Omalaspis cavroi ( Hedicke, 1914 ), 2010

Ros-Farré, P. & Pujade-Villar, J., 2011, Revision of the genus Omalaspis Giraud, 1860 (Hym.: Figitidae: Aspicerinae), Zootaxa 2917 (1), pp. 1-28 : 6-7

publication ID	https://doi.org/ 10.11646/zootaxa.2917.1.1
persistent identifier	https://treatment.plazi.org/id/038A530B-F505-6978-FF58-F99B5E13DFBE
treatment provided by	Felipe
scientific name	Omalaspis cavroi ( Hedicke, 1914 )
status

Treatment

Omalaspis cavroi ( Hedicke, 1914)

( Figs. 1a View FIGURE 1 , 2a View FIGURE 2 , 3b View FIGURE 3 & 4b View FIGURE 4 )

Tavaresia cavroi Hedicke, 1914: 113

Omalaspis cavroi (Hedicke) , in Weld, (1952): 169

Type material. (1 ♂). HOLOTYPE male (MNHN-Paris): “Fechain, laurier sauce, 29-VIII-1910 ” (handwritten, white label), “ ♂ ” (white label), “Type” (red label), “det. Hedicke” (white label), “Muséum Paris, coll. Cavro” (white label), “ Holotype Tavaresia cavroi Hedicke , det. Ros-Farré 2010 ” (red label), “ Omalaspis cavroi (Hedicke) Ros-Farré, 2010 det.” (white label).

Additional material. (6 ♂ & 10 ♀). CANADA: ALBERTA : 1 ♀ ( CNCI), 21-VII- 1956 in Elkwater , O, Peck coll. BRITISH COLUMBIA: 1 ♀ ( CNCI), 17-VII- 1988 in Anahim Lake to Redstone 1000 to 1500m, S. & J. Peck, car netting pine sand land . NEW BRUNSWICK: 1 ♂ ( CNCI), 31-VIII- 1978 in Kouchilouguac National Park, New Brunswick , S. J. Miller coll. , Code 1366H ; 1 ♂ ( CNCI), 1/ 17-VII- 1970 in Fredericton, Acadia, New Brunswick , C. M. Yoshimoto coll. ONTARIO: 1 ♀ ( CNCI), 13-VII- 1960 in One Sided Lake , S. M. Clark coll. ; 1 ♀ ( CNCI), 13/ 19- VIII- 1977 in Constance Bay, Ottawa , M. Sanborne MT .; 1 ♀ ( CNCI), 14-VII- 1975 in St. Lawrence Is. Nat. Park, Ontario. Greenlander I. Centre, Code 1-489V ; 1 ♂ ( CNCI), 20-VI- 1957 in Ottawa , J. G. Chillcott coll. QUEBEC: 1 ♂ ( CNCI), 6-VIII- 1959 in Laurentide 42º 46’ N 72º 12’ W, G. E. Spencer coll. GoogleMaps USA: ALASKA: 1 ♀ ( CAS), 10- VIII- 1978 in Fairbanks , 135m, P. Hanson & Jr. Arnaud coll. ARKANSAS: 1 ♀ ( CNCI), 25/ 30-V- 1972 in Lake Oachita, Mal. Trap , G. Heinrich coll. CALIFORNIA: 1 ♀ ( CAS), 19-VIII- 1971 in Madera Co. Meadow near locked gate, road to Mark Mine, SE. Slope of Green MT. 7600 ft., H. Leech coll. MAINE: 1 ♂ ( NHM), 23-VII- 1959 in Dryden, Maine , G. Heinrich, B. M. 1961-239 . MONTANA: 2 ♀ ( CNCI), 15/ 30-VI- 1988 in Wayne Co. Williamsville , J. T. Becker Coll., M. T .; VIRGINIA: 1 ♀ ( CAS), VI- 1929 in Falls Church , VA, on flower of parsnip ; WITHOUT LOCALITY: 1 ♂ ( DEI), 12-VI-1936 aus Syrphid, W. Spejer .

