130 
Psyche 
[June 
bursts on the sides and the dorsal as well as the ventral sides 
remain covered by the brightly colored larval skin. 
It is therefore possible that the diffuse casting of a thin 
skin in the female of the “trilobite-larvse” after the oviposition 
or after the development of the sexual organs is to be explained 
as a reminiscence of the habits of its ancestors to pupate within 
the larval skin. 
Strictly speaking the present day female of the “trilobite- 
larvse” represents nothing more than a strongly condensed form 
of a larva and pupa and imago of a Lycid-female. 
The larva is clearly indicated by the larva-like organiza- 
tion in general, simple eyes and mouth parts, one clawed-tarsi 
and 9 abdominal segments; the pupa by the general lack of 
pigment and probably by the diffuse casting of a thin postlarval 
skin; the imago finally by its sexual maturity. 
The discovery of egg-laying larva-like females and the 
first male of the “trilobite-larvae” of large size from Borneo 
makes it highly probable also that the other large “trilobite- 
larvse” from Borneo and other parts of the Oriental Region are 
nothing but female-larvae of Lycid beetles. When the male of 
the second largest species from Borneo has proved to be such a 
small Lycid it is probable that the males of the other smaller 
species belong to the smaller forms of the Lycidae. The charac- 
ters of the first male known point decidedly towards a fairly 
close relationship with the genus Dihammatus of which so far 
as I am aware only three species are recorded from Borneo 
( D . pattens, D. abditus, D. borneensis), some few other ones from 
Java, (D. cribripenuis) Sumatra, ( D . atriceps ) and Formosa (D. 
atricolor ) . 
That our knowledge of the Lycid beetles is, indeed, only in 
its infancy is clearly shown by the large number of new genera 
and species described by the well-known German entomologist, 
the indefatigable Mr. R. Kleine. My own material from my 
expedition to the unknown Mt. Murad has already been worked 
by Mr. Kleine and his results will be published in the next number 
of the Sarawak Museum Journal. More than 66% of the forms 
are unknown and there are many new genera. Professor C. F. 
Baker of Manila, who so keenly and in a most admirable way 
