Archeoviparosiphum baissense (Shaposhnikov & Wegierek, 1989) Shaposhnikov & Wegierek, 1989

Żyla, Dagmara, Homan, Agnieszka, Franielczyk, Barbara & Wegierek, Piotr, 2015, Revised concept of the fossil genus Oviparosiphum Shaposhnikov, 1979 with the description of a new genus (Hemiptera, Sternorrhyncha, Aphidomorpha), ZooKeys 483, pp. 9-22 : 12-16

Taxon classification Animalia Hemiptera Oviparosiphidae

Archeoviparosiphum baissense (Shaposhnikov & Wegierek, 1989) comb. n. Figs 5, 6

Holotype.

4210/2623 ±, Paleontological Institute, Russian Academy of Sciences, Moscow; Baissa locality (Russia); Early Cretaceous; alate female

Paratypes.

3064/2107; 3064/2108(2273); 3064/2161(2164); 3064/2165; 3064/2166; 3064/2171(5138); 3064/2181; 3064/2184; 3064/2193(2210); 3064/2203; 3064/2205; 3064/2213 ±; 3064/2309(2311); 3064/2310(2312); 3064 /2313(4846); 3064/2314; 3064/2315(2316); 3064/3978; 3064/4765; 3064/4775; 3064/4816; 3064/4911; 3064/4915; 3064/4916(4922); 3064/4970; 3064/4975; 3064/5031; 3064/5110; 4210/2521 ±; 4210/2624 ±; 4210/2625; 4210/2771; 4210/2801 ±; 4210/2802; 4210/2803

Additional material.

1989/1072; 3064/2160; 3064/2173(4751); 3064/2225; 3064/2276; 3064/2278; 3064/2284; 3064/4825; 3064/4870; 3064/4990; 3064/5023; 3064/5113; 3064/5130a; 4210/2548; 4210/4120 ±; 4210/4365 ±; 4210/4629 ±; 4210/5553 ±; 4210/5588 ±; 4210/5590 ±; 4210/5618 ±; 4210/5630 ±; 4210/5654; 4210/5659; 4210/5661; 4210/5665; 4210/5669; 4210/5674; 4210/5675; 4210/6889 ±; 4210/6893 ±; 4210/6894 ±; 4210/6896 ±; 4210/6899 ±; 4210/6900 ±; 4210/6908; 4210/6911; 4210/6912a; 4210/6915; 4210/7577a ±; 4210/7577b ±; 4210/7580 ±; 4210/7584 ±

Emended diagnosis.

Bases of cubital veins leaving the main vein at the same point.

Description.

Body (1.9-2.7) thick (Figs 5 A–C, 6H). Anterior margin of head (Fig. 6A) straight. Length of the head (0.19-0.25); width (0.35-0.40). Epicranial suture present, sometimes not clearly visible. Lateral sutures present. On head, additional narrow oblique slats running from front and lateral edges to the posterior part of the head. Distance between ocelli 0.18-0.20. Antennae (0.94-1.40) (Figs 6F, G) half of body length, and longer or equal to hind tibiae length. Segments I 0.05-0.06 and II 0.04-0.06 in length. Segment III (0.34-0.42) shorter than the cumulative length of subsequent segments; about 3-4 times longer than wide. Segment IV (0.11-0.14) as long as wide, equal to segment V and VI. Segment VII (0.15-0.18) slightly longer than the previous segment, about twice as long as wide, narrowed in the apical part. Secondary rhinaria arranged in dense, transverse rows (Figs 6B, D, E), on segment III in 24-30 rows; segments IV–VI in 7-10 rows; segment VII in 5-8 rows. 8-11 secondary rhinaria in one row on segment III. Rostrum relatively long, reaching to the hind coxae. Length of mesoscutellum 0.13-0.15; width 0.39-0.45. Length of mesothoracic sternite 0.41-0.46; width 0.68-0.72. Length of fore femur 0.34; fore tibia 0.61-0.71; segment I of fore tarsus 0.03; segment II 0.13-0.14. Length of middle femur 0.39-0.49; middle tibia 0.68-0.78; segment I of middle tarsus 0.03; segment II 0.15-0.17. Length of hind coxa 0.15-0.16; hind trochanter 0.10; hind femur 0.48-0.53; hind tibia 0.89-1.28; segment I of hind tarsus 0.04 (Fig. 6C); segment II 0.17-0.19. Hind tibiae about half the body length. Fore wing (3.10-3.60) longer than body length. Distance from base of wing to end of pterostigma 2.50-2.70. Vein CuA1 about twice as long as CuA2. Vein M three branched, its base directed to base of pterostigma, not connected with main vein. M furcates to M1+2 and M3+4 behind Rs base. Common stem of vein M longer than M1+2. Vein Rs slightly curved, leaving proximal part of the pterostigma and running far away from it. Pterostigma pointed, long and narrow; 4 times longer than wide. Hind wing (2.70) with two cubital veins. Apical part of abdomen slightly sclerotized. Diameter of siphunculus 0.07-0.08.