Bernadottea selangorensis, 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 : 536-537

Bernadottea selangorensis sp. nov.

Fig. 5A–E

Diagnosis. With a body size of less than a millimeter, B. selangOrensis is the smallest species of BernadOttea known. Even so, the genitalic structures are strongly and uniquely modified to the same extent as in the larger species, B. natalensis and B. paHangensis . The gonostylus, which is longer than in any other BernadOttea , has a narrow, asetose base and a broader, setose portion apically; of the two separate pectinate claws, the smaller resembles the pectoral fin of a fish ( Fig. 5A , ↓1). Of the gonocoxites, the ventral emargination is small, roughly Ushaped and provided with a rounded, sclerotized protuberance at the base, and the dorsomedial portions are provided with three processes, of which both the inner and outer processes are glabrous and bent, and the midprocess is straight with two large setae apically ( Fig. 5C , ↓2). The tegmen, whose complicated three-dimensional structure is hard to grasp, has a pair of ventrally directed flaps subapically, whose surface is cluttered with lines of small, black hooks ( Fig. 5E , ↓3).

Other characters. Body size 0.8 mm. Head. Eye bridge 1–2 ommatidia long dorsally. Flagellomeres 10; apical flagellomere long, composed of two bodies; neck of fourth flagellomere 0.7 times as long as node ( Fig. 5D ). Wing. R1 = 4 times Rs. Abdomen. All of tergites and pleural membrane asetose. Genitalia. Posterior edge of ninth tergite slightly concave medially ( Fig. 5B ). Gonocoxites broadest at halflength, without dark pigmentation ventrally, pointed ventroposteriorly; dorsal apodemes smaller and closer together than in other BernadOttea ( Fig. 5C ). Aedeagal bulge inconspicuous. Hypoproct pointed posteriorly.

Etymology. The specific name refers to Selangor, the federal state of Malaysia in which the holotype of this species was collected.

Holotype. Male, Malaysia, Malay Peninsula, Selangor, Ulu Gombak , University of Malaya Field Studies Centre , alt. 120 m, evergreen tropical broadleaf forest, 24.ii.–14.iii.1997, Malaise trap, H. Hippa, M. Jaschhof & B. Viklund (in NHRS).

Figures

FIGURE 5. Male morphology of Bernadottea SelangorenSiS (holotype). A: Gonostylus, dorsal. B: Ninth tergite, dorsal. C: Genitalia, ventral.D: Fourth flagellomere, lateral.E: Tegmen and ejaculatory apodeme, ventral.Scales 0.05 mm.