28 
temmelig stor rundagtig Forhoeining (0), Anlegget 
til Gienstilkene. Bag Folerne folger 3 Par ligeledes 
polsedannede, men betydelig mindre Vedheeng, hvori 
man let erkjender Anlegget til Mandibularpalperne 
(Mp) og de 2 Par Kjever (m', m*). Langs Siderne 
af den bagre Del af Legemet sees en uafbrudt 
Rekke af ialt 11 Par simpelt koniske Fortsatser, 
hvoraf de 8 forreste er af fuldkommen ens Udseende 
og staar nesten ret ud til Siderne, medens de 3 ba- 
gerste Par er mindre tydeligt fremragende og mere 
nedadrettede. Alle disse Fortsatser er egentlig kun 
simple poseformige Udkrengninger af Larvehuden, 
og ferst indenfor dem sees Anlegget til et til- 
svarende Antal Lemmer. De forstnevnte 8 Par 
Fortsatser (brp) synes at svare til et lignende 
Antal Branchialfodder, medens de 3 bagerste Par 
(pl) aabenbart antyder ligesaamange Svommefodder. 
Den bagenfor liggende Del af Puppens Legeme er 
uden ethvert Spor af Fortsatser og simpelt koniskt 
tillobende. Indenfor den gjennemsigtige Larvehud, 
som temmelig lost omgiver den bagre Del af Em- 
bryonets Krop, er allerede en tydelig Segmentering 
bemerkelig, og man kan herved temmelig ngie be- 
stemme Greendsen mellem de forskjellige Kropsafsnit. 
Kun det bagerste Afsnit, Halén er endnu ufuldkom- 
ment segmenteret. I den forreste Del af Legemet 
sees til hver Side, ligeledes indenfor Larvehuden, en 
utydelig halvcirkelformigt buet Linie (c), der fore- 
stiller den frie Kant af det sig udviklende Ryg- 
skjold, og helt fortil, umiddelbart ovenover Anlegget 
til Gienstilkene, er der et lidet knudeformigt Frem- 
spring (R), der aabenbart forestiller den sig udvik- 
lende Pandeplade. I Axen af den bagre Del af Le- 
gemet har allerede Tarmen anlagt sig i Form af en 
med et klart lysegult Inhold fyldt simpel Kanal, 
der dog endnu er lukket i sin bagre Ende, medens 
den fortil staar i aaben Kommunication med den 
rummelige, af Blommemasse fyldte Hule, der ind- 
tager den dorsale Del af Hovedet. Fig. 11 forestiller 
det umiddelbart efter Puppestadiet folgende Udvik- 
lingstrin. Hvad der vesentlig adskiller dette Sta- 
dium fra det foregaaende, er, at Larvehuden nu er 
afkastet, saa at de forskjellige Kropsvedheng alle 
er frit fremragende, ligesom Legemets Segmentering 
ogsaa udvendigt er tydelig. Den dorsale Krumning 
af Embryonet er nu saa sterk, at Legemet nesten 
beskriver en fuldsteendig Halvcirkel. De til Hove- 
det herende Lemmer har voxet adskilligt i Storrelse, 
men er forevrigt kun lidet ‘forandrede. Dog bemer- 
kes paa det forreste Par (a') en Jiden Bigren, som 
antyder det bladformige Appendix. Branchialfedderne 
(brp) er tilstede i sit fulde Antal (8 Par) og viser 
sig alle dybt tvekleftede, samt lige nedadrettede. 
Derimod findes der endnu kun anlagte 3 Par Svomme- 
fodder (pl), idet det 4de Par ferst meget senere ud- 
vikler sig. Heller ikke sees noget Spor af Hale- 
fodder. Halen selv har imidlertid nu sit fulde Antal 
| which however have, as yet, an extremely im- 
perfect appearance, forming‘only plain conically 
shaped prolongations, The 2 foremost pairs (a', a*) 
which represent the 2 pairs of antenne, are the largest 
and most distinctly separated. They have almost 
a sausage-shape, and are curved backwards along 
the sides of the anterior body. Between them, in 
the middle, there is seen a distinct flap-shaped pro- 
minence (L.), which is the upper lip, and in front 
of them, on either side, a pretty large roundish pro- 
minence (QO), the rudiments of the ocular stems. Be- 
hind the antenne succeed 3 pairs, likewise sausage- 
shaped, but considerably smaller appendages, in 
which we easily recognize the rudiments of the man- 
dibular palps (Mp) and the 2 pairs of maxille (m', 
m?*). Along the sides of the posterior part of the body 
there is seen a continuous series of 11 plain, conical 
projections in all, the 8 foremost ones of which-are 
of exactly the same appearance and stand almost 
straight out at the sides, while the 3 backmost pairs 
are less distinctly projectant and directed more 
downwards. All these projections are really only 
plain bag-shaped bulgings of the larval-skin, and 
first to the inside of them is there seen the rudi- 
ments of a corresponding number of appendages. 
The first named 8 pairs of projections (brp) corre- 
spond, it would seem, to a similar number of 
branchial feet; whilst the 3 backmost pairs (pl) evi- 
dently indicate the same number of swimming feet. 
The portion of the body of the pupa situated behind 
is without the least trace of projections and runs 
out in plain conical form. Inside of the transparent 
larval skin, which pretty loosely surrounds the pos- 
terior portion of the body of the embryot, there is 
already a distinct segmentation noticeable, and we 
can by it pretty distinctly determine the demarcation 
between the various divisions of the body. The 
backmost division only, the urosome, is as yet imper- 
fectly segmented. In the anterior part of the body 
there is seen on either side, likewise inside the larval 
skin, an indistinct, semicircular curved line (c), which 
represents the free edge of the carapace in course 
of development; and quite in front, immediately 
above the. rudiments of the ocular stems, there is a ~ 
small nodular prominence (R) which evidently re- ° 
presents the frontal plate in course of development. 
In the axis of the posterior part of the body the — 
intestine has already begun to appear in the form 
of a plain canal, filled, with a clear light yellow 
substance, which is still closed at its posterior ex- 
tremity, whilst, in front, it stands in open commu- 
nication with the roomy cavity filled with yolk 
substance which occupies the dorsal part of the head. 
Fig. 11 represents the stage of development imme- 
diately succeeding the pupa stage. What chiefly dis- 
tinguishes this stage from the preceding one is, that 
the larval skin is now thrown off, so that the various 
