6o NEW YORK STATE MUSEUM 



Head subglobose, shining black, the single ocellus on each side, 

 black. Antennae with the basal segment whitish transparent, the 

 four distal segments with a yellowish tinge. Labrum yellowish; 

 mandibles reddish basally, shining black apically; maxillary palpi, 

 labium and labial palpi whitish transparent. Body segments 6 annu- 

 late dorsally, the first thoracic segment with the anterior two or 

 three annulae mostly yellowish or yellowish orange; dorsum mostly 

 yellowish green. The subdorsal row of black spots is composed of 

 two on each segment, the anterior one extending over three annulae, 

 the posterior on two, the first being approximately subquadrate, the 

 second transverse and with a length nearly twice its width; the 

 lateral row composed of large, irregular, quadrate spots, one to 

 each segment and extending over four annulae. Anal plate with 

 submedian, quadrate, black areas anteriorly and a median, quadrate, 

 black area posteriorly, the remainder yellowish. Spiracles oval, 

 brownish black, the subspiracular and ventral area orange-yellow; 

 true legs pale yellowish, slightly fuscous apically; prolegs on 

 abdominal segments 2 to 8 and 10. 



The parent sawfly has been described by Norton^ as follows : 



Length, male, 0.32. Br. wings 0.52 inch. Length, female, 0.60. 

 Br. wings 1.12 inch. 



Female and male. Body long and stout; antennae longer than 

 base of thorax, stout, flattened, serrate, black, with the four apical 

 joints white; head as in E. varianus, with the sutures at 

 sides of ocelli widened below and inclosing the base of antennae; 

 nasus deeply incurved, rugose; labrum white, its edge rufous; 

 tegulae piceous or yellow ; scutel in middle white ; legs black ; all the 

 trochanters, the apical half of four anterior tibiae and their tarsi 

 and the posterior tarsi, except first joint, white (sometimes the first 

 joint also). Wings smoky hyaline, base o£ stigma white; second 

 recurrent nervure a little removed from intersection of second and 

 third submarginals. 



Blue Cornus sawfly (Harpiphorus versicolor 

 Norton). Numerous specimens of these sawfly larvae were re- 

 ceived from Dr L. F. Rinkle of Boonville, September i8th, accom- 

 panied by the statement that they had entirely stripped one bush of 

 Cornus alternifolium. This sawfly appears to be less 

 abundant than the preceding, having been recorded from Illinois and 

 New Jersey. The eggs, according to Dr Dyar, about three in 

 number, are laid side by side under the lower epidermis from above, 

 forming a short row nearly parallel to a side vein. The young larva 

 has a pale brown head and a curled, whitish body, the latter becom- 

 ing well covered with a white, mealy secretion in the third stage. 

 The following description of the full-grown larva was drafted from 

 living specimens. 



1 1867 Norton, Edward. Amer. Ent. Soc. Trans, i :23i. 



