A. spanner Yu & Yang, sp. nov.

(Figs 38–47)

Type material. Holotype, ♂, Kuankuoshui Nature Reserve, Guizhou, 13. August. 2010, collected at light by Xiaofei Yu.

Length: ♂ 3.9mm.

Crown yellowish (Fig 38). Ocellus surrounded with off-white stripe (Fig 40). Coronal suture brownish, not reaching apex of crown (Fig 38). Face yellowish (Fig 39). Pronotum with irregular spots at anterior margin, semitransparent posteriorly (Fig 38). Scutellum yellowish (Fig 38). Forewing yellowish, semitransparent; hindwing hyaline (Fig 38). Abdomen yellowish. Legs yellowish except claws brown.

Male ventral abdominal apodemes protruding into segment 7 (Fig 41). Male pygofer with setae; ventral pygofer appendage curved, with dense pubescence, beyond pygofer; dorsal bridge less than 1/3 length of pygofer (Fig 42). Subgenital plate exceeding pygofer, with 2 rows of 22 macrosetae, 3 rows of ca.32 long and feeble microsetae, ca.25 marginal microsetae and 5 basal group macrosetae (Fig 43). Paramere elongate, sinuate, apex with few teeth, with setae and sensory pits subapically (Fig 44). Aedeagus expanded from midlength to apex and apically emarginate in dorsal view (Figs 45, 46). Anal tube process spanner-shaped, two processes nearly equal length (Fig 47). Connective longer than wide with shallow posterior emargination.

Etymology. The new species name alludes to anal tube process branched and spanner-shaped.

Remarks. The new speices is similar to A. falcatus Sohi & Dworakowska, but it is different from the latter in having the pygofer appendage with dense pubescence (Fig 42) and the anal tube process branched and spannershaped (Fig 47).