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



is only a single mounted specimen, and some unmounted parts 

 of other specimens available for examination, so it must be left 

 until additional material is available for study. 



Ceroplastes sp. Under collection number 17 there are a 

 few specimens of a Ceroplastes obtained from Veronica elliptica 

 at Buenos Aires, Argentina, May, 1911, but the number is too 

 few and their condition too poor to make a specific determination 

 possible. 



Ceroplastes sp. Under collection number 3 there is a specimen 

 or two of a species of this genus, possibly the same as the pre- 

 ceding, obtained from Lithraea molleoides at Buenos Aires, 

 Argentina, May, 1911. As in the preceding lot, the material is 

 insufficient for specific determination. 



Akermes verrucosus (Sign.)(?). From Bomplana, Misiones, 

 Argentina on Solanaceae, November, 1910, under collection 

 number 92a, there is a single specimen of a large convex, almost 

 spherical, lecanine scale insect, which seems to agree rather well 

 with Signoret's description of Lecanium verrucosum (Ann. Soc. 

 Ent. Fr., (5) III, 1873, p. 442) which was described from Monte- 

 vidio, Uruguay, and has been placed by Cockerell in his genus 

 Akermes. The writer is inclined to question the correctness of 

 this reference of Signoret's species to Akermes, since it has well 

 developed legs and antenne, while the type of the genus, A. 

 bruneri Ckll. has both of these so very greatly reduced that they 

 are almost wanting. 



Genus Ceroplastes Gray. 



Ceroplastes bruneri Ckll. 



The specimens of this species from the Jorgensen collection are 

 all immature, but a comparison with the type material, kindly 

 deposited in the U. S. National Collection of Coccidae by Prof. 

 Cockerell leaves no question as to the identity of the material. 

 Prof. Cockerell (Can. Ent., XLII, 1910, p. 76) establishes this 

 species as the type of a new subgenus, Ceroplastidia. This sub- 

 genus, so far as the writer can determine, is synonymous with 

 Gascardia Targ., a genus described by Targionia Tozzetti (Bull. 

 Soc. Ent. Ital., XXVI, 1894, p. 456, "and placed by him in the) 

 subfamily Tachardiinae, but redescribed by Newstead (Quart. 

 Jour. Inst. Comm. Res. Liverpool Univ., vol. Ill, 1908, p. 3 et. 

 seq.) and properly placed close to and doubtfully distinct from 

 the genus Ceroplastes. Neither genus appears to be founded on 

 any definite morphological characters that would distinctly 

 separate it from Ceroplastes, and Newstead's opinion regarding the 

 very close relationship with the latter genus appears to be fully 

 justified by an examination of Prof. Cockerell's type of Cero- 

 plastidia. 



