168 Journal New York Entomological Society. [Vol. 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 antennse 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 antennas oi 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 given 

 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 



