Feron scutellum (Weld, 1930), comb. nov.

Gall (Fig. 328). A cup-shaped leaf spangle gall, up to 4.5 mm in diameter and 3.5 mm high, purple-brown with a whitish bloom, attached to under side of leaf. The edge of the cup is thin, not in-rolled. The larval cell is 2 mm long by 0.7 mm in diameter and lies transversely at the very base of the cup. The exit hole is into the bottom of cup.

Biology. The asexual generation is only known, which induces galls on Q. gambelii (section Quercus, subsection Dumosae) and Q. turbinella (section Quercus, subsection Leucomexicana). Galls mature in late autumn, and adults were cut out from galls in December-January (Weld 1930).

Distribution. USA: AZ (Weld 1930).

Andricus scutella

Quercus gambelii, subturbinella [turbinella]
Leaf galls
Detachable
Fig 176. Not black, edge not inrolled.

[Russo's photo and description of Andricus scutella do not entirely match those of Weld. NOTE: Russo acknowledges this in a draft Errata he has circulated, The draft Errata includes a new photo. See this entry for more information on the gall Russo lists as A scutella]

Andricus scutella, new species

Hosts: Quercus subturbinella [turbinella]

Gall. — A cup-shaped spangle up to 4.5 mm. in diameter and 3.5 mm. high, brown with a whitish bloom, attached to underside of leaf. The edge of the cup is thin, not in-rolled, often collapsed. The larval cell 2 mm. long by .7 mm. in diameter is placed transversely in very base of cup. The exit hole is into the bottom of cup. The gall resembles that of Trigonaspis cupella Weld on the same host, but lacks the in-rolled margin and dark color of that species and the adult is fully winged.

Range: AZ