Loboplusia Jaschhof

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 : 231

Genus Loboplusia Jaschhof gen. nov.

Type species, zurqui sp. nov., here designated.

This new genus is introduced to absorb an unusual diallactiine from Costa Rica, which has the Haplusia type of wing venation ( Fig. 15D ), but is otherwise completely different from other Diallactiini , including Haplusia .

Diagnosis. Loboplusia is the only genus of Winnertziinae, including Diallactiini , whose scutum has a bright membranous window anterior of the scutellum (= prescutellar window, ↓, Fig. 15C ). Setae on the legs, especially the tarsi, are fringed ( Fig. 15E ), a condition I have not noticed in any other mycophagous cecidomyiids. Male genitalia are remarkable for the gonostylus consisting of two lobes (↓, Fig. 15A ), and for the gonocoxae whose ventrobasal bridge is extremely short (↓, Fig. 15A ). The ovipositor of Loboplusia is more compact ( Fig. 16A ) than that of any other diallactiine I have seen.

Etymology. The generic name is composed of Lobo -, from the Latin word lobus for lobe, with reference to the bilobed gonostyli, and the ending - plusia, from Haplusia , a genus with which Loboplusia shares similar venation. Gender of the name is feminine.

Figures

FIGURE 15 A – E. Loboplusia zurqui, male. A: Genitalia, ventral (holotype). B: Fourth flagellomere, lateral (holotype). C: Scutum, showing prescutellar window, dorsal (paratype). D: Wing (holotype). E: Apex of third tarsomere of midleg with fringed setae, lateral (paratype). Scales for A – B, E, 0.05 mm, for C, 0.1 mm, for D, 1.0 mm.

FIGURE 16 A – D. Loboplusia zurqui. A: Outline of ovipositor, lateral (paratype). B: Outline of female head, lateral (paratype). C: Female fourth flagellomere, lateral (paratype). D: Outline of male head, lateral (paratype). Scales for A – B, D, 0.1 mm, for C, 0.05 mm. Bc = basicercus, dc = disticercus, gen set = (area of) genal setae, gx = gonocoxa, sg = segment, lbl = labella.