that might be spent on 
them, and truly they are herein sufficiently exacting. 
The family Tineidae, to which the clothes-moths belong, contains fourteen 
genera—the first two of which have apterous females. The three last, had 
they agreed in the development of the maxillary palpi, would probably 
have been formed into a separate group, from the great length of the 
antennae in all of them ; “ but the development of the maxillary palpi in 
Nemophora, and the want of them in Adela and Nemotois, show that they 
are not sufficiently related inter se to warrant such a step; and to place 
Adela and Nemotois in a distinct family, leaving Nemophora among the 
Tineidae, would rather outrage our ideas of relationship.” After all, the 
present arrangement is not quite satisfactory, and we should not be sorry 
if increased knowledge were to open a way for a partial re-grouping of the 
genera of this family. 
In the 2nd genus, Solenobia , “ we meet with the singular physiological 
fact of unimpregnated females laying fertile eggs; and not as the exception, 
but as the rule.” The same anomaly has, as is well known, been observed 
among the Aphides, but not, as far as we know, as a regular thing, al¬ 
though, in some cases, fertile eggs have been laid by unimpregnated 
females through several generations in succession; the fertile eggs laid by 
one female producing other females who, in like seclusion, have laid fertile 
eggs, and so forth. We do not know of any other instance among the 
Lepidoptera. 
The 3rd genus, Diplodoma , is remarkable, as the name implies, for the 
double case in which the larva is enclosed. The 13th genus, Adela , is 
very tiresome, and “ certainly requires sub-division—hardly two species 
showing an entire accordancethere are but six species in it, so it must 
be a most inharmonious little group, and will probably be dealt upon at a 
future time. 
