Penthetria longa ( Heer, 1849 ), 1907

Skartveit, John & Krizmanić, Katarina, 2020, Revision of fossil Bibionidae (Insecta: Diptera) from the Miocene of Radoboj, Croatia, Zootaxa 4759 (3), pp. 351-378 : 356-357

? Penthetria longa ( Heer, 1849)

( Figs. 4 , 24 )

Protomyia longa Heer, 1849: 233 .

Plecia longa (Heer) Loew, 1868: 184 .

Penthetria longa (Heer) Handlirsch, 1907: 960 .

Material: One male in NHMW, not the specimen depicted by Heer, probably non-type. The type described by Heer is a female. Heer mentioned one female in Graz and a detached wing in Vienna.

The specimen at hand is probably not part of the type series, and since it is a male while the type was a female, its identity is quite uncertain and the following redescription is very preliminary. The specimen is also too poorly preserved for a detailed description of its morphology.The genus placement of this species is also highly tentative, the wing venation might suggest genus Plecia . It is tentatively placed in Penthetria here due to its gracile habitus.

Male: Total length 13.1 mm

Head: Length 1.3 mm. Poorly preserved, dark brown.

Thorax: Length 3.3 mm. Dark brown.

Wing ( Fig. 24 ): Length 11.6 mm, width 4.1 mm. Brownish fumose, veins rather weak.

Legs: Long and slender, brown. Fore femur length 3.6 mm, width 0.5 mm, fore tibia length 4.0 mm, width 0.33 mm, hind femur length 4.7 mm, width 0.4 mm, hind tibia length 4.0 mm.

Abdomen: Length 8.8 mm, width 2.1 mm. Brown.

Terminalia: Hypopygium width 1.3 mm. Gonostylus straight.

Female unknown.

Figures

FIGURE 4. Penthetria longa, male, NHMW, no catalog number.

FIGURES 22–25. 22. Penthetria gracilis, male, wing, SLJG 77464. 23. Penthetria gracilis, male, hypopygium, dorsal view, SLJG 77464. 24. Penthetria longa, male, wing, NHMW, no catalog number. 25. Penthetria murchisonii, female, holotype, wing, SLJG 77466. Scale bar = 1 mm.