5^8 NEW VORK STATE MUSEUM 



Tlu' reccnth' hatcht-d larva is vl-IIow with a large, black head, the spines 

 forming little black tubercles of nearly uniftirm size. The head is browner 

 after the first molt and the spines and strijies of the full fed larva more 

 apparent. The thirtl stage is ver)' like the lourth or last, excejit that the 

 caterpillar is smaller. The full grown larva is an inch and a half long, pale 

 yellowish green, longitutlinall)' stri])ed above alternately with eight very 

 light yellowish green lines and seven of a darker green, inclining to black, 

 with two slender black spines on the second segment behind the head, and 

 two lateral rows of sharper, shorter spines. Head copal yellow ; abdominal 

 segments seven and eight a little dilated and rose-colored at the sides. 



The moth is rose-colored, with the fore wings crossed by a Ijroatl, pale 



yellow band. The hind wings are pale yellow. The body is yellow and 



the underside and legs rose-colored. ^\'ing spread about 2 inches. 



Semilooper maple worm 



IIoiiioptiTa hiiiafa Drury 



A drab colored cater|)illar about I'j inches long, and with a large, orange, dorsal 

 spot exposed at the juncture of the first and second abdominal segments when the body 

 bends, feeds on maple, oak, willow and rose. 



The caterpillar of this widel\- distrilnited s[)ecies is seldom a])imdant 

 enough to cause much injury. The lar\a is about I'j inches long, drab 

 colored, with indistinct markings exce|.)t for the large, orange, dorsal spot 

 e.xijosed when the body is bent at tlie juncture 'of the tu'st and second 

 abtlominal segments. On the eighth al)dominal segment there is a pair of 

 small, brown-tipped tubercles. The head is cpiite flat, sloping and irregu- 

 laily marked witli brown. The caterjiillar when walking loops much as 

 does a measLU'ing worm and i.lis[3lays a marked ltMulcnc\' to remain cpiiet 

 and rely on its protective color to escajx- injury. The parent insect is an 

 ol)scurely brown colored moth having a wing spread of about 2 inches. 

 Both the fore and hind wings are rather prettily ornamented with wavy 

 dark and light l)roun bands or lines interspersed here ami there with 

 indistinct grayish markings. 



The eggs of this insect are deposited the latter part of April and fidl 

 grown larvae are met with in early [luie, moths ap|jearing the latter part of 

 the month and in carl)- fuly. Larvae also occur in August and .Septemlier, 



