Paradelia helleni ( Ringdahl, 1932 )
publication ID |
https://doi.org/ 10.5281/zenodo.178592 |
DOI |
https://doi.org/10.5281/zenodo.6236407 |
persistent identifier |
https://treatment.plazi.org/id/0B722F74-FF88-FFF4-FF49-F8EC441BB941 |
treatment provided by |
Plazi |
scientific name |
Paradelia helleni ( Ringdahl, 1932 ) |
status |
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8. Paradelia helleni ( Ringdahl, 1932) View in CoL
Figs. 13 View FIGURES 11 – 15 , 50–53 View FIGURES 50 – 53 .
Pegomyia helleni Ringdahl, 1932: 20 View in CoL .
Pseudonupedia helleni ( Ringdahl) ; Ringdahl 1959: 293, fig. 104; Hennig 1972: 436, plate figs. 702, 714.
Paradelia (Paradelia) helleni (Ringdahl) View in CoL ; Griffiths 1987: 788, figs. 946–947, 950–952. For further references see Hennig (1972: 436).
Description. Closely resembling P. palliceps but differing as follows:
A smaller species: WL 3.8–5.5mm (n=7) vs. 5.5–6.6mm.
Male. More darkly coloured: cuticle of head, body and appendages black, covered in dark olive-grey to olive-brown dusting, more or less brownish black suffused on dorsal parts of head and body. Dark mid-dorsal stripe of abdomen broader, expanded anteriorly on tergites III-IV. Wing brownish black infuscated.
Upper frons broader than diameter of anterior ocellus; parafrontals subcontiguous, narrowly separated by frontal vitta. Prealar seta slightly shorter than p notopleural seta. Proepisternals 3–4; proepimerals 6–8. Vein C dorsally bare or with a few setulae near insertion of vein R1, ventrally finely setulose throughout or extensively bare. Mid and hind femora with rows of pv setae confined to basal two-thirds, those on mid femur long and coarse. Sternite V ( Figs. 50, 51 View FIGURES 50 – 53 ) very similar except angular lamella smoothly rounded on distal part beneath digitiform appendage. Hypopygium ( Figs. 52, 53 View FIGURES 50 – 53 ): not significantly different except for shape of surstyli in lateral aspect.
Female. Antenna, palpus and legs entirely brownish black to black.
Antennal postpedicel enlarged, fully extended to margin of face. Vein C dorsally bare or with a few irregular setulae near insertion of vein R1, ventrally with fine setulae becoming sparse or absent basal to insertion of vein Sc. Prosternum bare, exceptionally with a pair of setulae. Proepisternals 3–4; proepimerals 6–9. Oviscapt ( Fig. 13 View FIGURES 11 – 15 ) apparently different by having hind marginal setae on tergite VIII extensively duplicated laterally; diamond-shaped hypoproct a little shorter, wider than long.
Material examined. NORWAY [ ZMUC]: Sør-Trøndelag (inner): Fokstua, Dovre, 1 male (W. Hellén); Kongsvoll, 900–1100m, 1 female 20–28.vii.1983 (V. Michelsen). RUSSIA [ FMNH]: Lapponia rossica: Pummanki, 2 males [syntypes] (W. Hellén); Petsamo [= Pechenga], 1 female 8.vii.1929 (H. Lindberg). SWEDEN [ MZLU, BMNH]: Torne Lappmark: Abiskodalen, 1 female 13.vii.1958 (P.I. Persson); Mt. Nuolja, 1 male 25.vii.1925 (O. Ringdahl), above the tree line, 1 male 1.viii.1970 (A.C. & B. Pont).
Other material (teste D.M. Ackland): SWEDEN [Coll. D.M. Ackland]: Torne Lappmark: Abisko: Mt. Nuolja, swept from sallow scrubs, 1 male 3.viii.1993 (A.C. Pont).
Distribution. A Holarctic species that appears widespread in the subarctic and cordilleran parts of North America according to Griffiths (1987); Eurasian records are few and confined to northern or elevated sites in Fennoscandia.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Genus |
Paradelia helleni ( Ringdahl, 1932 )
Michelsen, Verner 2007 |
Paradelia (Paradelia) helleni
Griffiths 1987: 788 |
Hennig 1972: 436 |
Pseudonupedia helleni (
Hennig 1972: 436 |
Ringdahl 1959: 293 |
Pegomyia helleni
Ringdahl 1932: 20 |