Dryinus constans

Olmi, Massimo, Guglielmino, Adalgisa & Vollaro, Massimo, 2011, Revision of fossil species of Dryinus belonging to constans group, with description of a new species (Hymenoptera: Dryinidae), Zootaxa 2981, pp. 43-55 : 45

Key to the fossil species of Dryinus constans group

Females (males unknown)

1. Notauli complete; fore wing crossed by 2 dark transverse bands.................................... D. pristinus Olmi

- Notauli incomplete; fore wing with a dark spot or crossed by 2 dark transverse bands............................... 2

2. Fore wing with 1 dark spot.................................................................. D. priscus Olmi

- Fore wing crossed by 2 dark transverse bands............................................................... 3

3. Enlarged claw with a long row of lamellae ( Fig. 4 A ); pronotal tubercle not reaching tegula................................................................................................. D. palaeodominicanus Currado & Olmi

- Enlarged claw without lamellae ( Fig. 2 B); pronotal tubercle reaching tegula..................... D. alamellatus sp. nov.

Figures

FIGURE 2. Dryinus alamellatus sp. nov., holotype Ƥ, lateral view (A), with magnified chela (B). C. D. palaeodominicanus, Ƥ (JVC). Length 4.0 mm.

FIGURE 4. A. Dryinus palaeodominicanus, chela of holotype. B. D. priscus, holotype Ƥ. Length 4.0 mm.