168 Journal New York Entomological Society. [Voi. vi, 
wax of first and second larval stages is pure white. The characters 
agree perfectly with Riley and Howard’s description. A specimen of 
the second stage of 9 larva was also obtained from within the ovisac, 
and shows two long hairs, a little shorter than width of body, sticking 
straight out from sides of body, well removed from each other. These 
were doubtless broken off from the dried cast larval skins, from which 
the original description and drawings were made. The several hairs on 
last antennal joint of first larval stage are somewhat longer in some cases 
than in the figure. The broken stumps of the pair of cephalic hairs 
between bases of antennae appear in one specimen, but do not show in 
the others. [C. H. T. T.] 
Icerya rosae Riley and Howard. 
Seven 9 specimens, all apparently adult, taken on bark of trunk of 
a tree which may have been Prosopis sp., in plaza at market place. 
Tehuantepec City, Oaxaca, May 26, 1896 (Townsend). Div. Ent., No. 
7222. It is curious to note that the anatomical characters of the adult 
9 of rosce are the same as those of purchasi; the antennae of rosce have 
been stated by Riley and Howard to be the same as purchasi , while an 
examination of the present specimens shows them to agree perfectly in 
all the other anatomical characters with the description of purchasi g iven 
by Comstock. The validity of rosce stands on the absence of ovisac, 
absence of curled filaments of secretion on border of body, and absence 
of fine glassy filaments on body. Boiling in caustic soda gives first a 
pronounced rose-color, then a rose-brown. 
Icerya littoralis Ckll. 
One adult 9 on bark of tree which may have been Prosopis sp., in 
plaza at market, Tehuantepec City, Oaxaca, May 26, 1896 (Town¬ 
send). Div. Ent., No. 7222. The egg sac is short, and is distinctly 
yellow on circumference of basal half. There is no sign of the fine 
glassy filaments of the body in this species. The fluffy waxy secretion 
enveloping the eggs and newly-hatched young is whitish, but the inside 
of the wall of egg-sac shows conspicuously yellow. The wax of first 
stage of larva is apparently quite pure white. The last antennal joint of 
first larval stage, taken from ovisac of present specimen, and from sacs 
of littoralis typical form, shows a slight constriction in middle, thus ex¬ 
hibiting a tendency toward palmeri. The first larval stage of littoralis 
has the third antennal joint uniformly the same as 1, 2 and 4, the ap¬ 
proximate formula being 6 (1234) 5 ; while palmeri has the third joint 
uniformly longer than 1, 2 and 4, the formula being 63 (124) 5. The 
