Jurakempynus Wang et al., 2011a

Winterton, Shaun L., Martins, Caleb Califre, Makarkin, Vladimir, Ardila-Camacho, Adrian & Wang, Yongjie, 2019, Lance lacewings of the world (Neuroptera: Archeosmylidae, Osmylidae, Saucrosmylidae): review of living and fossil genera, Zootaxa 4581 (1), pp. 1-99 : 29

Jurakempynus Wang et al., 2011a

( Figs 11A )

Type species. Jurakempynus sinensis Wang et al., 2011a: 867 (by original designation).

Diagnosis. Forewing ovoid with posterior margin straight to slightly falcate; costal area broad basally, narrowing distally, subcostal veinlets mostly irregularly forked; RP with numerous branches (typically more than 15), distal branches slightly sinuous, crossveins numerous, irregularly spaced in basal half of wing, absent in distal half, RP branches with extensive multi-layered end-twigging extending deep into radial area of both wings, outer gradate series absent in both wings; FW M forked nearly level with origin of RP1; MA, MP with few pectinate branches apically; HW medial vein with expanded intramedial area with two rows of irregularly arranged cells; FW CuA strongly pectinate (seven forked branches; proximal branch profusely branched); HW CuA with 10–15 pectinate branches; FW CuP with 3–5 pectinate branches, HW CuP with 4–12 pectinate branches; A1 strongly pectinate in both wings (4–8 branches).

Comments. Jurakempynus is a typical kempynine osmylid distinguished from other genera by the expanded area in the hind wing medial vein with two rows of irregular cells, numerous RP branches in both wings with dense crossveins basally and the outer gradate series apparently lacking in radial field. The hind wing veins CuA and CuP both have fewer pectinate branches than most extant genera.

Included species.

J. bellatulus Wang et al., 2011a ( China) (Middle Jurassic)

J. arcanus Khramov, 2014a ( Kazakhstan) (Late Jurassic)

J. sublimis Khramov, 2014a ( Mongolia) (Late Jurassic)

J. sinensis Wang et al., 2011a ( China) (Middle Jurassic)

J. epunctatus Wang et al., 2011a ( China) (Middle Jurassic)

Figures

FIGURE 11. Kempyninae fossils. A. Jurakempynus sinensis Wang et al. (from Wang et al., 2011a); B. Cretosmylus sibiricus Makarkin (from Makarkin, 1990) (forewing); C. Kempynosmylus zherikhini Makarkin (from Makarkin, 2014) (forewing) (figures not to scale).