Penthetria gracilis ( Unger, 1842 ) Skartveit & Krizmanić, 2020

Skartveit, John & Krizmanić, Katarina, 2020, Revision of fossil Bibionidae (Insecta: Diptera) from the Miocene of Radoboj, Croatia, Zootaxa 4759 (3), pp. 351-378 : 355-356

publication ID

https://doi.org/10.11646/zootaxa.4759.3.3

publication LSID

lsid:zoobank.org:pub:FBD53C14-07AA-4E01-9739-214680A1DE4C

DOI

http://doi.org/10.5281/zenodo.3810473

persistent identifier

http://treatment.plazi.org/id/C6550F6A-9518-FF8B-23B1-FDABFAECE21E

treatment provided by

Plazi

scientific name

Penthetria gracilis ( Unger, 1842 )
status

comb.n.

Penthetria gracilis ( Unger, 1842)   comb.n.

( Figs. 3 View FIGURE 3 , 22–23 View FIGURES 22–25. 22 )

Bibio gracilis Unger, 1842: 426   . (nec Protomyia gracilis Heer, 1856   )

Type material: Holotype (male, SLJG 77464 View Materials ). Heer (1849: 217) mentioned one specimen from Graz and one from Vienna. There is a male specimen in NHMW labeled « Bibio ungeri Heer   » which is clearly not conspecific with the holotype of Bibio ungeri   , this could possibly be the second specimen.  

Male: Total length 11.2 mm

Head: Length 1.21 mm, width 1.32 mm. Black, very poorly preserved.

Thorax: Length 3.2 mm, width 2.4 mm. Black. Halter yellowish-brown.

Wing ( Fig. 22 View FIGURES 22–25. 22 ): Length 7.4 mm, width 3.3 mm. Dark brown fumose, veins strong throughout, dark brown, pterostigma indistinctive. Costa quite straight, subcosta indistinctive. Costa extends a little over half-way between apices of R 4+5 and M 1. R 2+3 straight and oblique. M-veins and CuA 1 apically straight. CuA 2 apically curved. Vein measurements: basal R 2.4 mm, distal R 1 3.2 mm, basal R s 1.2 mm, distal R s 1.3 mm, R 2+3 1.4 mm, R 4+5 2.9 mm, R-M 0.4 mm, basal M 2.8 mm, distal M 0.6 mm, M 1 3.5 mm, M 2 2.8 mm, M-Cu 0.3 mm, CuA 2.0 mm, CuA 1 3.8 mm, CuA 2 2.5 mm.

Legs: Black, poorly preserved. Length of fore femur 2.3 mm, hind femur 3.3 mm.

Abdomen: Length 7.3 mm, width 1.7 mm. Black, rather slender. Pile not apparent.

Terminalia ( Fig. 23 View FIGURES 22–25. 22 ): Hypopygium width 1.2 mm. Gonostylus digitiform, slender and curved. Epandrium moderately bilobate with wide, shallow indentation between rounded lobes.

Female unknown.

The species is not to be confused with Protomyia gracilis Heer, 1856   (placed as a synonym of Plecia bucklandi   by Skartveit & Nel 2017), which was listed as Penthetria gracilis   by Handlirsch (1907) and Evenhuis (1994).

NHMW

Naturhistorisches Museum, Wien

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Bibionidae

Genus

Penthetria

Loc

Penthetria gracilis ( Unger, 1842 )

Skartveit, John & Krizmanić, Katarina 2020
2020
Loc

Bibio gracilis

Unger, F. 1842: 426
1842