Cimbrochrysa Schlüter, 1982

Makarkin, Vladimir N. & Perkovsky, Evgeny E., 2024, Nothochrysinae (Neuroptera: Chrysopidae) from the early Eocene Fur Formation, Denmark, with description of a new genus, Zootaxa 5433 (4), pp. 529-545 : 539-541

Genus Cimbrochrysa Schlüter, 1982

Cimbrochrysa Schlüter, 1982: 258 ; Schlüter, 1984: 7; Willmann & Brooks, 1991: 126, 130; Willmann, 1993: 242, 244; Peñalver et al., 1995: 486; Nel et al., 2005: 67; Makarkin & Archibald, 2013: 127; Archibald et al., 2014: 191; Makarkin, 2014: 4; Archibald & Makarkin, 2015: 365, 366; Makarkin et al., 2022: 312 .

Type species: Cimbrochrysa moleriensis Schlüter, 1982 , by original designation.

Emended diagnosis. Forewing: inner series of gradate crossveins arranged in strongly broken line; im pentagonal (length/width ratio 3.7:1); 2m-cu located nearly in middle of im; CuP with one branch; A1, A2 probably simple.

Species included. Cimbrochrysa moleriensis from the earliest Eocene Fur Formation, Denmark; C. americana Makarkin et al., 2022 , C. major Makarkin et al., 2022 , both from the latest Eocene Florissant Formation, Colorado, U.S.A.

Remarks. The North American specimens were assigned to this genus due to the similarity of their forewing venation to that of the type species. However, the configurations of A1 and A 2 in the holotype are poorly preserved (either might be forked), and these veins are simple in the North American specimens. The angulate hind margin of the holotype forewing figured by Schlüter (1982: Fig. 1b ) is false judging from its photograph; the holotype forewing is oval as normal for Chrysopidae .

The hind wing venation of C. moleriensis was not described, although it is preserved judging from Schlüter’s photograph (1982: Fig. 1a ). The hind wing MA is proximally fused with RP in both American species ( Makarkin et al. 2022: Figs 9C, D , 11C, D, 13C, D). However, this character state is not included in the genus diagnosis as its condition in the holotype is unknown .

Figures

FIGURE 1. Stephenbrooksia multifurcata Willmann, 1993, holotype. A, part (NHMD-624881A); B, counterpart (NHMD- 624881B). Scale bars = 2 mm.

FIGURE 9. Danochrysa madseni Willmann, 1993, specimen FUM-13748.A, specimen as preserved; B, venation of forewing. Scale bars = 2 mm.