MISCELLANEOUS GARDEN INSECTS 



411 



doubtless destroy them, but after they have become established in 

 their webs, handpicking will probably be the only effective remedy 

 on such a crop as celery. 



The Celery Caterpillar * 



Everyone who grows celery, parsley or carrots is familiar with 

 the large black-striped green caterpillar which feeds on their 

 foliage, as it is probably the most common pest of those plants in 

 all parts of the country, ragging the foliage and attacking the 

 blossoms and undeveloped seeds. It is the larva of our most 



FlG. 297. The celery caterpillar (Papilio pdyxenes Fab.) : a, full grown larva, 

 side view; 6, front view of head showing extended osmateria; c, male 

 butterflj"; d, egg; e, young larva; /, suspended chrysalis about natural 

 size except d. (After Chittenden, U. S. Dept. Agr.) 



common black swallowtail butterfly, shown natural size in Fig. 

 297. The wings of the male are velvet}- black with bands of yel- 

 low spots. On the inner angle of the hind-wing is a well-marked 

 eyespot, and the hind-wing terminates in a distinct "tail." The 

 female is somewhat larger, the inner row of yellow spots is 



* Papilta palyxenes Fal. Family Papilionidec. 



