
NATURAL HISTORY MISCELLANY. 161 
syches, I remarked that Frauenfeld (Wiener Zoologisch-Botanischen ven 
but 1864, p. 623) proves that Paludina lustrica Say, is a mollusk, a 
not a msi as supposed by me from a specimen in the óollectin 
celebrated conchologist, Prof. Dunker." 
e also figure (Fig. 33) an itte form found near Port- 
land, Maine, by Rev. E. C. Bolles. The larva builds a thin long 
conical sandy tube, sant between two ‘‘needles” of the 
We do not know the adult form. Fig. 34 

80, we suppos 
is the Limnophilus satis a dial 
Stedt, a very abundant species in the arctic regions. 
The imago of the Caddis-fly has a rounded body, 
with moderately broad, parallel veined wings, which 
small moths. The females lay their eggs in usus. 
| masses on aquatic plants, above or beneath the sur 
| face of the water. e larve are found erates! in the bottom of 
ponds, in cylindrical cases of grass or stems E reeds, or bits of sticks, 
sand, minute shells, etc. They assume different forms, sometimes a long, 
conical shape, or imitating snail shells. The larva lines the interior with 
| Silk, and by bristles on the side of the body and a pair of anal hooks 

- 
E 



; ia its body sonans to the sides of the case while it Lr He it over 
: ie eat large quantities 
=i id Seco and 
inn bae while many are herb us 
the larger ones eating whole waves that 
have been submerged, while the er 
ones leave the veins entir t 
to change to pups, the larve close up 2 
mouth of the case with a net-work like 
State for the passage of the water for seul When about to leave 
the pupa state they crawl up stems of plants, or the smaller species use 
their light cases as rafts to rest upon as their wings are dryin 
Neuronia semifasciata (Fig. 35) is our largest species, and is takon away 
from damp places; but the smaller species are only taken on leaves of 
bushes and herbage by streams and pate: They run swiftly, but fly 
with eg difficulty. The species are numerous. We should be greatly 
gibus specimens of the Helicopsyche. —A- S.P 
NATURALIST, VOL. III. 

