Campylomyza abjecta Mamaev, 1998

Jaschhof, Mathias & Jaschhof, Catrin, 2017, Mycophagous gall midges (Diptera, Cecidomyiidae: Lestremiinae, Micromyinae, Winnertziinae, Porricondylinae): first records in Sweden and descriptions of closely related new species from elsewhere, Zootaxa 4226 (4), pp. 546-570 : 550

Campylomyza abjecta Mamaev, 1998

Fig. 2A ̄C

Mamaev (1998) described this species from a single male collected in the Russian Far East in 1961. His statement, Campylomyza abjecta would differ from other Campylomyza in the “tegmen having two dorsal teeth” is unhelpful, since a similar tegmen is found in all the 10 or so members of the Campylomyza flavipes Meigen, 1818 group, where the species in question belongs (see Jaschhof & Jaschhof 2009). We identified two males from Sweden as C. abjecta based on a pencil sketch of the genitalia of the holotype, which MJ studied in 2006. The gonostylus is characteristic: it is ovoid, flattened and covered with dense, stiff setae apicomedially ( Fig. 2A ). The dorsocentral processes of the tegmen in C. abjecta resemble those in C. borealis ( Jaschhof & Jaschhof 2009: fig. 31C) and C. mohrigi ( Jaschhof & Jaschhof 2009: fig. 34C), two species of the flavipes group with curved, tapered gonostyli. Our Swedish specimens are the first records of this species in the Western Palearctic.

Previous distribution. Russia (Far East). Occurrence in Sweden: Skåne, Uppland.

Specimens studied. SWEDEN: male (CEC199), Skåne, Tomelilla, Drakamöllan , grassy heath, 24–31 May 2005, Malaise trap, SMTP (trap 38, collecting event 1443); male (CEC200), Uppland, Håbo, Biskops Arnö, northern beach, elm grove , 7 Sep. 2003 – 1 June 2004, SMTP (trap 8, collecting event 394).

Figures

FIGURE 2 A – C. Campylomyza abjecta, male (specimen from Sweden). A: Genitalia, ventral. B: Fourth flagellomere, lateral. C: tegmen, ejaculatory apodeme indicated, dorsal. Scales for A – C, 0.05 mm.