Nemopalpus velteni Wagner, 2012

Wagner, Rüdiger & Stuckenberg, Brian R., 2012, New fossil and extant species of Nemopalpus Macquart (Diptera: Psychodidae: Bruchomyiinae), African Invertebrates 53 (1), pp. 355-355 : 357-358

Nemopalpus velteni Wagner , sp. n.

Figs 1–3

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Description:

Male.

Measurements: Overall length 2.1 mm. Wing length 2.2 mm.

Head ( Fig. 2 ): Typical of the genus, with circular eyes, no eye bridge. Mouthparts of male non-functional. Relative lengths of four clearly visible palpomeres: 20–15–25–25; overall length of palpus ~ 0.56 mm. Antenna with spherical scape and pedicel, and 14 HORQJDWH WXEXODU ÀDJHOORPHUHV FORWKHG LQ ORQJ VHWDH. 'XH WR GHQVH YHVWLWXUH WKH SUHVHQFH RI DVFRLGV RQ ÀDJHOORPHUHV FRXOG QRW EH GHWHFWHG. 5HODWLYH OHQJWKV RI DQWHQQRPHUHV: 8–8–26–21–22–22–20–17–16–16–15–14 –12–10–10–10; antennal length 1.65– 1.70mm. Measurements of palpus and antennal segments are approximate as articles are not arranged in a single plane.

Thorax. +DOWHUH DQG OHJV ODFNLQJ VSHFL¿F IHDWXUHV.:LQJV GLI¿FXOW WR UHFRQVWUXFW GXH to high degree of translucency, partly folded, with one wing tip missing. Wing ca 2.5× longer than wide; Sc ending free in wing area at ca 0.25 wing length; R 1 elongate; fork R 2+3 / R 4+5 positioned basally; forks R 2 + R 3 and R 4 + R 5 at ca basal third of wing; tip positioned between R 4 and R 5; fork M 1+2 (most distal of forks) positioned at ca middle of wing; M 3 arising basally from M 1+2 stem; short cross-vein positioned between M 1+2 and M 3 at short distance distally from that fork; CuA 1 arising near point where cross-vein joins M 3; CuA 2 moderately short, not reaching posterior wing margin; anal vein indistinguishable.

Abdomen: With 8 pregenital segments, plus terminalia ( Figs 1, 3 ). Terminalia inverted, segmentation forming torsion unclear. Terminalia relatively simple, gonocoxite pipeshaped, virtually straight, shorter than slightly bent gonostylus.Tergum 9 sub-rectangular, ZLWK ÀHVK\, VHWRVH FHUFL; WHUJXP ƗƟ FRQLFDO. $HGHDJXV HORQJDWH WKLQ, WXEH‒VKDSHG.

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Germany). Notes: Nemopalpus velteni sp. n. represents the oldest known fossil Bruchomyiinae and is distinguished by its overall smaller size and in the shape of the terminalia. The structure of the terminalia is much simpler than the geologically younger Baltic amber species N. inexpectatus sp. n., described below. The specimen record greatly increases the known distribution of fossil Bruchomyiinae .

Figures

Figs 1–4. New fossil species of Nemopalpus: (1–3) N. velteni Wagner, sp. n., male: (1) habitus in amber; (2) head with mouthparts and basal antennomeres; (3) terminalia, dorsal view; (4) N. inexpectatus:DJQHU, VS. Q., PDOH WHUPLQDOLD, ODWHUDO YLHZ. 6RXUFHV RI ¿JXUHV:)LJV Ɨ± (5:);)LJ. 4 (%6 ZLWK additions by RW). Scale bars: Fig. 1 = 0.5 mm; Figs 2, 3 = 0.1 mm; Fig. 4 = scale unknown.