Diagnosis. Omalaspis cavroi is easily distinguished from other Omalaspis species by the sculpture of mesoscutum being coarsely coriaceous to granulate and the vertex in dorsal view has a shiny and rugose furrow. Other important characters are the median ridge, which is complete and very conspicuous and the antero-admedian lines also very conspicuous, quite raised.

Redescription. Length. Female 3.1 to 4.0 mm; male 2.8 to 3.5 mm.

Coloration. Head and metasoma dark brown. Mesosoma, antennae and legs light brown. Wing membrane hyaline. Wing veins light yellow. Coloration of holotype but it can be very variable: the studied specimens are mostly black with mesopleuron dark to light brown.

Head. Frons coriaceous, weakly rugose. Frontal carinae rather weak to nearly absent. Lateral frontal carinae conspicuous, space between them and compound eyes coriaceous, with some small transverse carinae. Supratorular impression conspicuous and enlarged. Ocelli prominent; vertex, in frontal view, slightly incised. Vertex in dorsal view with shiny, rugose furrow. Posterior vertex coriaceous, weakly rugose. Occiput with thin transverse carinae. Genae sharply margined and expanded, shiny and with transverse carinae.

Antenna. FEMALE. Filiform. Antennal formula: 6(3): 2(2): 6(2): 6(2): 6(2): 6(2): 6(2): 5(2): 4(2): 4(2): 4(2): 4(2): 9(2). MALE. Filiform, F1 clearly excavated. Antennal formula: 4(2): 2(1.5): 5(2): 5(1.5): 5(1.5): 5(1.5): 5(1.5): 5(1.5): 4(1.5): 4(1.5): 4(1.5): 4(1.5): 3.5(1.5): 6(1.5).

Mesosoma. Lateral surface of pronotum coriaceous, with short and scarce transverse carinae dorsally, basally with conspicuous transverse carinae, central area coriaceous. Mesoscutum coarsely coriaceous to granulate, with small transverse carinae anteriorly between notauli. Parascutal sulcus shiny. Median ridge complete, very conspicuous, antero-admedian lines conspicuous slightly convergent, reaching 1/3 mesoscutum length. Median mesoscutal furrow wide, reaching between 1/2 and 1/3 mesoscutum length, with small transverse carinae inside, with sparse coriaceous sculpture. Notauli wide posteriorly, narrow anteriorly, with small transverse carinae inside and with sparse coriaceous sculpture. Mesosoma very slightly humped in lateral view. Mesopleuron slightly sculptured anteriorly, smooth posteriorly. Scutellum 0.8 to 1.0 times scutum length. Interfoveal line reaching 1/2 to 1/3 scutellar disc length, as prominent as lateral margins of scutellum, sometimes slightly more prominent. Scutellar foveae with some longitudinal carinae, sometimes also with one or two oblique carinae. Scutellar disc granulate to rugose, with scarce and small transverse carinae. Lateral scutellar margin sometimes slightly confluent, posterior margin of scutellum straight.

Wing. Radial cell 1.8 to 2.1 longer than wide. R2 straight, curved near wing margin.

Distribution. Holarctic. Original description from Palaearctic, France ( Hedicke, 1914); in this study is cited for the first time from the Nearctic: USA (Alaska, Arkansas, California, Maine, Montana and Virginia) and Canada (Alberta, Ontario and New Brunswick).

Biology. Unknown.

Comments. In the original description of Tavaresia cavroi, Hedicke (1914) mentions that the type material includes only a male collected in August 1910, nevertheless Hedicke collected two specimens (deposited at MNHN-Paris) that includes a male and a female collected on this same date. The female does not belong to Omalaspis , in fact it does not belong to Aspicerinae but to Anacharitinae (more precisely to the genus Aegilips following the key given in Restrepo-Ortiz & Pujade-Villar (2010). Tavaresia was synonymized with Omalaspis by Weld (1952) without examining the type material; after studying the type material of T. cavroi we are sure that this species belongs to Omalaspis and that Tavaresia and Omalaspis are synonyms as Weld (1952) inferred.