NOTES ON FOREST-TREE INSECTS. 



By A. S. Packard, Jr., M. D., Special agent of the Division. 



AFFECTING THE CEDAR. OR ARBOR VIT.E. 



EUP1THECIA MISBEULATA Grote. 



Although the moth is very common, occurring all over the Eastern 

 United States, flying about and entering our houses through the sum- 

 mer, the caterpillar is rarely met with, though it is liable to prove lo- 

 cally injurious to cedar hedges and ornamental trees. We have reared 

 the moth from caterpillars found on the low bush juniper (Juniper us 

 communis), and descriptions of the larva and chrysalis will be found in 

 Bulletin 7 of the U. S. Entomological Commission, p. 248. The follow- 

 ing descriptions were drawn up from a specimen living during the last 

 week of August, the chrysalis appearing September 30 on the cedar in 

 Maine, the moth appearing the following spring, early in May, in con- 

 finement: 



Larva. — Body slender, the sutures between the segments well marked and stained 

 with yellow. The head small, rounded, not hilohed, and not so wide as the body. 

 Uniformly -pale green, exactly concolorous with the leaves of the cedar, on which it 

 feeds. The lateral fleshy ridge of the body is marked with greenish-yellow, forming 

 a prominent, interrupted, greenish-yellow lateral line. Supra-anal plate very short? 

 smooth, obtuse at the apex, the edges marked with greenish-yellow. Anal legs thick 

 and short, not broad; no dorsal warts or tubercles, the body being smooth. Length 

 12 mm . 



Pupa. — Green, slender. Length 7-8 m,n . 



AFFECTING THE FIR, SPRUCE, AND HEMLOCK. 

 EUPlTHECIA LUTEATA Pack. 



This is a common caterpillar on evergreen trees, excepting the pine, 

 and is described in Bulletin 7, U. S. Entomological Commission, p. 237. 

 The caterpillar is rather flat, the surface granulated, the body reddish 

 and bearing a remarkable resemblance to a red, dead fir leaf. It turns 

 to a chrysalis late in August and early in September in Maine, and the 

 moth appears the following May and June. 



The moth differs from Eiqrithecia miserulata in the much longer, more 

 pointed fore wings. The palpi are also larger, acute, and black. It 

 has four regularly-curved, parallel black lines on both wings; it is also 

 characterized by the broad, clear, flesh-yellow or luteous band situated 

 between the discal dot and the extra-discal line. Expanse of wings 

 22 mm . 



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