Stinoplus lapsanae Graham, 1969

Measurements. Body length: 1.9 mm, maximum width: 0.8 mm (n=1) ex gall T. lampsanae .

Description. Whitish; integument smooth and almost glabrous with a row of very short spiniform setae on each thoracic segment; body subrectangular, 2.3× as long as broad (Figs 4 H, 5H); anal segment truncated, broader than long; body (lateral view) not ventrally curved (Fig. 5 H); intersegmental areas visible; ventral margin of body segments strongly convex (Fig. 5 H).

Head (anterior view) (Fig. 6 H) rounded, 1.05× as broad as high; upper margin and medial area of vertex also rounded; with some pairs of setae but very short and indistinct; antero-medial setae of antennal area slightly above antennae; clypeal and latero-clypeal setae very short, situated at different levels between antennae and clypeus, being closer to clypeal area; antennal area and antennae conspicuous and nipple-shaped; ventral margin of clypeus straight; labrum rectangular, 2.6× as long as wide (Fig. 7 H).

Mouth parts (Fig. 7 H). Maxillae triangular, differentiated from labium, with one pair of very short setae on each maxilla; maxillary palps not visible; labium concave and collapsed, with a pair of inconspicuous setae.

Mandibles (Fig. 8 D) clearly visible externally; tooth 1.35× longer than wide measured at its base; apex sharp and slender; angle separating inner side of tooth and base of mandible nearly 90º with outer margin relatively convex.

Biology. The small genus Stinoplus Thomson currently includes eight species (Graham 1969; Noyes 2011; Askew 2011). It is only associated with cynipid galls on herbs and shrubs of different species in the Palaearctic region (Askew et al. 2006) (Fig. 9 J). The terminal instar larva (Fig. 9 K) is a specific primary ectoparasitoid of T. lampsanae .

Material examined. ex gall T. lampsanae on Lapsana communis (Asteraceae), Spain, Madrid: El Escorial (17/ 09/2005) (J. L. Nieves leg.) (n=1).