Bernadottea honshuensis, Jaschhof & Jaschhof, 2018

Jaschhof, Mathias & Jaschhof, Catrin, 2018, A needle in a haystack: the new genus Bernadottea (Diptera: Cecidomyiidae, Winnertziinae) with four new species in the Old World, Zootaxa 4379 (4), pp. 529-538 : 533

Bernadottea honshuensis sp. nov.

Fig. 3A–G

Diagnosis. The genitalic structures of male B. HOnsHuensis are less complex compared with the congeneric species. This pertains in particular to the gonocoxites, which lack processes ( Fig. 3D ), and to the tegmen, whose subtrapezoid shape is unadorned ( Fig. 3E ). The elongate, slightly bent gonostylus has two separate pectinate claws, of which the smaller sits on a short process dorsomedially ( Fig. 3B , ↓1).

Other characters. Body size 1.3 mm. Head. Eye bridge 2–3 ommatidia long dorsally. Flagellomeres 10; apical flagellomere long, composed of two bodies; neck of third flagellomere 0.6 times as long as node ( Fig. 3F ). Wing ( Fig. 3G ). R1 = 2.5 times Rs. Abdomen. Tergal setae situated mostly laterally; pleural membrane setose. Genitalia. Ninth tergite with broadly rounded, microtrichose lobes laterally, space between lobes smaller than their width ( Fig. 3C ). Gonocoxites: ventral portions extensively, darkly pigmented around emargination and along longitudinal axis, truncated rather pointed posteriorly, anterior third without setae; emargination deep, V-shaped; dorsal apodemes conspicuously long ( Fig. 3D ). Gonostylus tapered towards rounded, wedge-shaped apex ( Fig. 3A–B ). Apex of tegmen-apodeme complex membranous, reinforced by ear-shaped, weakly sclerotized lobes ( Fig. 3E , ↓2), a pair of small, sclerotized spikes situated farther proximally / dorsally (↓3). Both aedeagal bulge and hypoproct inconspicuous.

Etymology. The specific name refers to Honshu, the largest of Japan’s main islands, where the only specimen known of this species was collected.

Holotype. Male, Japan, Honshu, Aomori Prefecture, Towadako , Tsuta-onsen , old-growth deciduous forest predominated by Japanese beech, alt. 500–600 m, 25.vi.–28.vii.1999, Malaise trap, M. & C. Jaschhof (in KUEC).

Figures

FIGURE3. Malemorphology ofBernadottea honShuenSiS (holotype).A:Gonostylus,ventral. B: Gonostylus,dorsal.C:Ninth tergite, dorsal. D: Genitalia, ventral. E: Tegmen and ejaculatory apodeme, ventral. F: Third flagellomere, ventrolateral. G: Wing, dorsal.Scales for A–F, 0.05 mm, for G, 0.50 mm.