in the pupe of Heterocerous Lepidoptera. 117 
codes. The former has a very delicate transparent 
shell, and the whole egg looks so soft and unprotected 
that it seems more suited for the internal situation of an 
Adelid egg than the exposed position in which it is laid ; 
whilst that of Limacodes asellus is a flat, colourless, 
transparent speck, much like that of Nepticula, but not 
resembling that of any true Bombyx. 
I have specially avoided notice of those Tineine that 
appear to present some indications of transition between 
the Obtecte and Incomplete. But of those that are in no 
sense transitional, it is interesting to note, in the Pyrales, 
the possession of maxillary palpi, and the habit of hyber- 
nating as full-fed larve, characters much commoner in 
Incomplete ; and in the Lithocolletes, on the other hand, 
the obsolescence of the maxillary palpi, the habit of 
hybernating as a pupa, and the loss of freedom in the 
first four abdominal segments. Remaining, however, 
true Incomplete in the free 7th male segment, in 
mobility, in dehiscence, and in the facility with which 
the appendages separate in a sound pupa. 
I have endeavoured to show the leading points in a 
tabular form, but, like all linear arrangements, it does 
not give the proper values to the several facts, emphasi- 
sing some and slurring over others. 
I hope some day to go into details as to some of the 
families, when I have material to more fully work them 
out; but I hope that others more able will in many in- 
stances forestall me. 
To summarise the facts here brought forward. There 
are two very distinct types of pupx in the Lepidoptera- 
Heterocera, each presenting such a constant set of 
characters that the members of each group must be more 
closely related together than to any of the other group. 
This shows the true relationships of the group of 
Macros (?) Zygena, Sesia, Hepialus, Cossus, &c. 
It also shows the Pterophorids to be unrelated either 
to Pyraloids or to Alucitids. 
It shows some of the directions in which the Tineina 
must be divided. 
The existence of a well-developed maxillary palpus in 
sundry pup whose imagines are without it. 
A certain amount of light on the relations of the 
glazed eye. 
A definite diagnosis of Macro-Heterocera. 
