Camptomyia piptopori Panelius, 1965

Jaschhof, Mathias & Jaschhof, Catrin, 2019, New and rarely found species of asynaptine Porricondylinae (Diptera: Cecidomyiidae) in northern Europe, Zootaxa 4604 (2), pp. 281-300 : 297

Camptomyia piptopori Panelius

Figs 25–27

The presence of C. piptopori in Sweden is evidenced by a single male found recently in a Malaise trap catch from Dalarna. The genitalia of this specimen correspond closely to the illustration by Panelius (1965: fig. 28c) depicting a specimen of the type series from Finland, the only exception being that the aedeagal apodeme of our specimen has a weakly sclerotized broadening basally, which lacks in Panelius’s specimen.

Diagnosis. Male genitalic morphology of C. piptopori is intermediate between C. flavocinerea and the corticalis group of species; with the former C. piptopori shares the tusk-shaped ventral parameres ( Fig. 25 ), with the latter the slender, slightly curved gonostylus ( Fig. 26 ). The co-occurrence of those two characters is sufficiently indicative of C. piptopori , but checking other traits is recommended here to back the determination. The ninth tergite, which is completely setose, has a clearly incised posterior edge ( Fig. 27 , ↓ 1) and, as indicated by a dark double line, an apodeme that runs all along the longitudinal axis. Of the gonocoxal synsclerite, the base is markedly narrowed ( Fig. 26 , ↓ 2); the small, ventral emargination has a microtrichose lobe anteriorly ( Fig. 26 , ↓ 3); and the dorsal apodemes are longer than the distance separating them. Much of the gonostylus is covered with setae of various sizes, including 2–3 conspicuously long ones subbasomedially, while the distal half portion is peculiar for having only microtrichia and a number of fine setulae ventromedially ( Fig. 26 , ↓ 4) (the dorsal side is normally setose); the gonostylar apex, i.e. about one fourth of the gonostylar length, tapers and bends towards the end, where it bears a comb-like claw of moderate size. The ventral parameres, which are tusk-shaped, protrude the aedeagal apex, their lengths equaling half the extent of the dorsal parameres; the parameral apodemes are inconspicuous ( Fig. 25 ).

Material studied. Sweden: 1 male, Dalarna, Älvdalen, Fulufjället NP, Göljån valley , alluvial old-growth taiga, 8–21 July 2018, MT, MCJ (spn. no. CEC 1753 in NHRS) .

Geographic distribution. The Swedish finding reported here is the most western distribution known of C. piptopori . Farther to the east the species has been found in Finland, Estonia, Latvia, and the European part of Russia ( Panelius 1965; Spungis 1989; 1998).

Figures

FIGURES 25–33. Morphologyof Camptomyia spp. 25–27:C. piptopori, specimen from Sweden; 28–33:C. ulmicola, specimens from Sweden. 25: Aedeagus and parameres, ventral. 26: Genitalia, ventral. 27: Ninth tergite, dorsal. 28: Fourth flagellomere, lateral. 29: Genitalia, ventral. 30: Gonostylus, dorsal. 31: Ninth tergite, dorsal. 32: Aedeagus and parameres, ventral. 33: Apex of aedeagus and parameres, ventral, variation. Scales for 25–26, 28–29, 0.05 mm, for 27, 30–32, 0,025 mm. Arrows refer to characters described in the diagnoses.