Campylomyza zwii, 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 : 379-380

publication ID	https://doi.org/ 10.21248/contrib.entomol.65.2.373-381
persistent identifier	https://treatment.plazi.org/id/8D1D878A-1722-FF80-FCE2-CEE29D8182BD
treatment provided by	Felipe
scientific name	Campylomyza zwii
status	sp. nov.

Treatment

Campylomyza zwii spec. nov.

( Figs 12–13 View Figs 12–13 )

Diagnostic description: Campylomyza zwii is clearly distinguished from the other species of the serrata group in Europe by two characters: the tegminal processes, which are turned posteriorly, form the apex of the tegmen (←, Fig. 13 View Figs 12–13 ), and the blunt-ended aedeagal head is so large that it occupies almost all the ventral gonocoxal emargination (←, Figs 12–13 View Figs 12–13 ). Campylomyza spinata from the Far East of Russia is similar in this respect, but has – unlike all the other serrata -like species – the medial gonocoxal bridges equipped with 2 processes ( JASCHHOf 1998a: Etymology: This species is named after Thorsten (“Zwi”) Zwinger, Neuenkirchen near Greifswald, for his support of my work on gall midges.

Key to species of the Campylomyza serrata group (males) 1 Aedeagal head large, blunt-ended ( Fig. 12 View Figs 12–13 ). Tegminal processes turned posteriorly, forming the apex of tegmen ( Fig. 13 View Figs 12–13 ) ................................................................................................................................................................................. 2

Aedeagal head smaller, convex ( Fig. 3 View Figs 1–4 ) or slightly concave ( Fig. 8 View Figs 8–9 ) apically. Tegminal processes situated subapically on the dorsal side of tegmen ( Fig. 4 View Figs 1–4 ) ................................................................................................................................ 3 2 Medial gonocoxal bridges with a pair of narrow processes. Apex of gonostylus narrowly rounded ............. spinata

Medial gonocoxal bridges without processes ( Fig. 10 View Figs 10–11 ). Apex of gonostylus broadly rounded ( Fig. 10 View Figs 10–11 ) ............ zwii 3 Gonostylus with dorsal lobe ( Fig. 1 View Figs 1–4 ) ................................................................................................................................. 4

Gonostylus without dorsal lobe ......................................................................................................................................... 5 4 Gonostylus lobe small ( Fig. 1 View Figs 1–4 ). Tegmen without shoulders, posterior margin angulate ( Figs 2, 4 View Figs 1–4 ). Parameral apodemes normally long ( Fig. 4 View Figs 1–4 ) ............................................................................................................................................ angulata

Gonostylus lobe large ( Fig. 5 View Figs 5–7 ). Tegmen with small shoulders, posterior margin straight ( Fig. 7 View Figs 5–7 ). Parameral apodemes conspicuously long ( Fig. 7 View Figs 5–7 ) .......................................................................................................................... appendiculata 5 Gonostylus not curved, moderately convex posteriorly ( Fig. 10 View Figs 10–11 ). Dorsal gonocoxal bridge short ( Fig. 10 View Figs 10–11 ). Tegmen without shoulders ( Fig. 11 View Figs 10–11 ) ...................................................................................................................................... serrata

Gonostylus slightly curved, strongly convex posteriorly ( Fig. 8 View Figs 8–9 ). Dorsal gonocoxal bridge long ( Fig. 8 View Figs 8–9 ). Tegmen with shoulders ........................................................................................................................................................ lapponica

Distribution: Central Sweden (Uppland), east and south Germany (Brandenburg, Sachsen-Anhalt, Thüringen, Bayern), Austria (Salzburg), east Czech Republic (Moravia).

Types: Holotype. Male (A7616), Germany, Brandenburg, Schorfheide-Chorin Biosphere Reserve, Barnim , Klein Ziethen , Kernberge at Serwester See , 2004-07-21, Malaise trap, SDEI (in SDEI) . Paratypes. 4 males (A7617–7620), same locality as holotype, 2004-05-19, 2004-07-08, 2014- 07-14, 2005-06-29.

Other specimens studied: Sweden: Uppland: male (A4520), Lövstabruk , 1992-09–10, H. Hippa & B. Gustafsson . Germany: Sachsen-Anhalt: male (A4510), Harz, Benneckenstein , 1989-06-01, F. Menzel; Thürin-

gen: male (A4511), Thüringer Wald, Luisenthal 5 km S Ohrdruf, Käfernburg , 1989-05-27, F. Menzel; Bayern: 2 males (A7621–7622), Oberpfalz, Neumarkt, Main- Donau-Kanal, Rappersdorf, 1988-05-15–05 -30, Warncke Project. Austria: Salzburg: male (A4515), Ferleiten, 1993- 07-13, F. Menzel. Czech Republic: Moravia: male (A7623), Bile Karpaty, Klabenka, 2008-06-03, J. Ježek .