INSECTS AFFECTIXc; I'ARK AND WODDI.AMi IKIJ.- 543 



numerous at Brunswick Mc, as to seriously injure linilens on the campus of 

 Bownloin Colle.L,fe, accordin>; to I )r Packard. Dr ImIcIi states that this 

 species feeds on ehiis throui,diout the season and is also common on willows. 



Description. This insect has been described in its various stages, by 

 Dr Packard as follows : 



]io<r. Rather lar"-e, oval c\ liiulrical, \ellow, several together attacheci 

 by one entl ; about 1.5 mm ni l(n<;in. 



Larva. Bodv very thick, ciu'veil up likt- that of the grub of the Colo- 

 rado potato beetle, being much swollen b(;hind the thoracic segments, while 

 the tip of the abdomen' is curved down. Head hone)--yellow, darker over 

 the jaws; antennae bluish, exc(;i)t at liasc- ; e\ es black. Prothoracic shield 

 blackish in the young before the last moll; in full grown intlividuals not all 

 black, but pale, with four irrt-gularly scjuare lilack spots. Body behind 

 dirty white with a row of dorsal and lateral dusky spots. Legs pale, 

 spotted with l)lack at the joints. A pair of mesothoracic spiracles, and 

 eight pairs of smaller abdominal ones. Low down, on the sides of the sec- 

 ontl and third thoracic segments a curvilinear black spot. Length, S to 



9 uim. 



Pupa. Bodv pure white ; prothoracic shield with long scattered hairs 

 around the edge and in two groups on the back; antennae curving around 

 between the eyes and jaws, and with the ends resting on the tips of the 

 elytra. The insect undoubtedly descends into the earth to pupate. 



Beetle. Head, ])rothorax, and undersiile of body dark coppery green, 

 with scattered pits. .Antennae, palpi, and legs pale i)itch\- yellow; elytra 

 coppery green and whitish, the green forming a broad median stripe, send- 

 ing prolongations outwards toward the middle of the elytra, the tirst pair 

 ofljranches nearl\- jjarallel to the band, the second becoming more and more 

 at riiJ-ht ano-les to the band, the last short and broad near the tip of the 

 body. Eleven rounded dark green spots in the whitish field ; the pair near 

 the shoulders gourd-shaped ; two of the sjjots behind the midiUe of the 

 elytra touchingeach other. The pits or punctures near the sutures of the 

 elvtra arranged in three lines parallel to the median line of union of the 

 body; elsewhere they are arranged irregularly. 



Life history. 1 )r Packard stales that \.\\v lieetles may be found abroad 

 from May to June and that a second ijrood occurs in September and ( )cto- 

 ber. The grubs hatch from eggs deposited on the leaxcs in ihe spring, 

 attaining full growth toward the end of ]\\\\v in Massachusetts. The trans- 

 formation of the adult is believed by I )r Harris to occur in the ground. 

 Amon"- natural enemies, Dr Hagen records Podisus si)inosus Dall. 



