Campylomyza angulata, Jaschhof, 2015

Jaschhof, Mathias, 2015, Morphological re-examination reveals that Campylomyza serrata JASCHHOF, 1998 is a complex of five cryptic species (Diptera: Cecidomyiidae, Micromyinae), Beiträge Zur Entomologie = Contributions to Entomology 65 (2), pp. 373-381 : 375-376

Campylomyza angulata spec. nov.

( Figs 1–4 )

Diagnostic description: Campylomyza angulata and C. appendiculata (described below) are the only species of the serrata group whose gonostyli have a distinct convexity or lobe dorsally. The lobe is most obvious in lateral view, but emerges also in a dorsal aspect, in which the edge of the lobe appears as a thick, dark line (←, Fig. 1 ). The lobe in C. angulata (←, Fig. 1 ) is smaller than that in C. appendiculata (←, Fig. 5 ). The tegmina of the two species are clearly different. In C. angulata , the tegmen is broadened towards the apex; it has no distinct shoulders (←); its apical margin is more or less clearly angulate (←); and the parameral apodemes are of moderate size ( Figs 2, 4 ). In C. appendiculata , the medial portion of the tegmen is parallel-sided; small shoulders are present; the apical margin is straight (except for the two points medially that are present in all the species treated here); and the parameral apodemes are longer than in any other species of the serrata group (←, Fig. 7 ). Other diagnostic characters of C. angulata are as follows. The ninth tergite is moderately wide to narrow ( Fig. 3 ). The ventral emargination of the gonocoxites is deep (i.e. the ventral bridge is short) and reinforced by a bare sclerotized rim basally; the medial bridges are not or only slightly bulged posteriorly and only slightly project dorsomedially; the dorsal bridge reaches far anteriorly; and there are large membranous areas close to the insertion points of the gonostyli (←, Fig. 3 ). The gonostylus is broadly rounded apically ( Fig. 3 ). The aedeagal head is medium-sized ( Fig. 3 ).

Etymology: The Latin adjective angulata means angulate, with reference to the shape of the tegmen.

Distribution: South to north Sweden (Skåne, Södermanland, Uppland, Västerbotten, Pite Lappmark), south to north Finland (Nylandia, Tavastia australis, Kuusamo), central Japan (Honshu).

Types: Holotype. Male ( FENN1640 ; NHRS- GULI000019912 ), Sweden, Norrbotten, Boden, Krokliden Reserve , 1994-06-13–07 -20, Malaise trap over aspen log, B. Viklund (in NHRS) . Paratypes. 3 males ( FENN1637–1639 ; NHRS-GULI000019909–19911 ), same data as the holotype .

Other specimens studied: Sweden: Skåne: male ( FENN1648 ; NHRS-GULI000019914 ), Klippan, Skäralid , 2004-05-20–06-11, The Swedish Malaise Trap Project ( SMTP) ; Södermanland: 2 males ( FENN 1649–1650 ; NHRS-GULI000019915–19916 ), Tyresta , 1999-05-05–05 - 28 and 2001-05-10–05-26, B. Viklund, L.O. & H. Ahnlund; male (A4522), same locality, 1999-05-05–05 -28, B. Viklund; Uppland: 2 males (A4518–4519), Lövsta- bruk, 1994-06–08, H. Hippa & B. Gustafsson; 2 males ( FENN1649–1650 ; NHRS-GULI000019917 , 19922 ), Knivsta, Rickebasta, 2004-07-11–08-07, SMTP ; Västerbotten: 5 males ( FENN1632–1636 ; NHRS- GULI000019904–19908 ), 5 km SE Lövånger, Kallviken, 1997-06-25–09 -15, H. Sporrong & B. Viklund; Pite Lappmark: male (A4522), Kåbdalis, Suorke State Reserve 40 km NE Moskosel, 1993-05-31–09 -23, B. Viklund . Finland: Nylandia: male ( FENN2763 ; NHRS-GULI000019928 ), Sipoo, Hindsby, 2004-07-14–07 -22, P. Vilkamaa; Tavastia australis: male ( FENN1630 ; NHRS-GULI000019902 ), Lammi, Evo, Lapinjärvi, 2004-07-27–08-12, J. Jakovlev; Kuusamo : male ( FENN1631 ; NHRS-GULI000019903 ), Kuohusuo-Kalliovaara 30 km S Kuusamo, 2004-07-31–08 - 02, M. Jaschhof . Japan: Honshu : 2 males (A7609–7610) , Yamanashi Prefecture, Oyama Town, east slope of Mt. Fuji , 1999-06-04–06 -13, M. & C. Jaschhof .

Figures

Figs 1–4: Campylomyza angulata spec. nov., male. – 1: gonostylus (paratype), dorsal; – 2: tegmen (paratype), ventral; – 3: genitalia (holotype), ventral; – 4: tegmen, ejaculatory apodeme indicated (holotype), ventral. Scale bar = 0.05 mm.

Figs 5–7: Campylomyza appendiculata spec. nov., male holotype. – 5: gonostylus, dorsal; – 6: genitalia, ventral; – 7: tegmen, ejaculatory apodeme indicated, ventral. Scale bar = 0.05 mm. Abbreviations: aed hd = aedeagal head, dsl br = dorsal gonocoxal bridge, med br = medial gonocoxal bridge, par ap = parameral apodeme, shld = shoulder of tegmen, tg9 = ninth tergite, vtr br = ventral gonocoxal bridge.