THE CANADIAN ENTOMOLOGIST. 89 



about equal in length, not adherent to the ovisac. Dried ? very dark 

 brown, about noo //, long and 1200 broad. Ovisac 3 mm. long, fluted 

 above. 



Skin densely beset with small spines. Antennae and legs very dark 

 brown ; lighter and redder after boiling. Antennae 8-jointed, last joint 

 flat on one side, convex on the other, tipped with a spine. Joints 

 measuring in /x : (1.) 60, (2.) 60, (3.) 84, (4.) 45, (5.) 48, (6.) 60, (7.) 57, 

 (S.) 102. 



Hab. — Locality uncertain, but probably Ceres, Argentine Republic. 

 On some herbaceous plant (probably Compositae) with linear leaves. 

 Allied to O. nigrocincta from New Mexico. 



(2.) Asterolecanium viridulum, n. sp. — $ . Scale circular, 2 mm. 

 diameter, yellowish green, with hardly any fringe ; $ boiled in caustic 

 potash turns madder red ; margin with two rows of figure-of-eight glands, 

 those of either row 12-18 \x apart, and one row of simple glands, the latter 

 not different from the scattered glands of the skin. Mouth-parts large, 

 about 120 jj. diameter ; labium very short, twice as broad as long. 



Hab. — Tucuman, July 26, 1897, " on a kind of ironweed." It is 

 close to A. pustulans, and, like it, lives on the stems of the plant, produc- 

 ing cavities. It is a larger scale than pustulans, and has not the distinct 

 fringe of that insect. 



(3.) Akermes Bruneri, n. g., n. sp. — $ . Long. 5^2, lat. 6}4, alt. 5^ 

 mm.; shape and colour, Kermes-like ; globular, shiny, smooth, broader 

 than long, very pale ochreous, faintly marbled with a darker tint, and 

 sparsely dotted with raised black points, which are perforated in the 

 centre; two sulci extend upwards from the anal region in the form of a 

 V, and other sulci occur somewhat irregularly ; some individuals have a 

 dusky reticulation. Inferior aperture, long and narrow (long. 5, lat. 1 j4 

 mm.), broadly margined with piceous. 



9 . Boiled in caustic potash turns the liquid a dark yellowish 

 brown ; skin with a microscopical polygonal reticulation, after the manner 

 of Eulecanium ; no legs or antennae found; in the adult the anal plates 

 are wholly obscured, the anal region being occupied by a large, very thick, 

 dark red-brown chitinous mass, having a coarsely radiate structure ; in 

 half-grown specimens the usual two plates are easily seen. The skin 

 presents a number of large round dark chitinous areas, such as Signoret 

 figures for A. verrucosus. 



