67 
food, and it is not likely that Lepidoptorists will follow the example 
of some Botanists by classifying variata as an alien, even if much 
stronger evidence than is yet available should ultimately point to its 
recent introduction. 
SOME LYC/ENID NOTES, WITH A DISCUSSION OF THE 
SEGMENTATION OF THE ABDOMEN (N LEPIDOPTERA.* 
(Bead March 4th, 1913, by T. A. CHAPMAN, M.D.) 
Our British Lycsenids are meagre in numbers, yet they furnish 
examples of nearly all the tribes and genera that are found in the 
palaearctic region. When we pass beyond the palaearctic region we 
meet with not a few other tribes. 
Our British Lycamids may be divided into three divisions :—The 
Chrysophanids, or coppers, which do not possess any scent scales. The 
Theclids, which possess scent scales aggregated into a patch on the 
upper surface of the upper wing, and the Blues (or Lycienines), whose 
scent scales are evenly distributed on the upper surface of the wings, 
and are of the well-known “ Battledore ” form. There are, however, 
exceptional species, both of Theclids and Blues, that appear to be 
without scent scales, just as, similarly, the scent apparatus of some 
exotic groups are present and absent in allied genera, or even in species 
of the same genus. 
The Lyctenines, or Blues, are divisible into a number of tribes or 
genera (according to one’s views of sub-divisional values). Calling 
them tribes (with Tutt) we have in Britrin:— 
Everidi ( minimus , argiades). 
LycxEnopsidi ( argiolus ). 
Lyc^enidi ( avion ). 
Lampididi ( baetica ). 
Plebeidi (teams, bellargus, corydon, senviargus, astrarche, aegon ). 
In the palaearctic list the Plebeids are similarly more numerous 
than all the other blues taken together. They are divisible into 
groups, most of which are sufficiently numerous to justify regarding 
them as genera. 
These several tribes of blues are capable of definition on various 
characters. The male appendages, without any other characters, 
afioid differences to separate them without reference to other details. 
The Everids are distinguished by the dorsal armature (uncus) of 
the male appendages being largest in the middle line, i.e., not divided 
into two lateral pieces. The clasps have also often the peculiar lono- 
curved harps seen in argiades and minimus. 
The Lyctenopsids are distinguished by having the dorsal portion 
divided most distinctly into two pieces and being without the hooks 
that occur in all other tribes and in nearly all Lycsenidie. (Jur 
Argiolus is interesting as having, with several other species, apparently 
* This paper is somewhat abbreviated. 
xxii.-xxiii. 
