48 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol. GO. 



obvious that it is not closely related to the Pseudococcus group of 

 genera as has been believed by authors subsequent to Maskell. 



Genus ERIUM Cockerell. 



Genotype. — Dactylopius glohosus Maskell. 



References. — Fernald, Cat. Cocc. World, 1903, p. 112. — Morrison, 

 Proc. Ent. Soc. Wash., vol. 21, 1919, p. 74. 



The confusion which already exists in regard to this genus has 

 been still further complicated by the discovery, as will be evident 

 from the following description, that a serious error has been made 

 as to the species that is really the type of the genus. From the con- 

 text of Maskell's comments on the species D. gJohosus following his 

 description, it is evident that he regarded the material received from 

 Crawford some years before the publication of the description as 

 the true type specimens of the species. A careful examination of 

 Maskell's slides and material shows plainly that the specimens he 

 mentions as having come from Mr, French are a different species from 

 those received from Crawford, and that it is specimens of Mr. 

 French's species which Maskell has sent out to other coccidologists, 

 thus giving to other entomologists an incorrect conception of the 

 genus. The group of species placed under Erium in the Fernald 

 Catalogue will therefore, if they represent a valid generic group, 

 require a new genus name, while E. glohosmn of authore (Maskell 

 in part only) will need a new specific name. The vrriters therefore 

 propose the name A^nonostherium, new genus, for the group of 

 species formerly included under Erium^ propose the specific name 

 co7ifusu?7i, new species, for the species r/Johosum of authors and 

 Maskell in part, and designat-e the common American species Uch- 

 tensioides (Cockerell) as the type of this new genus, but for the 

 present do not attempt to indicate definitely the disposition of all 

 the species formerly placed under Erium. 



This species is represented in the Maskell collection by a single 

 slide labeled " adult female, Australia, 1886." There is also another, 

 labeled '* adult female, 1891," representing Amonostherium confusum. 

 There is also some unmounted material, divided into three lots, under 

 No. 82, one of which represents true Enum glohosuvi., while the other 

 two are the previously unnamed species. The following descriptions 

 and figures have been taken from Maskell's true type material. 



Adult female. — Oval, stout, strongly convex, enclosed in a fluffy 

 white sac; antennae 7-segmented, rather stout and short, the ter- 

 minal segment longest; legs short and stout, otherwise normal, the 

 digitules knobbed, the claw pair stouter; every part of hind legs 

 except tarsus with numerous small clear pores, not dehnitely 

 grouped; mentum rather long triangular, distinctly 2-segmental; 



