Andricus, Hartig, 1840

Kang, Minjoon & Jung, Sunghoon, 2025, A new species of Andricus Hartig (Hymenoptera: Cynipidae: Cynipini) from South Korea, Andricus koreanus sp. nov., Zootaxa 5660 (1), pp. 119-124 : 123

Key to species of the genus Andricus found in South Korea

(Modified from Tang et al. 2011; Pujade-Villar et al. 2016)

1. Anterior half of mesoscutum distinctly sculptured, strongly coriaceous, Ventral spine of hypopygium short, prominent part nearly as long as broad................................................................... Andricus songshui

- Mesoscutum alutaceous to smooth, without distinct surface sculpture anteriorly................................... 2

2 Mesoscutum with scattered hairs all over mesoscutum........................................................ 3

- Mesoscutum smooth, with a sparse setae along notauli and lateral margin......................................... 4

3. POL 1.3 x as long as OOL and LOL slightly longer than length of lateral ocellus; Female F1 about 1.4x longer than F2; ventral spine of the hypopygium short, prominent part 2.5x as long as broad in ventral view.................... A. mukaigawae

- POL 1.5 x as long as OOL and LOL 1.4 x as long as length of lateral ocellus; ventral spine of the hypopygium, prominent part 3.0x as long as broad in ventral view......................................................... A. kashiwaphillus

4. Female antenna 13-segments; median mesoscutal line long, and extending to 3/4 of entirely mesoscutum..... A. hakonensis

– Female antennae with 14-segments; median mesoscutal line absent.............................................. 5

5. F1 nearly 2.5x longer than pedicel; F13 equal in length to F12; lateral propodeal carinae distinct, curved outwards; ventral spine of hypopygium long, prominent part about 6.0 x as long as broad................................. A. pseudocurvator

- F1 nearly 2.0x longer than pedicel, F13 1.3x longer than F12 ( Fig. 1D ); lateral propodeal area very slightly curved ( Fig. 1G ); ventral spine of the hypopygium short ( Fig. 1A ), prominent part 2.0x as long as broad in ventral view...................................................................................................... A. koreanus , sp. nov.

Figures

FIGURE 1. Andricus koreanus Kang & Jung, sp. nov. sexual generation paratype: A) habitus in lateral view, female; B) head in anterior view; C) head in dorsal view; D) antenna, female; E) head in posterior view; F) mesosoma in dorsal view; G) propodeum; H) pronotum and propleuron; I) fore wing; J) tarsal claw; K) habitus in lateral view, male; L) antenna, male; M) gall. Scale bars = 0.5 mm.