Johnsonomyia rubra Felt, 1908

Jaschhof, Mathias, 2016, A review of world Diallactiini (Diptera, Cecidomyiidae, Winnertziinae), with the description of six new genera and seventeen new species, Zootaxa 4127 (2), pp. 201-244 : 227

Johnsonomyia rubra Felt, 1908

Fig. 12A–C

Johnsonomyia rubra — Felt 1908: 417 (in key); Parnell 1971: 281, figs 13–15. Haplusia rubra —Gagné 1985: 518.

non Johnsonomyia rubra — Plakidas 2007: 85, figs 16–18.

The holotype, a male in rather poor condition, is the only specimen known of J. rubra . Fortunately, enough is preserved of it to facilitate the identification of the species once fresh specimens (preferably males) should be found. Both the gonostylus and the tegmen of J. rubra are somewhat peculiar: the gonostylus has a subglobular basal portion that is more densely setose dorsally than ventrally, and a slightly elongate, evenly tapered apical portion bearing a broad tooth; the small, subtriangular tegmen is sclerotized and has unusually large apodemes (Fig. C). The ejaculatory apodeme, which in the type specimen is detached from the rest of the genitalia and embedded in some distance from it, is a normal, narrow, sclerotized rod. The eye bridge is 3–4 ommatidia long dorsally; on the flagellomeres, the subbasal setae form a regular whorl that is not intermingled with translucent sensilla; Rs and the surrounding area are not darkened (as far as visible in the dry-mounted wings); and the tarsi (of which not much is preserved) appear somewhat brighter than other leg segments.

Material examined. Holotype male, with the data as specified by Parnell (1971).

Figures

FIGURE 12 A – C. Johnsonomyia rubra (holotype male). A: Wing. B: Fourth flagellomere, lateral. C: Genitalia, preserved parts, ventral. Scales for A, 1.0 mm, for B – C, 0.1 mm.