Calosega flavipes (Kimsey, 1995) comb. nov.

(Figs 1–4)

Perissosega flavipes Kimsey, 1995: 594 . Holotype ♀; type locality: Thailand, Khao Yai Natl. Park (CNC).

Holotype ♀, “ THAILAND: 180km N.E. Bangkok, Khao Yai N.P., 780m, 11-18-IV-1990, M. T., Moist Semi Evergreen Forest, B. V. Brown ”, “ HOLOTYPE, Perissosega flavipes Kimsey ”, “ HOLOTYPE Perissosega flavipes Kimsey, CNC No. 22205”, “ CNC, 957622” (CNC, photos examined).

Remarks. 2r-rs 2 v is almost straight and the dark streak of Rs 2 v is also almost straight, but the connection is strongly arced (Fig. 1). It appears similar to those of Perissosega and other related genera. However, as indicated by Kimsey (1995), other important characters do not match the diagnosis of Perissosega (Krombein, 1983; Kimsey & Bohart 1991). The absence of a smooth strip on vertex (Fig. 3), the well-developed and not-excavated vertex, the presence of a complete omaulus and posterior oblique sulcus (Fig. 2), and also the presence of a dorsal carina on metacoxa (Fig. 4) are common with Isegama among the genera known in the Indo-China region. However, the presence of postero-medial pit on pronotum and the developed posterior propodeal tooth places this species in the genus Calosega .

The general habitus, and the smaller and sparsely located punctures of the body are similar to Calosega kamiteta Terayama, 1999; however, C. flavipes is distinguished from C. kamiteta by the wider flagellum, F2 2.0 × wider than long (F2 1.5 × wider than long) and the unique condition of Rs 2 v (Rs 2 v is normal in C. kamiteta, the 2r-rs 2 v and dark streak of Rs 2 v is weakly curving, the connection does not from a strong arc).