Aprionus forshagei, 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: 160-161

publication ID

http://dx.doi.org/10.11646/zootaxa.3973.1.6

publication LSID

lsid:zoobank.org:pub:6A9BC878-BFEF-440A-A533-389654DE5AB4

persistent identifier

http://treatment.plazi.org/id/9660FC12-FFCC-2D70-FF4F-D8F721D308A9

treatment provided by

Plazi

scientific name

Aprionus forshagei
status

sp. n.

Aprionus forshagei  sp. n.

( Fig. 1View FIGURE 1 A)

Diagnosis. This species belongs to the Aprionus flavidus (Winnertz)  group of species, whose members are characterized by the gonostylus subdivided in two lobe-like portions, the ventrobasal portion is thick and convex, the dorsoapical portion is more narrow and elongate. Between both portions are 1–2 spines of varying size and shape ( Jaschhof & Jaschhof 2009). In A. forshagei  , the gonostylus has 1 straight, blunt-ended spine (↓) situated between two lobe-like portions subequal in size; the dorsoapical portion bears 1 slightly bent apical spine and 2–3 subapical bristles. The tegmen is long, narrow and tapered apically; the apex is covered with tiny spikes (↓); tegmen fingers, arranged in 1–2 pairs, are small and inconspicuous. The subanal plate is largely membranous and can be perceived only because its posterior margin and anterolateral edges are slightly sclerotized (darkened).

Aprionus delectabilis Mamaev  ( Jaschhof & Jaschhof 2009: fig. 78) and A. hybridus Jaschhof ( Jaschhof & Jaschhof 2009  : fig. 81) have genital structures similar to A. forshagei  , but the gonostylus, tegmen and subanal plate are distinct in each of these three species.

Other male characters. Body size 1.1 mm. Head. Eye bridge 2–3 ommatidia long. Postocular bristles 6, in 1 sparse row. Neck of fourth flagellomere shorter than node; node with 1 complete and 3 incomplete crenulate whorls of sensory hairs, about 4 thick hair-shaped translucent sensilla distally. Maxillary palpus 3 -segmented; first segment with hair-shaped translucent sensilla; apical segment longest. Wing. Apical portion of R 1 twice as long as Rs. Legs. Claws thin, evenly slightly curved, without teeth. Terminalia ( Fig. 1View FIGURE 1 A). Ninth tergite subrectangular, with concave, reinforced anterior margin. Gonocoxa rounded posteriorly; dorsal gonocoxal bridge extending far anteriorly.

Etymology. This species is named after Mattias Forshage, Stockholm.

Holotype. Male (CEC 76), Sweden, Östergötland, Ödeshög, Omberg, Storpissan Nature Reserve, old-growth Norway spruce forest, 18 June – 20 July 2009, Malaise trap, M. & C. Jaschhof (in NHRS).

NHRS

Swedish Museum of Natural History, Entomology Collections

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Cecidomyiidae

Genus

Aprionus

Loc

Aprionus forshagei

Jaschhof, Mathias & Jaschhof, Catrin 2015
2015
Loc

A. hybridus

Jaschhof 2009
2009