Dicerura barbata Mamaev 1966
- Dataset
- Towards reliable identification of male Dicerura: descriptions of three new and seven poorly known species in the Palearctic region (Diptera: Cecidomyiidae, Porricondylinae)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Insecta
- order
- Diptera
- family
- Cecidomyiidae
- genus
- Dicerura
- species
- Dicerura barbata
diagnosis
Diagnosis. The gonocoxites of D. barbata are quite unlike that of all other Dicerura in having an extremely large emargination ventrally, which leaves just a short, asetose intercoxal bridge; the emargination is partly filled with an ovate, microtrichose lobe (Fig. 11, ↓ 1). The large, subtriangular gonocoxal processes are densely microtrichose medially; the dorsal apodemes are conspicuously long and thin (Fig. 11, ↓ 2). The elongate gonostylus has a small side lobe subapicomedially, which is covered apically and dorsally with dense, large microtrichia, a few setulae, and 1 – 2 short bristles (Fig. 10, ↓ 3). The apical fork of the ejaculatory apodeme is perfectly V-shaped (Fig. 12). The elongate, parallel-sided tegmen, which is membranous for the most part, has a broadly rounded apex and a single pair of small, sclerotized processes subapicolaterally (Fig. 12, ↓ 4). The apex of the ninth tergite is bilobed and densely covered with short, thick microtrichia, especially along the edge and on the inside (Fig. 9).
discussion
Remarks. The only specimen of D. barbata examined here is remarkable for the presence of a distinct, complete M 1 + 2, a vein usually regarded as vestigial in Dicerura. Mamaev (1966) did not mention this vein in his description of D. barbata.
materials_examined
Material examined. Sweden: male, Lule Lappmark, Jokkmokk, Kaltisbäcken NR, herb-rich old-growth taiga near stream, 10 July 2016, aspirator, M. Jaschhof (specimen no. CEC 1385 in NHRS).
Name
- Homonyms
- Dicerura barbata Mamaev 1966