202 Mr. B. T. Lowne on immature sexuality in Insects. 
Norr.—I would suggest, that some of the ideas I have thrown out con— 
cerning the horns of many Lamellicorns, might be easily worked out by 
some Entomologist living in the country, by rearing the insects, and 
watching the results with different kinds of food. In London, with much 
other work, I could not possibly undertake the care of large numbers of 
living insects. 
CRUSTACEA. INSECTA. SCOLECIDA. 
AMETABOLA | METABOLA |TREMATOIDA 
Inherited, Never producing young 
or direct larve like Cecidomyide 
larva. Unknown ancestral Joa, . | & Cercaria. Originally 
perhaps represented by embryonic sexually mature like Naw- 
states, and hyper-metamor- plius, Zoea, &c. 
phosis. 
rae } Sexually mature. 
Imago.* | Imago.* Adult Sexually mature, some- 
form* | times reproducing agam- 
(Fluke). | ically, like Aphis, and 
many other insects. 
Acquired | Acquired | Acquired | Exhibiting a tendency 
larval form.|pupal form.|pupal form | to sexual maturity. The 
(Cercaria | wingless condition of 
pwpa). some moths may be look- 
ed upon as an acquired 
form approximating the 
pupa state. 
Acquired | Acquired Sometimes reproducing 
larval form.|larval form | larve, which ultimately 
(Cercaria).| produce the adult form, 
passing through the pupa 
state, like Cercaria, Ceci- 
domyide. 
* Highly modified from forms parallel with the adult Crustacea. 
