Trigonaspis? innocens, n. comb., Incertae sedis

Biorhiza innocens Kinsey

[The galls of the two Mexican species considered "incertae sedies" (T innocens and T nitellina) produce identical galls to those of Sphaeroteras.]

Biorhiza innocens, n. sp.
Agamic form

Gall. — Similar to that of B, eburnea (Bassett). Individual galls rounded but much distorted, flattened on bottom and irregularly compressed, especially on sides coming in contact with other galls; surface fairly smooth, not wrinkled; singly or in clusters, on leaf blades, petioles, or stems.

Host. — Quercus Pringlei (types), Q. cordifolia, which are, respectively, scrub and alpine dwarf white oaks.

Range, — Tamaulipas: Miquihuana, 25 NW, 7500' (Q. Pringlei and Q, cordifolia),

Life History. — Adults: November 27, December 6, 14. January 3, 8, 9, 20, 24, 31. Most of the emergence early in January.

This variable-wing, Mexican insect, innocens, is very similar to Bassett's eburnea, which was described from Utah. From nitellina, the other Mexican species, innocens is best distinguished by its greater distortion from the fundamentally spherical form in the galls.