Jurahylobittacus astictus, Li & Ren & Shih, 2008

Li, Yan-Li, Ren, Dong & Shih, Chung-Kun, 2008, Two Middle Jurassic hanging-flies (Insecta: Mecoptera: Bittacidae) from Northeast China, Zootaxa 1929 (1), pp. 38-46 : 43-45

publication ID	https://doi.org/ 10.11646/zootaxa.1929.1.2
DOI	https://doi.org/10.5281/zenodo.5231051
persistent identifier	https://treatment.plazi.org/id/038B356E-FF90-5C01-FF36-2D4AFA8AFEA5
treatment provided by	Felipe
scientific name	Jurahylobittacus astictus
status

Treatment

Jurahylobittacus astictus sp nov.

( Figs 2A–E View FIGURE 2 , 3C–D View FIGURE 3 )

Etymology. This species is named astictus after having no maculae on wings.

Material. Holotype CNU-M-NN2007002-1 and CNU-M-NN2007002-2, positive and negative (coll. Shih Chungkun), deposited at the Key Lab of Insect Evolution & Environmental Changes, the College of Life Sciences, Capital Normal University ( CNU), Beijing, China.

Horizon and locality. Jiulongshan Formation, Middle Jurassic, Daohugou Village, Shantou Township, Ningcheng County, Inner Mongolia, China.

Diagnosis. Sc-r at about as long as its length before end of Sc; no cross-vein between R 2 and R 1; and no maculae on wings.

Description. Lateral view of a complete insect. Rostrum slender; abdomen long and slender, slightly beyond wing tip ( Fig. 2 View FIGURE 2 A-C).

Wings. Basal part of forewing narrow; gradually broadening from base towards rounded apex; pterostigma slightly dark; sc-r is close to the tip of Sc; M 1+2 dividing far beyond R 4+5; one cross-vein between R 2+3 and R 4; two cross-veins R 4 and R 5; two cross-veins between R 5 and M 1; two cross-veins between M 1 and M 2; two cross-veins between M 2 and M 3; one cross-vein between M 3 and M 4; two cross-veins between CuA and CuP; two cross-veins connecting 1A and 2A; 2A extending almost to level of origin of M; and vein 3A absent ( Fig. 2D View FIGURE 2 ). Hindwings seem to be identical to the forewings in the venation, but their Sc short, ending distally before the fork of Rs ( Fig. 2E View FIGURE 2 ).

Abdomen. At least nine visible segments in lateral view ( Fig. 2C View FIGURE 2 ). Terminal abdominal segments were well preserved, basistyles, aedeagus, cercus and epiandrial lobe visible ( Fig. 3 View FIGURE 3 C-D).

Body 18 mm long, forewing 12.6 mm long, 3.0 mm wide; hind wing 10.3 mm long, 3.0 mm wide.