Aprionus sleipniri,

Jaschhof, Mathias & Jaschhof, Catrin, 2017, New species of Aprionus (Diptera, Cecidomyiidae, Micromyinae) from Sweden and other parts of the Palearctic region, European Journal of Taxonomy 378, pp. 1-38: 20-21

publication ID

https://doi.org/10.5852/ejt.2017.378

publication LSID

lsid:zoobank.org:pub:81628632-5B35-49E5-AB7A-B8B50B2FB06B

persistent identifier

http://treatment.plazi.org/id/03CF87D4-097D-0440-FDEB-78DDFBA7F955

treatment provided by

Plazi

scientific name

Aprionus sleipniri
status

sp. nov.

Aprionus sleipniri  sp. nov.

urn:lsid:zoobank.org:act:858990F3-8AB7-4B04-9CC7-368F916028F7

Fig. 11View Fig

Diagnosis

Aprionus sleipniri  sp. nov. is distinguished from all other Aprionus  , including the styloideus  group, by the tegmen whose narrowly rounded apex is strongly sclerotized (↓, Fig. 11AView Fig). In lateral view it is obvious that this sclerotized cap transitions smoothly into the membranous portion of the aedeagus ventrally of the tegmen. The 2–4 pairs of short tegminal fingers are directed posteriorly rather than laterally, so intersect only slightly or not at all (↓). The gonostylar tooth (↓), which is shaped like a fingernail, is much smaller than that found in the other species of the styloideus  group. As an unusual condition in Aprionus  , the ventral gonocoxal bridge is membranous, not made of a thin, sclerotized bar.

Etymology

Sleipnir is Odin’s eight-legged horse.

Material examined

Holotype

SWEDEN: ♂, Öland, Mörbylånga, Västerstad elm-forest Nature Reserve, 56.42° N, 16.42° E, mature elm forest, sweepnet and aspirator, M. and C. Jaschhof leg., 9 Jun. 2014 ( NHRS, no. CEC169).

GoogleMaps 

Paratypes

SWEDEN: 5 ♂♂, same data as for the holotype ( NHRS, nos CEC 170– CEC 174).

Other material studied

SWEDEN: 1 ♂, Öland, Mörbylånga, Skogsby forest NR, mixed broadleaf forest, MT, MCJ leg., 13 May–9 Jun. 2015 ( DEI, no. CEC 372); 1 ♂, Öland, Stora Dalby forest NR, 56.47° N, 16.45° E, mixed broadleaf forest, MT, MCJ leg., 5 May.–7 Jun. 2015 ( DEI, no. CEC 373).

Other characters

Body size 1.1–1.2 mm.

HEAD. Postfrons setose. Eye bridge 2–3 ommatidia long dorsally. A dense row of 8–9 postocular bristles. Neck of fourth flagellomere shorter than node, 3–4 thick translucent sensilla, either simply hair-shaped or two- to three-branched ( Fig. 11BView Fig). Palpus 3-segmented, length of segments varying.

WING. ApicR 1 2.0–2.5 times as long as Rs.

LEGS. Claws slightly bent, 2 fine teeth. Empodia rudimentary.

TERMINALIA ( Fig. 11AView Fig). Ninth tergite short, subrectangular, anterior margin straight, fully sclerotized. Dorsal gonocoxal bridge typically subtriangular, extends beyond ventroanterior gonocoxal edge. Gonostylus elongate, convex on basal half portion, basolateral apophysis poorly developed. Tegmen as long as gonocoxites, evenly tapered towards apex. Anterior corners of subanal plate apparent as poorly defined, weakly sclerotized areas with dark centers.

Distribution and phenology

Sweden (Öland). Adults were collected in May and June in broadleaf forests.

NHRS

Swedish Museum of Natural History, Entomology Collections

MT

Mus. Tinro, Vladyvostok

MCJ

Missouri Southern State College

DEI

Senckenberg Deutsches Entomologisches Institut

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Cecidomyiidae

Genus

Aprionus