315 



females. The whole body is more or less distinctly pruinose aud o;enerally marked ou 

 the abdomen with four longitudinal rows of round, white, pulverulent spots, whuh 

 give them a peculiarly pretty appearance. 



Winged /em rt/e.— Expanse of wings, 4.6 to 6™™; length, 1.2 to 1.8'"'". Shape more 

 slender than in the apterous form, autenme barely reaching to nectaries. Legs 

 longer and more slender, and the nectaries and tail rather shorter, than in the apte- 

 rous form. General color yellow, yellowish-green, or quite dark green, with the 

 base of the abdomen in the darker forms more or less distinctly orange. Eyes 

 dark brown, autenuie black, head, a broad baud across the prothorax, mesotho- 

 racic lobes and sternal plate, four lateral abdominal spots and nectaries black. 

 Remaining parts of thorax more or less decidedly orange. Legs yellowish, the 

 coxie, apical portion of femora aud tibiie, aud the tarsi, blackish. Rostrum yel- 

 lowish, its base aud apex blackish. Tail greenish or dusky ; wings delicate, color- 

 less, iridescent, base and subcosta more or less distinctly yellowish. Veins black 

 and very slender. Stigma pale greenish or yellowish gray. Antennal Joints, except 

 the two basal ones, distinctly serrated or imbricated. Joint seven is somewhat the 

 longest, while the third comes next in length; joints four and five are subequal 

 in length, each somewhat shorter than the third; joint three provided with a 

 quite regular, straight row of five to seven sensoria and one near apex of fifth aud 

 sixth joints. 



The sexes have so far remained unkuown, though the winter eggs, 

 which resemble closely those of other aphides, were discovered on 

 Portulaca and strawberry ; they measure about 0.6"""' in length and are 

 of a regularly oval shape. Their color is yellowish or greenish when 

 recently deposited, which soon changes to jet black. 



ENEMIES AND PARASITES. 



Among the most active enemies of this as well as other plant-lice, 

 may be mentioned the different species of Coccinellidjie or ladybirds, 

 the syrphid flies, and aphis lions or lace- wing flies. The most effective, 

 however, are the parasitic Braconidaj, belonging to the genus Lysiph- 

 lebus, among which L. testaceipes Cr. aud L. citrapMs Ashm. appear to 

 be the most important in keej)ing this particular aphidid in check. 



THE COTTON WORM QUESTION IN 1894. 



By E. A. SciiWARZ. 



A rapid trip made under the direction of the Entomologist through 

 the more important parts of the cotton belt from Texas to Alabama 

 showed that up to the middle of August there were no cotton worms 

 anywhere in tlie whole cotton belt except in the bottom lands of Texas 

 south of the Southern Pacific Railroad. But even there the worms 

 were not found in alarming numbers, and it could be easily foreseen 

 that even under the most favorable conditions the spread of the insects 

 would not be a general one this season. Some individual farmers in 

 the Colorado bottom, south of Eagle Lake, had found it advisable to. 

 poison their cotton fields, but these isolated places constitute all that I 

 could learn of remedial measures taken by the planters this season. 



