Phalacrocera tipulina Osten Sacken, 1865

Kolcsar, Levente-Peter, Paramonov, Nikolai, Imada, Yume, Kato, Daichi, Gamboa, Maribet, Shinoka, Dai, Kato, Makoto & Watanabe, Kozo, 2022, Notes on the taxonomic status and distribution of some Cylindrotomidae (Diptera, Tipuloidea), with emphasis on Japanese species, ZooKeys 1083, pp. 13-88 : 13

Phalacrocera tipulina Osten Sacken, 1865

Figs 34 , 35

Non-type material examined.

Canada • 1 ♂; Quebec, Schefferville, Lac Le Jeune; 54.83006°N, 66.82436° W; alt. 500 m; 13 Jul 1981; F. Brodo leg.; CKLP. • 1 ♂; Quebec, Schefferville, Ashtray lake, 26 km SE from Schefferville; 54.66656°N, 66.65095° W; alt. 500 m; 15 Jul. 1981; F. Brodo leg.; CKLP. • 1 ♂; Quebec, Schefferville, Iron Arm, 18 km SE from Schefferville; 54.70211°N, 66.7630° W; alt. 530 m; 18 Jul. 1981; F. Brodo leg.; CKLP. Usa • 3 ♂, 2 ♀; Maine, Jonesport, Rogue Island, Bonney Point fen near coast; 44.57845°N, 67.52928° W; alt. 20 m; 2 Jun. 2011; F. Brodo leg.; CKLP. • 1 ♂, 1 ♀; Virginia, Pearisburg, Mountain Lake; 37.36106°N, 80.53231° W; alt. 1190 m; 25 Feb. 2018; Y. Imada leg.; CKLP.

Supplementary description.

Male terminalia directed dorsally. Tergite 9 fused with gonocoxite and sternite 9 (Fig. 34C ); caudal margin of tergite 9 medially with small, darker, outgrowths and with deep U-shaped notch between them (Fig. 34A ); tip of median lobes rounded in dorsal view (Fig. 34A ), triangular in in lateral view (Fig. 34C ); tergite 9 without lateral lobes. Sternite 9 reduced to narrow band (Fig. 34B ). Gonocoxite 1.2-1.3 × longer than tergite 9; ventral lobe very small membranous and indistinct (Fig. 34B, C ); apical lobe indistinct; inner surface of gonocoxite sclerotised, with few hairs, forming a triangular sclerite. Gonostylus simple, tapering distally (Fig. 34A-C ). Aedeagus complex 1.1-1.2 × longer than gonocoxite in lateral view (Fig. 34C ); ejaculator apodeme medium sized, not covered by paramere in lateral view (Fig. 34F ); interbase seems flat and wide, both dorsal and lateral view (Fig. 34D, F ); interbase with small tooth apically, directed inward in dorsal view; caudal margin with additional notches, which seems teeth in lateral view; median lobe between interbases absent or indistinct; parameres fused ventrally, and forming wide plate, as wide as interbases together (Fig. 34D, E ); aedeagus trifid, lateral branches straight, shorten than median tube (Fig. 34D-F ); median branch longer than lateral branches, situated dorsally to lateral branches, with a bifid (visible dorsally or caudally), prominent outgrowth; directed dorsally, slightly backward (Fig. 34F ); tips of branch tapering distally; sperm ducts branching from wide elongation of sperm pump; branching area slightly dark (Fig. 34D-F ).

Female terminalia: Tergite 8 posterior part membranous, with few hairs, but not divided medially (Fig. 35A ); wider than tergite 9 in lateral view (Fig. 35B ). Tergite 9 directed caudally, lateral corner triangular. Triangular sclerite large, fused with tergite 10 uncertain; tergite 10 with small, less separated lateral lobe (Fig. 35B ). Cercus short, widening apically, with blunt tip; dorsal margin with rugged margin, formed by small outgrowths (Fig. 35A, B ). Sternite 8 and hypogynial valve wide and long, dorsal margin close to tip with tooth-like lobe, directed caudally (Fig. 35B, C ). Common spermathecal duct present; sperm ducts simple, with distinct darkened area after branching, evenly tapering proximally (Fig. 35C ); three spermathecae rounded, with very long and irregularly curved duct (Fig. 35D ).

Distribution.

Canada, USA (Wisconsin to Ontario and Newfoundland, south to Virginia) ( Oosterbroek 2021).

Figures

Figure 34. Male genital structures of Phalacrocera tipulina Osten Sacken, 1865 A terminalia, dorsal view B terminalia, ventral view C terminalia, lateral view D aedeagus complex, dorsal view E aedeagus complex, ventral view F aedeagus complex, lateral view.

Figure 35. Female genital structures of Phalacrocera tipulina Osten Sacken, 1865 A terminalia, dorsal view B terminalia, lateral view C sternite 8, hypogynial valve, and sperm ducts, inner dorsal view D spermathecae.