AMERICAN IIOMOPTERA. 397 



some of theui twice as large, their width being from 3-16th to 6-16ths 

 of an inch. Gall No. 8 were found to be very numerous on the same 

 trees as last year. 



June 2dth. — I confirmed the observations I made on the various galls 

 last year, and discovered two new species, described below under Nos. 

 11 and 12. Gall No. 6 were very numerous and much more abundant 

 than last year, sometimes a dozen was found on a single leaf, destroying 

 it and often much injuring the tender branches. The weather was en- 

 tirely too wet for the health of the inhabitants, and they were also 

 found to be greatly afflicted with parasites as well as disease, and com- 

 paratively few reached the perfect state, compared with the millions of 

 last year. P]ven the curculio larvae, so abundant in these galls, were 

 found to be much preyed upon by a species of chalcis-fly, and at this 

 date I found plenty of eggs in some of the latest developed galls. 



In the early part of the gall-season I observed many specimens of the 

 Thn'ps, that infest them, on the leaves and some in the act of forcing 

 an entrance into the galls. I also observed specimens of Aiifhonomits 

 eri/thropHx, Say, on the leaves seeking the galls, and even found one 

 with its abdomen inserted into the opening of a gall, evidently in the 

 act of ovipositing. Some pale amber colored eggs, half the size of those 

 of the plant-lice (evidently deposited by some intruder) were also ob- 

 served. 



Gall No. 11. — Very thick, depressed, slightly elevated above the leaf 

 conical below ; contained many larvas and j^ellow pupa, but at this date 

 (June 18th) too late to find the eggs. This gall is almost like No. 4 

 with the walls much thicker. 



Dactylosphaera coniferum, n. sp. 



Body brownish; abdomen, and in some specimens the mcsothorax, pale yel- 

 low; antennie three-jointed, the last joint very long and on a slender pedicel; 

 tarsi very long, with the twodigituli almost as long; claws two, as usual; wings 

 ample, carried flat in repose, neuration nearly nndefinable, stigma slightly 

 clouded. Length of body .025 ; to tip of wings .05 — .04 inch. 

 Many specimens observed. 



Gall No. 12. — Yellowish, pubescent, covered with spines, quite ir- 

 regular; opening beneath elongate, sinuate. This gall, from its being 

 spinose and irregular, is quite in contrast with all the others of the series. 



Dactylosphaera spinosum, n. sp. 



WiNGiii) IMAGO. — Head and thorax black or brownish; abdomen yellow; an- 

 tennae four-jointed, the third joint much shorter than fourth, tipped with a hairy 

 spine ; tarsi long; wings carried flat in repose. Length of body .03; to tip of 

 wing .06 inch. 



