117 
Lineellus is another potential pest, having injured clover and 
alfalfa in Europe, tho it is not common here as yet. In Urbana, it 
occurs occasionally in red clover fields, and the beetle eats the leaves 
of that plant. A female taken November 26, 1907, by Mr. R. D. 
Glasgow, a student at the University of Illinois, was kept alive on 
clover leaves for a long time, under daily observation, and laid 
eggs, eight being found November 27, and 10 on November 30. These 
are oval, pale translucent yellow when laid, becoming jet-black; sur- 
face minutely granulate ; length, 0.5 mm. ; breadth, 0.38 mm. Five of 
the eggs found November 27, and laid not before November 26, 
hatched December 16. The larva at hatching is white, stout, and 
footless, with a black head, and its length is 0.82 mm. The body is 
wrinkled to such an extent as to obscure the segmentation. The larva 
is like that of flavescens, 
and bends the head and 
thorax over in the same 
manner. These larvae 
fed readily on red clover, 
digging into the bases of 
roots or stems. 
To these few but new 
notes on the life history 
is added a sketch of the 
newly born larva of line- 
ellus (Fig. 32). 
Fig. 32. — Larva of Sitones lineellus at hatching. 
Greatly enlarged. 
Sitones Uavescens All. 
1887. Webster, F. M.— Rep. [U. S.] Comm. Agr., 1886, pp. 580- 
582. 
1890. Schwarz, E. A. — Proc. Ent. Soc. Washington, Vol. I., pp. 
248-250. 
1891. Osborn, H., and Gossard, H. A.— Bull. No. 14, Iowa Agr. 
Exper. Sta., pp. 177, 178. 
1896. Xambeu.- — Moeurs et Metam. d'Insectes, Mem. 5, pp. 130- 
133; Extr., Ann. Soc. Linn. Lyon, Vol. XLIIL, pp. 
152-155. 
Clover-root Mealy Bug 
Psendococcus trifolii Forbes 
(Coccus trifolii, Dactylopius trifolii) 
This root-feeding mealy bug must in future be counted among the 
insects that kill clover plants. Its capacity in this respect has been 
overlooked, few entomologists having paid any attention to this incon- 
spicuous subterranean species. 
The insect occurs near the crown of the plant, as a plump oval 
sluggish mealy bug, with more or less of a white . coating. It sucks 
the sap of the root by means of a minute beak. Legs and antennae 
