PROC. ENT. SOC. WASH., VOL. 21, NO. 4, APR., 1919 7< 



The wax in the immature specimens of C. bninen which are in 

 this collection is light olive-green in color, while the white secretion 

 mentioned by Cockerell is very conspicuous. There are three 

 lots of the material, one on Leguminosae from Bomplana, 

 Misiones, Argentina under collection number o2a, one from 

 Misiones, Argentina on Acacia, June 17, 1909, and the third from 

 Misiones, Argentina on Acacia riparia, May, 1909, both of the 

 latter without collection numbers. 



Ceroplastes grandis Hempel. 



The material of this species in this collection has been com- 

 pared with cotype specimens from Mr. Hempel. The size of the 

 dried cotype specimens is somewhat smaller than is indicated by 

 Hempel in his original description (Riv. Mus. Paulista, vol. IV, 

 1900, p. 455), while the color is a uniform light buff or pale clay- 

 yellow, with two narrow lateral streaks of white secretion on 

 each side. All of the Jorgensen material is somewhat smaller 

 than this cotype material, not much more than S mm. in length 

 in any case, but it has not been possible to find anything else that 

 would differentiate these lots of specimens from the cotype (.". 

 grandis of Hempel, all the structural characters apparently being 

 the same, if allowance be made for only a limited amount of 

 variation. 



The material examined is as follows: On Cephoreseyhon 

 barbinervis, Buenos Aires, Argentina, May, 1911, collection 

 number 10; on Scutia buscifolia, Buenos Aires, Feb. 191 1, collec- 

 tion number 11; on Compositae and on Baccharis salicifolia, 

 Bomplana, Misiones, Argentina, October, 1910, collection number 

 for both hosts 76a ; on Vitex montividiensis, Bomplana, Misiones, 

 Argentina, Oct. 1910, collection number '.)'2'2d; on Actimostema 

 lanceolata, Bomplana, Misiones, Argentina, Oct. (1910?), collec- 

 tion number 395a; on Ilex Paraguay ensis, Bomplana, Misiones, 

 Argentina, Oct. 1910, collection number JSSOa; on unstated host, 

 May, 1911, Buenos Aires, Argentina, without collection number. 



It is of course impossible to make a definite statement without 

 having type material to examine, but there seems to be nothing 

 but the question of size to distinguish Cockerell's Ceroplastes 

 bergi (Com. Mus. Nac. Buenos Aires no. S, 1901, p. 2SS) from ( '. 

 grandis Hempel. The question of the difference in the number 

 of antennal segments is deliberately ignored in making this 

 suggestion, especially since Prof. Cockerell mentions that one 

 of the joints in the antennae is indistinct. In view of the fact 

 that the final color of the dried cotype material, received from 

 Hempel, of C. grandis is buff or clay-yellow, quite different from 

 the color of the fresh and probably living specimens as noted by 

 Hempel in his original description, there is evidently a gradual but 



