Lance lacewings of the world (Neuroptera: Archeosmylidae, Osmylidae, Saucrosmylidae): review of living and fossil genera Author Winterton, Shaun L. Author Martins, Caleb Califre Author Makarkin, Vladimir Author Ardila-Camacho, Adrian Author Wang, Yongjie text Zootaxa 2019 2019-04-09 4581 1 1 99 journal article 27348 10.11646/zootaxa.4581.1.1 5b259853-01f6-4307-8bef-58c98ec73bd3 1175-5326 2633842 20A9776D-AE5F-41BC-A35B-0C5E42EDFE48 Juraheterosmylus Wang et al. , 2010 ( Fig. 33 ) Type species. Juraheterosmylus antiquatus Wang et al. , 2010 : 46 (by original designation). Diagnosis. Antenna at least half FW length; wing weakly mottled infuscate; wings narrowly ovoid, posterior margin straight distally; FW costal area relatively narrow, subcostal veinlets relatively widely spaced and simple proximally, and more closely spaced and sometimes forked distally; RP with rather dense (13–14) slightly sinuous branches; RP1 originating relatively far from origin of RP; 2–3 well defined gradate series in both wings, with few irregular crossveins basal to these; FW M fork at, or distal to, origin of RP1; MA and MP with few branches distally (mostly dichotomous); in both wings CuA and CuP with similar number of pectinate branches. Comments . Wang et al. (2010) described this genus with three species based on a series of relatively complete compression fossils from Middle Jurassic-aged deposits in China . This genus has clear similarities to Heterosmylus and Jurosmylus , but some distinct branching patterns in the forewing, most notably in the higher number of welldefined gradate series crossveins and the distal branching patterns of the radial and medial veins. Included species . J . antiquatus Wang et al. , 2010 ( China ) (Middle Jurassic) J . astictus Wang et al. , 2010 ( China ) (Middle Jurassic) J . minor Wang et al. , 2010 ( China ) (Middle Jurassic)