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readily distinguish this species from all others found on cotton. Not 
rare. Observed feeding on the cotton aphis and the cotton Aleyrodes. 
In Florida I have seen it feed upon various aphides, and scale insects 
of the genus Lecanium. 
The two-spined green soldier-bug (Biplodus luridus Stal.) is similar 
in its habits to those just mentioned; both the nymph and imago were 
found on cotton. 
The social soldier-bug [Diplodus socius Uhl.). Rare. Habits are the 
same as allied species. 
The mosquito- shaped soldier bug (Stenopoda culiciformis Fabr.) bears 
a superficial resemblance to some of the above species, but is very much 
larger and differs in many respects. It does much good in destroying 
various caterpillars, impaling them upon its short stout beak and suck- 
ing them dry. 
The white Ormenis (Ormenis sp.) was seen upon cotton but twice, 
and is mentioned here only as an occasional cotton insect. 
The common Lamenia (Lamenia vulgaris Fitch). Not uncommon on 
cotton, always sucking the juices from the stem. It is a small insect 
and the injury it does is slight and not apparent to the naked eye. 
The grooved-legged Scolops (Scolops sulcipes Say). Only occasion- 
ally found on cotton, its food plant being usually coarse grasses, and 
the injury from the punctures of its beak is but slight. 
The notch-backed tree-hopper (Entilia sinuata Fabr.). I was sur- 
prised to find this well-known membracid, distinguished at once by the 
deep notch or excavation on the middle of the back, occurring in numbers 
on the terminal shoots and newly-formed leaves of cotton. It seems 
thoroughly established on the cotton, and I observed it puncturing and 
feeding on the sap. The form was slightly smaller and darker colored 
than that found near Washington, but otherwise appeared identical. 
While I did not succeed in finding the eggs, I have no doubt that they 
are deposited under the epidermis of the young shoots and the whole 
transformation from egg to imago takes place on the plant. No appre- 
ciable injury from their attacks was observed, as they occurred only 
on plants of vigorous growth. 
The white-margined sharpshooter (Oncometopia costalis Fabr.), an 
elongate black and white tree-hopper, was not uncommon on the stalk, 
puncturing and sucking its juices. 
The wave-mark sharpshooter (Oncometopia undata Fabr.) is much 
more frequently met with than 0. costalis. 
The glassy-winged sharpshooter (Homalodisca coagulata Say) can 
always be found in plenty feeding on the stalk or a branch of the cot- 
ton. It invariably clings to the stalk with the head pointed downward 
and when disturbed flies off with a whirring noise. An account of its 
life-history by Eiley and Howard is given in Insect Life (vol. v, p. 150). 
The yellow-headed tree-hopper (Biedrocephala flaviceps Riley) is 
better known as a wheat insect. I took several specimens feeding on 
cotton. 
