AKT. 12. MASKELL GENERA OF COCCIDAE MORRISON. 109 



of body above with a pair of large tubular ducts, margin of abdomen 

 with small gland spines and setae, apex of abdomen with large apical 

 setae, definitely developed lobes and gland spines and marginal setae. 



Genus ANOPLASPIS Leonardi. 



Plate 6, fig. 4. 



Genotype. — Mytilaspis metrosideri Maskell. 



References. — Fernald, Cat. Cocc. World, 1903, p. 311. — Ferris, Can. 

 Ent., vol. 52, 1920, pp. 63-4. 



The confusion created by Leonardi in regard to the type species 

 of this genus has been fully discussed by Ferris (1920), and is not 

 commented on here further than to say that 31. metrosideri stands as 

 the type. Curiously enough, a still greater degree of confusion was 

 found to exist when Maskell's specimens of this type species were 

 examined, as it was found that Maskell had confused two distinct 

 species, apparently cougeneric, and from the same host, and had sent 

 specimens not the type species to other coccidologists as specimens 

 of metrosideri. It has consequently been necessary to redescribe the 

 second species in the Maskell collection. The writers are indebted to 

 the note on the genus by Mr. Ferris for the information that My- 

 tilaspis metrosideri Maskell and not Aspidiotios hamhusarum Cock- 

 erell is the true type species. 



The Maskell collection contains two slides bearing the name 

 '" Mytilaspis metrosideri," one of " female and puparium, July, 1890," 

 and one of " adult female, 1891," and a small amount of unmounted 

 material under No. 17. The slide mounts are really an undescribed 

 species, and will be discussed later under the description of this new 

 species. From the material still unmounted, it has been possible to 

 obtain a mount of a female from the true type material, as determined 

 by a comparison with Maskell's original description and figures, and 

 it is this mount which is redescribed below. Material presented to 

 the Bureau of Entomology collection by Maskell proves to be the un- 

 described species. What Leonardi had before him when he first 

 established the genus it is impossible to state, but the species sent to 

 Cockerell and, as stated, to the Bureau of Entomology by Maskell 

 was incorrectly determined and favors the inference that Leonardi 

 also had incorrectly determined specimens before him. 



Adult female. — Scale white, elongate, pyriform, the anterior apex 

 slender, the exuviae apical, yellowish brown; body elongate, broad- 

 est behind the middle, somewhat pyriform, but Avith the pygidium 

 large, prominent and triangular, and the anterior body apex rounded ; 

 derm membranous, antennae placed in small pits in the head, tiny 

 tubercles with a single large seta ; eyespots represented by clear 



