Diallactiini
Creators: name: Jaschhof, Mathias
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Cecidomyiidae

description: Extant Diallactiini, including new taxa
Key to genera (males)
1 Costa extends beyond R5. Flagellomeres 11....................................................... Sylvenomyia
- Costa merged with R5 (Fig. 10D). Flagellomeres 14, exceptionally 13........................................... 2
2 M1+2 present. R-m discrete............................................................................. 3
- M1+2 absent. R-m merged in btv (Fig. 10D)................................................................ 4
3 M4 absent. Flagellomeres with crenulate whorls of sensory hairs........................................ Diallactia
- M4 present. Flagellomeres without crenulate whorls (Fig. 21C).......................................... Wyattella
4 Gonostylus normal-sized, single-lobed and with normal-sized apical tooth (Fig. 4A)............................... 5
- Gonostylus variously modified (Figs 3A, 11A, 15A, 17A, 18A)................................................ 9
5 Gonocoxae with dorsomedial process (Fig. 20A)..................................................... Wahabia
- Gonocoxae without process............................................................................ 6
6 Legs bicolored, either banded or tarsi brighter than other segments. Palpus usually longer than head height. Mostly large spe- cies with body lengths> 2.5 mm ......................................................................... 7
- Legs unicolored. Palpi usually shorter than head height. Mostly small species with body lengths <2.5 mm .............. 8
7 Wing with dark spot on Rs and surrounding membrane (Fig. 10D), a similar spot often on CuA. Membrane often milky white (almost invisible in balsam-mounts). Legs usually conspicuously banded.................................. Haplusia
- Wing without spots, but Rs usually darkly tinted (Fig. 14D). Membrane brownish to grayish. Legs never banded................................................................................................... Johnsonomyia
8 Tegmen pointed apically..................................................................... Ferovisenda
- Tegmen blunt-ended, concave or rounded apically............................................... Gynapteromyia
9 Parameres separated from each other, forming a pair of excessively long sticks (Fig. 11B)................... Japoplusia
- Parameres fused to form a tegmen (Fig. 13A)............................................................. 10
10 Gonostylus single-lobed, either miniaturized or enlarged.................................................... 11
- Gonostylus bilobed, rather normal-sized................................................................. 12
11 Gonostylus tiny, embedded in large gonocoxal lobe (Fig. 18A)........................................ Mikrostyles
- Gonostylus large (including an excessively long curved tooth), inserted posterior to gonocoxa (Fig. 17A)...... Makrostyles
12 Ejaculatory apodeme very short, rod-like (Fig. 15A)................................................ Loboplusia
- Ejaculatory apodeme excessively large, strongly broadened apically (Fig. 3A).......................... Bruneiplusia
description: Published as part of Jaschhof, Mathias, 2016, A review of world Diallactiini (Diptera, Cecidomyiidae, Winnertziinae), with the description of six new genera and seventeen new species, pp. 201-244 in Zootaxa 4127 (2) on page 206, DOI: 10.11646/zootaxa.4127.2.1, http://zenodo.org/record/267022