THE BEET ARMY WORM. 35 



The caterpillars of Extfgiiwne acrcea are parasitized by Apanteles 

 r'deyanus Ashm. 



THE ARGE TIGER MOTK 



{A2}ante><ls arge Dru. ) 



The caterpillar of this species is quite similar to the one last men- 

 tioned and is common on cotton, but has never been noted as very 

 injurious. Our records concerning- its life history are as follows: 



Table Vl. — Transformation records of the urge tiger rnotJi. 



Apparantly the life history is very much like that of the salt-marsh 

 caterpillar, probably three generations occurring in a year. 



The Division of Entomology received eggs of this species on a 

 peach twig from J. W. Porter, Charlottesville, Va., April 22, 1887. 

 which hatched May 4. The larva? commenced to pupate June 23, 

 and moths issued June 28 and July 2, although even on the latter date 

 a number of larvae were still feeding. Doctor Chittenden states that a 

 moth attracted to light April 15 laid eggs April 16, which hatched by 

 the end of that month. Another lot of larvje transformed to pupte 

 June 4, and moths emerged June 16. while others pupated and emerged 

 just three days later. 



THE BEET ARMY WORM. 



( Caradrina exigua Hbn. Fig. 19. ) 



Larvie of this species were found eating cotton foliage at Terrell 

 June 20, 1904. These pupated June 23, and a moth emerged July 1. 

 July 3 at least 75 eggs were laid in several masses on both sides of the 

 leaf. These hatched July 6, the larvte pupated July 29, and moths 

 emerged August 4. More larva? were taken in the field July 2, eat- 

 ing leaves and into the squares. These pupated July 10, and moths 

 emerged July 18. 



A very complete account of this species has been given by Doctor 

 Chittenden. « Recently Prof. C. P. Gillette* has published consider- 

 able data concerning the life history. His observations show that in 

 Colorado injury by larva? has been observed in June, the eg^ hatching 

 about June 1; again in July, all of this brood having pupated by Jul}' 

 29, and again in August. His observations, as well as those recorded 



«1902: Bui. 33, n. s., Div. Ent., U. S. Dept. Agric, pp. 37-46, figs. 8 and 9; and 

 1903: 1. c, pp. .36-37. 



M905: Bui. 98, Colo. Agric. Exp. Sta., pp. 13-15, PL 111. - 



