Vol. XXVli] ENTOMOLOGICAL NEWS. 445 Two new Aphids, Capitophorus shepherdiae and Siphocoryne aquatica (Hem., Horn.)* By C. P. GILLETTE and L. C. BRAGG, Fort Collins, Colorado. (Plates XXIV, XXV.) Capitophorus shepherdiae, n. sp., Plate XXIV. In the Journal of Economic Entomology, 1915, page 379, at-tention was called to an aphid that had been found associated with Rhopalosiphnm hippophaes and Myxus braggii on El-aeagmts and Hippophaes as over-winter hosts, which so re-sembled either of these species in general appearance as to be easily mistaken for them. This species has since been iso-lated, and its development followed through the year, proving it to be a different species and one that seems to be undescribed. This species may have an alternate summer host plant, but we have not been able to find one and the lice remained on Shep-herdia all summer in 1915. This species is readily separated from any other we know by the combination of three characters, as follows : spur of antenna less than one-half as long as the cornicle in the ap-terous form, cornicle clavate, and dorsum of abdomen con-spicuously decorated with several rows of short, stout, capi-tate hairs. Descriptions of the different forms of this species follow. All measurements are in millimeters. Fnndatrix. Color pale green, or yellowish green; dorsal surface set with numerous short, stout capitate hairs on small, cone-shaped tubercles, there being one marginal and three lateral rows on either side of the median line of the abdomen and metathorax ; antennse barely reaching to the abdomen, set on short tubercules, 5-jointed. first joint with rather prominent swelling on the inner side, giving it the appearance of being bent at a right angle; joint III as long as IV and V together; relative lengths of joints beyond the second varying little from the following proportions: 16: 8: 6: 7 (spur); total length, .50 to .60 ; primary sensoria only ; vertex flat, but set with tubercles that bear capitate hairs; capitate hairs on antennal tubercles and joints I and II of the antennae; cornicles rather long, (.40), slender towards the base, clavate distally, due to a thickening on the inner margin, and slightly curved outward near the distal end; cauda but little longer than its width at base, and somewhat blunt at the tip; legs rather short
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