AMERICAN nOMOPTERA. 391 



bers. No eggs were found.* The larva) were pale greenish-yellow. 



On June 25th the galls were all dry, black and deserted. 

 Dactylosphaera caryae-magnum, n. sp ? 



? Pemphigus can/cc-caulis, Fiteh, 1st N. Y. Rep. p. 155. 



WiXGEn IMAGO.— Head and thorax brownish or black ; abdomen pale lemon- 

 yellow; prothorax, sometimes the whole thorax, yellow; antennre and legs 

 dark gray; wings hyaline, iridescent, lying flat on the back in repose ; under 

 a high magnifying power the antenna; appear slightly rugose, hairless, 4-jointed. 

 the last joint terminated bytwominute spines; and the legs appear corrugated, 

 showing minute rings, and are sliglitly hairy; tarsi with one joint and two 

 claws; stigma dark and conspicuous. Length of body .06; to tip of wings .08 

 inch. 



Gall No. 7. — Small round galls, generally very numerous in the 

 leaves, and in some cases almost entirely covering them, a single leaf 

 sometimes containing upwards of 250 galls ; the average size larger 

 than those of No. 8, although often quite as small, the larger ones mea- 

 suring three-sixteenths of an inch in diameter. They were (June 25th) 

 quite hard and smooth, and present, especially above, a bright shining 

 appearance; They were quite thick and plump, the vertical diameter 

 Compared with the horizontal diameter being as 2 to 3, and were much 

 more plump and elevated above the leaf than those of No. 8. The por- 

 tions of the leaf b^'tween the gulls had in some cases turned crimson. 

 I found from three to twenty-five inhabitants in a gall; the round 

 opening beneath was so close as to be pretty safe against enemies, as I 

 found none in the galls opened thus far. Larvce and pupse whitish, 

 with red eyes; mother insect cinnamon color and smaller than the 

 pupa. 



On July 5th, I found winged images in all the galls, large and small, 

 that were opened, the smallest galls not much exceeding .05 inch in 

 diameter; when opened, the young insects eagerly ran out, and all 

 presented the same pale, translucent appearance, with minute dark spots 

 on the anterior part of the body, which is in contrast with the inhabi- 

 tants of gall No. 8. The winged imago was first observed on June 

 80th. 



Dactylosphsera minimum, n. sp. 



\Vingi:d imago. — Body, antennas and legs, pale yellowish-white; the head and 

 a band round the thorax, dusky ; wings on the back in repose, translucent, neu- 

 ration obsolete, the stigma scarcely perceptible. Length of body .025 — .03; to 

 end of wings .045 — .05 inch. 



These insects are much smaller, paler in color and less disposed to 



fly than any of the other species noticed in this paper. From a gall 



* The eggs were found in 18C9: see Note below, p. 396. 



