June, i8p8 ] DyAR : NEW SPECIES AND LaRV/E OF SAWFLIES. 
125 
more uniformly gray. The black points vary in distinctness, sometimes 
obsolete. Occasionally the larva is very pale, an albino, with dull red 
head and sordid white body marked with an olivaceous blackish lateral 
band. 
No ultimate stage; cocoon dark brown, formed in the earth. Single 
brooded. 
Larva referred to as “F ” Can. Ent. XXVII, 339 . 
Hemichroa albidovariata Norton. 
? described by Norton (Trans. Am. Ent. Soc. IV, 81). 
$ closely similar to 9 with the three basal segments of abdomen 
above yellowish white, the basal plates black. Two 9 9, one $ from 
Texas (Belfrage), coll. U. S. Nat. Mus., one 9 from larva at Bellport, 
Long Island, N. Y. The larvae live on the black oak (Q. coccinea) in 
May, eating the young leaves, resting on the edge, the abdomen slightly 
curled. 
Stage V .—Head pale red-brown, eye narrowly black, mouth dark 
brown; width 1.8 mm. (9). Feet on joints 6-12, 13, moderate; seg¬ 
ments regularly and distinctly 6-annulate, spiracle on second annulet. 
Color translucent fleshy brown, a lateral row of irregular black spots on 
annulets 1 (small), 2-3 (large), 4-5 (rather small), the large one 
broken on some segments; all absent on joint 13; anal plate immacu¬ 
late. Some small black marks around spiracle; a distinct black patch 
on the anterior subventral fold and a smaller patch on the posterior one. 
Feet and venter unspotted, but a black mark at the base of thoracic 
feet. Dorsal vessel and paired dots on annulet 1 dusky translucent. 
No ultimate stage; cocoon in the ground ; single brooded. 
Hemichroa phytophagica, sp. nov. 
9 extremely similar to H. albidovariata but the pale lines on an¬ 
terior lobe of thorax are short and obscure and the basal plates of ab¬ 
domen are black. 
One 9 bred from larva from Bronx Park, New York, and two 9 9 in 
coll. U. S. Nat. Mus. marked “saw fly on white oak” from Miss Murt- 
feldt, No. 241 M., Dept. Agriculture, No. 3168. 
Found on the young leaves of the white oak in May. 
In Bronx Park these larvae were mixed with those of //. fraternalis , 
and showed somewhat the same habits by eating away the leaf from the 
midrib; but they do not use this as a perch and are true edge eaters. 
Stage 7 .—Head rounded shining black-brown ; width .4 mm. 
