| 1886] Entomology. 651 
and bayous which are permanent and do not dry up in midsum- 
er. ey are found attached to the masses of drift-wood and 
leaves which form at points and which, by impeding the streams 
elow, form a more rapid current at the surface. The larve and 
pupz have been absolutely connected with their respective adults, 
and a careful study of the general character of the breeding 
es already indicates that the increase of the pests of late 
years is indirectly due to the crevasses in the levees, and that we 
have here another strong argument for the preservation and care 
of these last 
Larvat Form or PoLYDESMUS CANADENSIS.—While at Enter- 
prise, Fla., I found, April 8th, under a paimetto log a Polydesmus 
of May. The larva, soon after hatching, is short and thick, 
tered, large, somewhat club-shaped spines. The antenne are 
four jointed. There were only three pairs of legs, and they were 
appended to the first, third and. fourth segments respectively, 
there being none on the second segment behind the head. Length 
of the animal 1.2mm. 
€ larva is essentially similar to that of the European Poly- 
desmus complanatus, figured by Metschnikoff (Zeits. wissen. Zool., 
XXIV, pl. xxvı, fig. 7), but apparently has one more segment.—A. 
S. Packard, l 
: OCCURRENCE oF EARLY STAGES oF BLEPHAROCERA—I send you 
| is Seg a small package containing specimens of larval forms 
t I collected last summer at Gilboa, Schoharie county, N. Y. 
e rocks ina 
“~Y Were all found in the same situation, viz., on 
Wwater-fall, at 
_ Mode of attachment to the rocks is by a chitinous ring, armed with 
longitudinal rows of hooks. The tubercle on the prothorax is 
“comotion as well as of attachment. Just above the disk, at 
~ Posterior extremity of the body, on the dorsal surface, there 
apt opening through which, in many specimens, a tufted organ 
appears, Which I do not remember to have seen in other larvæ. ee 
te is 
é 
