INSECTS INJURIOUS TO BEANS AND PEAS 319 



long to the tip of the abdomen and twice that length to the tip 

 of the closed wings. The abdomen lacks the white spots of the 

 wingless females and pupae. Legs are black, except shanks, 

 which are whitish with dark tips. Otherwise the winged form 

 resembles quite closely the wingless form. The black color 

 and white spots on the abdomen of the wingless females and 

 pupae will readily distinguish the species from other aphides on 

 beans. 



Control. Spraying with dilute kerosene emulsion has proven 

 the best means of combating the pest according to Osborn and 

 Sirrine, diluting the stock solution fifteen times, or so the spray- 

 ing mixture will contain about 5 per cent of kerosene. It seems 

 that the foliage of the bean is quite susceptible to injury from any 

 free kerosene, and probably whaleoil soap 1 pound to 5 or 6 gal- 

 lons, would prove safer and equally efficient. As it is frequently 

 necessary to spray beans with Bordeaux mixture or other fun- 

 gicides for fungous diseases, the whaleoil soap might be readily 

 sprayed at the same time. 



The Gray Hair-streak Butterfly * 



The caterpillars of the Gray Hair-streak Butterfly have been 

 noticed injuring beans, peas and cow-peas, for a number of years 

 throughout the United States, but the injury is usually local and 

 not often serious. The caterpillar is about one-half an inch long, 

 decidedly flattened, somewhat oval, bright green, with head 

 retracted in the thorax, and covered with short hairs, which give it 

 a velvety appearance. The adult butterfly is a handsome bluish- 

 black butterfly with red anal spots as shown in Fig. 177. The 

 caterpillar -has been a serious enemy of hops, and in the South 

 attacks cotton squares, being termed the cotton square-borer, 

 but the pods of legumes seem to be the preferred food. Where 

 injury recurs, thorough spraying with Paris green or arsenate 

 of lead as the pods are forming will doubtless hold the larvae in 

 check, as the eggs are laid upon the foliage and the young larvae 



* Uranotes melinus Hubn. Family Lycoenidae. 



