Laccosmylus cicatricatus, Fang, Hui, Ren, Dong, Liu, Jiaxi & Wang, Yongjie, 2018

Fang, Hui, Ren, Dong, Liu, Jiaxi & Wang, Yongjie, 2018, Revision of the lacewing genus Laccosmylus with two new species from the Middle Jurassic of China (Insecta, Neuroptera, Saucrosmylidae), ZooKeys 790, pp. 115-126 : 118-119

Laccosmylus cicatricatus sp. n. Figures 2, 3

Diagnosis.

Large body size, body length more than 37.8 mm, forewing length approx. 60-80 mm, hind wing length approx. 55-76 mm. Forewing distinctly painted with three irregular pigmented marking, outer margin deeply undulant. Hind wing with many hyaline patch-like markings and mottled with some irregular pigmented patch-like markings, and the entire dark costal region. The venation of fore- and hind wings: RA-RP area expanded with 6-7 rows of irregular cells; 1-4 rows of cells present among RP branches and MA-CuA area.

Description.

Forewing elongated, with irregularly undulant outer margin. Forewings most heavily pigmented, with two irregular hyaline stripes and a patch-like marking near the outer margin. Trichosors present along distal half of wing margin. Costal veinlets distally forked, interlinked by 6-7 rows of smaller veinlets. ScP fused with RA apically. RA-RP area expanded, with 6-7 rows of irregular cells. RP with five main branches before RP sharply bent towards RA anteriorly. One to three rows of crossveins existing between main longitudinal veins from radius area to anal area. MA forked terminally. The first branch of MP forming several dichotomous branches terminally, the second branch of MP with multiple pectinate branches terminally. CuA forming a large triangular area, with numerous oblique pectinate branches. CuP much shorter and simpler than CuA, with only two main branches. AA1 with approx. eight pectinate branches, while AA2 and AA3 almost invisible.

Hind wing broader and shorter than forewing, with outer margin slightly undulant. The membrane of hind wing covered with numerous dark and hyaline patch-like markings. Trichosors preserved along distal half of wing margin. Venation of hind wing similar to forewing from costal section to media area. CuP in hind wing with approx. eight branches, more complicated than those in forewing. AA1 partially preserved. AA2 and AA3 invisible.

Material examined.

Holotype: CNU-NEU-NN2018007P/C, sex unknown, body, and four wings preserved. This specimen is deposited in Inner Mongolia Ningcheng Daohugou Paleontological Protection Museum, Chifeng City, Inner Mongolia, China.

Type locality and horizon.

Jiulongshan Formation, Daohugou locality (41°18.5'N, 119°13'E (DDM)), Shantou Township, Ningcheng County, Chifeng City, Inner Mongolia, China; Middle Jurassic, Bathonian-Callovian boundary.

Etymology.

The Latin cicatricatus is derived from mottles and patches on pigmented wings of this species.

Remarks.

The new species belongs to the Laccosmylus according to the features of hind wing, i.e. the broad hind wing shape, undulate outer margin, similar venation, and similar distinct colour markings. L. cicatricatus sp. n. can be distinguished from the type species L. calophlebius by the following characters in hind wing, e.g., the entire dark costal region vs. the costal region with intermittent marking on L. calophlebius , and more rows of cells present among RP branches and MA-CuA area than in L. calophlebius . In addition, a hyaline spot on the hind wing apex presents in the L. calophlebius but absent in L. cicatricatus sp. n.