﻿OP THE STATE ENTOMOLOGIST. 99 



however, with great diflBculty in confiDement; and though I have had 

 several hundreds under my care at one and the same time, in tubes 

 and in jars, with and without moist earth, yet 1 have succeeded in 

 getting but two females to hatch; though many of them if mounted 

 in balsam before life departs and they become discolored, will show 

 the characters of the enclosed animal with tolerable distinctness. 

 Balbiani found the same difficulty in hatching these sexual eggs from 

 the winged females ; but had better luck with those from the wingless 

 underground individuals, which seemed to hatch more readily. 



These sexual individuals are, as already stated, entirely destitute 

 of mouth-parts, and have simply, in their stead, a little tubercle where 

 the proboscis of the other individuals originates. The male is readily 

 19-] distinguished by the penis which extends from 



the tip of the abdomen, and is bulbous at base, 

 but terminates in a sharp point. The female is 

 distinguished by the pedunculated third joint of 

 her antennae, but except in these striking charac- 

 ters, they bear a close resemblance to the ordi- 

 ^ nary larva. 1 introduce in illustration of the male, 

 a dorsal figure of the male of a larger species 

 (probably carycecaulis Fitch*) the mounted spe- 

 cimen of which is a better subject to figure 

 malephylloxeka: the dot than those from vastatrix; and in connection 

 witMacircie showing natural ^.^j^ the Ventral view given further on of the 

 male of the American Oak Phylloxera, will convey a sufficiently ex- 

 act impression. 



INJURY DONE DURING THE YEAR IN AMERICA. 



The Phylloxera was less numerous and did less injury in 1874 than 

 in any of the three previous years. This was owing principally to the 

 fact that there was a good deal of wet weather in the Spring, though 

 it was unusually dry in most parts of the State later in the season. 

 The grape crop was unusually good, the character of the wine also supe- 

 rior. Yet, notwithstanding the excellence of the average crop of the 



* This was ohtainecl from some large winged females, beaten, the latter part of September, fromsomo 

 small Post Oaks. From a comparison with the described N. A. species, I take it to be the PA. carycecaulis 

 Fitch, which forms galls on the petiole of the leaf of the Carya glabra (see Synopsis, further on;. The 

 winged 5 is more than twice as large as vastatrix, with much blacker mesothoracic band, duskier 

 shades on the head, and duskier wings and members. The male is quite pale in color, 0.02 inch long, 

 with the claws and digituli rather small ; but agreeing very closely in structure with the male of Rileyi, 

 except in the conspicuousness of the nerves which .show through the transparent skin in the manner in- 

 dicated in the figure, 



