Sinoelcana minuta Gu, Tian, Wang & Yue, 2020

Gu, Jun-Jie, Tian, He, Wang, Junyou, Zhang, Wenzhe, Ren, Dong & Yue, Yanli, 2020, A world key to the genera of Elcanidae (Insecta, Orthoptera), with a Jurassic new genus and species of Archelcaninae from China, ZooKeys 954, pp. 65-74 : 65

Sinoelcana minuta Gu, Tian, Wang & Yue sp. nov.

Diagnosis.

As for genus.

Materials.

Holotype: IMMNH-PI11334 (Part), IMMNH-PI11335 (Counterpart), Female.

Locality and age.

Daohugou Village, Wuhua Township, Ningcheng County, Inner Mongolia, China; Jiulongshan Formation, Bathonian-Callovian boundary interval ( Xu et al. 2016; Yang et al. 2020), Middle Jurassic.

Description.

Head: head hypognathous, with large, oval eyes; scape cylindrical, much wider than pedicel and the flagellum; compound eyes rather large, 1.1 mm long, oval; Thorax (Fig. 2A, B ): pronotum saddle-shaped, 2.4 mm long, lateral lobe 2.6 mm high. Legs: meta-femur 8.1 mm long, 1.9 mm wide; meta-tibiae has three pairs of large, leaf-like spurs, and one basal and small spur, ds3 1.86 mm long, ds2 1.86 mm long, ds1 1.25 mm, ds4 0.85 mm long (Fig. 2C, D ). Forewing (Fig. 1 ): 14.3 mm long, 3.4 mm wide (maximum width recorded); CP distally curved and reaching anterior wing margin beyond the origin of CuA+CuPaα; ScA simple, ending in anterior margin nearly 1/4 of the wing length; ScP reaching anterior margin basal of the origin of stem RP and giving off 5 long and oblique branches ending in anterior margin; stem R long and strong, branched into RA and RP close to the middle of wing length; area between ScP and R basally narrow, getting wider after ScP reaching wing margin; RA has numerous oblique branches reaching anterior margin; RP fused with MA1 distal to the end of ScP; RP has 6 main pectinate branches and 8 terminals; M forking into MA and MP at the level of the end of ScA; MA forking into MA1 and MA2 at the level of the end of ScP; the fusion of RP and MA1 distant to the origin of MA1, MA2 distally branch; MP simple, originates at the level of the end of ScP; area between branches of RA and RP covered with simple and straight crossveins; CuA+CuPaα simple, slightly undulate, originating basal of the end of CP; CuPa short, forking into CuPaα and CuPaβ close to the wing base; CuPaα fused with M+CuA immediately and running for a long distance; CuPaβ and CuPb simple; AA1 strong, reaching posterior wing margin distal of the end of ScA; without distinct coloration spots on the wing. Abdomen: cerci short and conical, unsegmented, 2.3 mm long, with numerous hairs; ovipositor sickle like, 6.4 mm long (measured from the tip to the base), more than twice as long as the pronotum.

Figures

Figure 1. Holotype of Sinoelcana minuta sp. nov., IMMNH-PI 11334, forewing. A Photograph B reconstruction drawing. Scale bar: 2 mm.

Figure 2. Holotype of Sinoelcana minuta sp. nov., IMMNH-PI 11334. A, B Habitus, photograph (A) and reconstruction drawing (B). C, D meta-tibiae, photograph (C) and reconstruction drawing (D). E, F ovipositor, photograph (E) and reconstruction drawing (F). Scale bars: 2 mm (A, B); 1 mm (C-F).