Aprionus lindgrenae, Jaschhof, Mathias & Jaschhof, Catrin, 2015

Jaschhof, Mathias & Jaschhof, Catrin, 2015, New species and new distribution records of Lestremiinae, Micromyinae and Porricondylinae (Diptera: Cecidomyiidae) in Sweden, Zootaxa 3973 (1), pp. 159-174 : 162-164

Aprionus lindgrenae sp. n.

( Fig. 2 B)

Remark. This new species has long been known to the senior author from specimens collected in Germany, none of which is in a condition adequate for description.

Diagnosis. Aprionus lindgrenae is another new species belonging to the smirnovi group. The spineless gonostyli are typically directed dorsally, with their apical portions tapered and densely covered with long microtrichia (↓). The tegmen is fingerless as is characteristic in the smirnovi group; its apical portion is slightly bent dorsally and sculpted with folds (↓). As an unusual feature in Aprionus , the subanal plate of A. lindgrenae bears 1–2 pairs of setae (↓).

Other male characters. Body size 1.2 mm. Head. Head capsule perfectly globular. Occiput unusually sparsely setose. Postfrons asetose. Eye bridge 3–4 ommatidia long. Postocular bristles 3–5, in 1 sparse row. Neck of fourth flagellomere clearly longer than node; node with 1 complete and 2 incomplete crenulate whorls of sensory hairs, 2 very thick hair-shaped translucent sensilla distally. Maxillary palpus varying in length, 3- segmented; first segment swollen, with hair-shaped translucent sensilla. Wing. Apical portion of R1 2–3 times as long as Rs. Legs. Claws thin, evenly, slightly curved, with 2–3 tiny teeth. Terminalia ( Fig. 2 B). Ninth tergite long, with concave, slightly reinforced anterior margin. Gonocoxa rounded ventroapically; posterior portion of gonocoxal apodeme unusually curved at base (↓). Tegmen widest at mid-length. Subanal plate weakly sclerotized, indistinctly bilobed.

Etymology. This species is named after the recently deceased Erika Lindgren, Vassmolösa, Småland. With Erika gone, all of us have lost a pleasant person and SMTP has lost a knowledgable, dedicated associate.

Types. Holotype. Male (CEC79), Sweden, Bohuslän, Stenungsund, Kolhättan, Hällsberget, broadleaf deciduous forest, 14 April–25 May 2004, Malaise trap, Swedish Malaise Trap Project (trap 31, collecting event 515) (in NHRS). Paratypes. 2 males (CEC80–81), same data as the holotype; male, Bohuslän, Tanum, Hamburgsund, Stora Snixholmen, coastal rock, 29 Aug.–13 Sep. 2003, Malaise trap, SMTP (trap 32, collecting event 519); 2 males (CEC83–84), Sweden, Småland, Nybro, Bäckebo, Grytsjön Nature Reserve, hay meadow at forest edge, 13–24 Aug. 2007, Malaise trap, SMTP (trap 1001, collecting event 1355).

Other specimens studied. Male (A7602), Germany, Schleswig-Holstein, Hauke-Haien-Koog 32 km NW Husum, coastal dike, 1971, yellow pan trap, H. Meyer; 2 males (A7603–7604), Mecklenburg-Vorpommern, Karbow 15 km SE Greifswald, broadleaf deciduous forest, 15 Aug. 1993, sweepnet and aspirator, M. Jaschhof; male (A7605), Thüringen, Leutra S Jena, beech forest, 27 June 1993, sweepnet, M. Jaschhof.

Figures

FIGURE 2. Male genitalia, ventral. A: Aprionus karlssonorum. B: Aprionus lindgrenae. Scale 0.05 mm.