Pristiphora inthanoni Smith, 2011

Smith, David R., 2011, Nematinae (Hymenoptera, Tenthredinidae) of Thailand, with notes on some other southeastern Asian nematines, Journal of Hymenoptera Research 22, pp. 1-27 : 13-14

Pristiphora inthanoni Smith sp. n. Figs 15, 16 22

Description.

Female. Length, 5.0 mm. Antenna black, scape and pedicel and undersurface of flagellomeres 1 and 2 brown. Head black with supraclypeal area, clypeus, and labrum brown; mouthparts white. Thorax black with postspiracular sclerite, and tegula white; posterior margin of metapleuron white. Legs white, apical ring on hind tibia black. Abdomen black above; tergites 2 to apex with narrow white posterior band; venter white except apical 3 sternites and sheath black. Wings hyaline, veins and stigma black.

Head and body shiny, finely punctuate, covered with fine white pubescence. Antennal length 2.8 × head width; 3rd antennomere equal in length to 4th antennomere. Malar space equal to about half diameter of front ocellus. Distance between eye and hind ocellus about 0.9 × distance between hind ocelli. Postocellar area about 3.0 × broader than long. Lower interocular distance slightly longer than eye height. Forewing with intercostal crossvein present, interstitial with M; 4 cubital cells (vein separating first two faint). Pulvilli small, on tarsomeres 1-4. Hind basitarsomere subequal to length of remaining tarsomeres combined; inner hind tibial spur about 0.5 × length of basitarsomere and slightly longer than width of hind tibia at apex. Tarsal claws with long inner tooth, slightly shorter than outer tooth. Sheath broadened at apex, with rounded distinct lateral scopae (similar to Benson 1958, fig. 414). Lancet ( Fig. 22 ) with 14 serrulae, serrulae diminishing in size toward apex and apical portion without serrulae; basal 7 serrulae rounded, becoming flatter toward apex, subbasal teeth absent; annuli curved, each with band of stout spines; spines on upper half of annuli 1 and 2, complete on annuli 3 and 4, on lower half or less of annuli 5-11, and absent at apex.

Male. Unknown.

Holotype.

Female labeled "THAILAND Chiang Mai, Doi Inthanon NP, Checkpoint 2, 18 °31.554'N, 98 °29.940'E, 1700 m, Malaise trap, 24.xi-1.xii.2006, Y. Areeluck leg., T1870" (QSBG).

Etymology.

The species name is derived from the type locality, Doi Inthanon National Park.

Discussion.

The lancet with rounded serrulae at the base becoming flatter toward the apex and absent at the extreme apex, the white legs and venter of the abdomen, and mostly black pronotum are characteristic for this species. It is similar to Pristiphora ettera in color except for the mostly black pronotum and brown clypeus and supraclypeal area. The color is also similar to Pristiphora formosana , but the lancet of Pristiphora formosana lacks annular spines or hairs ( Wong 1977: fig. 20).

Figures

Figures 14 - 16. Pristiphora, holotypes 14 Pristiphora ettera, lateral view 15 Pristiphora inthanoni, lateral view 16 Pristiphora inthanoni, dorsal view.

Figures 21 - 25. Pristiphora lancets 21 Pristiphora ettera 22 Pristiphora inthanoni 23 Pristiphora annetna 24 Pristiphora phahompoki 25 Pristiphora borneensis.