72 
genera enumerated above, and it would be misleading to refer 
them without qualification to those genera. I therefore adopt the 
expedient of furnishing the following table, which will enable the 
student to determine with ease the genus to which I should refer 
any specimen that might be under observation, and at the same 
time will indicate which of the species I describe are not typical 
representatives of the genera in which I place them. The species 
of this non-typical description are for the most part allied to 
Copidita and Oxacis by their principal characters rather than to 
any other genera, and it is worthy of note that the characters dis- 
tinguishing them from Copidita and Ozacis are in most cases 
charactersthat Mr. Horn regards (oc. cit.) as not involving generic 
distinction from Copidita and Oxacis although exceptional in those 
genera. I may say however that I do not share this opinion 
with Mr. Horn, and that I am deterred from founding new 
genera on those characters only by the uncertainty that prevails 
(or at any rate has lately prevailed evenif Mr. Champion’s recent 
Catalogue can be regarded as final on the subject) as to what are 
the real types of some of the older genera. 
I should add that Psewdolycus apicalis, Macl. (of which I have 
an example compared with the type) is certainly not a member 
of any of the genera mentioned in the following table. I doubt 
its being an @demerid, judging from such examination as is 
practicable without damaging my unique example, and incline to 
think it a Pyrochroid. U may remark in passing that M. Lacor- 
daire’s diagnosis of the Pyrochroide differs very little from that 
of the Hdemeride, the principal distinctions he gives being that 
the former has mandibles scarcely passing the apex of the labrum, 
the head narrowed behind into a neck, antenne pectinated or 
flabellated ; while in the latter the mandibles are longer, the 
antenne simple or with some compressed joints, and the head 
gradually narrowed behind. Psewdolycus apicalis has mandibles 
reaching considerably beyond the labrum, the head with cer- 
tainly a little more of a neck than Pseudolycus, and the antenne 
strongly serrate. Comparing examples of Pyrochroide and 
Gdemeridein my own collection I find that the Gdemeride 
have (at least) the apical joint of their tarsi spongiose beneath 
and their prothorax more or less cordiform (or at least tending 
towards that shape), neither of which characters can I find in 
any Pyrochroid known to me. JP. apicalis, Macl., presents 
neither of these latter characters. In the following table I have 
included this species and the two doubtful Wdemerid genera, and 
place their names in italics to indicate the uncertainty of their 
position. 
