Caryomyia antennata Felt

Caryomyia antennata Felt 1909: 292.

Hosts: Carya ovata, laciniosa, glabra, tomentosa

Gall (Figs. 158-159): Occasional, on Eucarya hickories; on or closely adjacent to veins of lower leaf surface; 3-6 mm in height, spheroidal, usually tapered to conical apex, covered with moderate to thick, white to tan hair not quite obscuring gall surface; base with central hemispherical pedicel fitting into corresponding leaf depression, some short exfoliation of leaf surrounding connection; wall woody, uniformly thick, larval chamber narrowed at both ends, with longitudinal ridges. This gall could be mistaken for one of the less hairy C. holotricha or C. aggregata galls, but galls of those species have a basal excavation rather than the prominent hemispherical connection to the leaf of the present species. The larval chamber of this gall is unique in that it ex- tends into this connection.

Affinities. — The gall of this species is unique for the larval chamber extending into the conical basal connection with the leaf.

Biological notes. — First noticed as full-size, hard galls in eastern West Virginia in early July, all were inhabited by second instars. By early August galls contained either a second or third instar. Full-grown larvae fully fill the larval chamber.

Range: AR, CT, IL, GA, IN, KY, MD, MA, NH, NY, TN, WV

Caryomyia antennata n. sp.

was reared in the spring of 1909 from a yellowish green or brown, subglobular, thick-walled hickory leaf gall, 4 to 5 mm. in diameter.

Caryomyia antennata

Carya sp.
Globose leaf galls, smooth or nearly so
Thick-walled, yellowish green or brown, diameter 4 to 5 mm.

Gall globular, if apex pointed, gall greatly constricted at base, with or without hairs...
Gall covered with sparse to dense hairs...
Sparse hairs on gall not obscuring the gall surface...
Gall yellowish-green or brown, spherical, thick-walled, with short hairs...
Caryomyia antennata Felt