REPORT OF THE STATE ENTOMOLOGIST I910 59. 



flies appear early in spring, while others do not issue till the latter 

 part of June. One parasite, Limneria lophyri Riley, has- 

 been reared from this sawfly. This species may occur upon 'both, 

 white and hard pines from midsummer till late fall. The parent 

 insects deposit their eggs in little slits in the leaves. They are 

 rather stout, 4-winged sawflies, the common name being givea 

 because of the sawlike appendage at the tip of the female ab- 

 domen. This sex has a wing spread of about two-thirds of an 

 inch, is honey-yellow, the head and thorax being a little darkei, 

 the latter and the abdomen being slightly marked with black. The- 

 nale has a wing spread of about one-half of an inch, and the body 

 s black, except the yellowish underside and the tip of the abdomen. 



Experience has shown that this species is most likely to injure- 

 ^oung pines, consequently it is well, where feasible, to watch for 

 he appearance of the pests in such plantings and if circumstances- 

 varrant, adopt repressive measures. Many larvae can be jarred" 

 rom small trees by vigorous shaking and their ascent prevented 

 ly an application to the trunk, of a sticky band such as tree tangle- 

 oot. There is no doubt but that thorough spraying with a poison,, 

 referably arsenate of lead (15 per cent arsenic oxide) would' 

 estroy these leaf feeders. It might pay to resort to such practices 

 ^here only a few trees are badly infested, largely for the purpose 

 f reducing the likelihood of more extended subsequent injury. 



Spotted Cornus sawfly ( H a r p i p h o r u s t a r s a t u s 

 ay). This greenish yellow, black spotted sawfly was received 

 eptember last from Joseph H. Dodge of Rochester, through the 

 tate Department of Agriculture, accompanied by the statement that 

 le larvae were very abundant and destructive to Cornus mas- 

 u 1 a . This sawfly appears to be a rather common form and widel}^ 

 stributed, since it has been recorded from Canada, Massachusetts, 

 Dnnecticut, Indiana and West Virginia. The eggs, according to' 

 r Dyar, are deposited under the lower epidermis through a slit cut 

 om above. They are close to the midrib in a long line, the cuts, 

 lited. One edge of the swelling is on the midrib or large vein, 

 e other parallel to it but wavy and composed of numerous saw 

 ts. The recently hatched larva is nearly colorless, with a slightly 

 scous head. The latter becomes darker as development pro- 

 ssses and eventually black, wdiile the body remains whitish or 

 le olivaceous, the black marks appearing in the sixth stage. The 

 lowing description was drafted from full-grown living larvae: 

 Larva. Full-grozun. Length 2.5 mm. General characters: head 

 Lck, body greenish yellow with subdorsal and sublateral rows of 



ck spots, venter orange- vellow. 



