Lachnaia tristigma

Ruiz-García, Andrés Baselga And Javier, 2007, Revision of the Lachnaia tristigma (Lacordaire, 1848) species-group (Coleoptera: Chrysomelidae) and description of a new species, Zootaxa 1630, pp. 39-46 : 46

Key to the species of the Lachnaia tristigma species-group

1. Median lobe of aedeagus shorter, with a small mushroom-shaped piece in the operculum ( Figs. 7–8 ). Sclerites of endophallus ( Figs. 13–16 ), with two lateral pieces short, not enlarged apically and markedly bent medially, and the unpaired central sclerite clearly broader than long. Spermathecal duct short and curled in numerous small loops ( Figs. 22–23 ). Iberian Peninsula and southern France............................... ................................................................................................................... Lachnaia tristigma (Lacordaire)

- Median lobe of aedeagus larger ( Figs. 1–6 ). Sclerites of endophallus ( Figs. 9–12 ), with two lateral pieces long, slightly bent medially. Spermathecal duct long ( Figs. 17–21 ) ......................................................... 2

2. Operculum of median lobe of aedeagus with a mushroom-shaped piece wider than the lateral arms ( Figs. 3–6 ). Sclerites of endophallus ( Figs. 10–12 ), with two lateral pieces sometimes bent but not enlarged apically, and the unpaired central sclerite as broad apically than basally, or broader basally. South-eastern Spain, from Malaga to Alicante .......................................... Lachnaia pseudobarathraea Daniel & Daniel

- Operculum of median lobe of aedeagus with a mushroom-shaped piece as wide as lateral arms ( Figs. 1– 2 ). Sclerites of endophallus ( Fig. 9 ), with two lateral pieces enlarged apically, and the unpaired central sclerite broader apically than basally. North-western Spain: Galicia .................. Lachnaia gallaeca n. sp.

Figures

FIGURES 1 – 8. Median lobe of aedeagi of Lachnaia spp.: (a) lateral view, (b) dorsal view, from the angle pointed by arrows. (1) L. gallaeca from Manzaneda, paratype. (2) L. gallaeca from Sierra de Ancares, paratype. (3) L. pseudobarathraea from Sierra Nevada. (4) L. pseudobarathraea from Tíjola. (5) L. pseudobarathraea from La Sagra. (6) L. pseudobarathraea from Iznájar. (7) L. tristigma from Villanúa-Castiello. (8) L. tristigma from Jerez. Scale bar: 1 mm.

FIGURES 9 – 16. Endophalli of Lachnaia spp. (9) L. gallaeca from Baltar, paratype. (10) L. pseudobarathraea from Sierra Nevada. (11) L. pseudobarathraea from La Sagra. (12) L. pseudobarathraea from Iznájar. (13) L. tristigma from Ayamonte. (14) L. tristigma from Quero. (15) L. tristigma from Teruel. (16) L. tristigma from Valladolid. Scale bar: 1 mm.

FIGURES 17 – 23. Spermathecae of Lachnaia spp. (17) L. gallaeca from Manzaneda, paratype. (18) L. pseudobarathraea from Sierra Nevada. (19) L. pseudobarathraea from Iznájar. (20) L. pseudobarathraea from La Sagra. (21) L. pseudobarathraea from Tíjola. (22) L. tristigma from Jaca. (22) L. tristigma from Jerez. Scale bar: 1 mm.