Megadiestramima (Neodiestramima) orlovi lata, Gorochov & Storozhenko, 2019

Megadiestramima (Neodiestramima) orlovi lata View in CoL subsp. nov.

( Figs 71–74)

Holotype. Male, Central Thailand, Nakhon Ratchasima Prov., environs of Khao Yai National Park , 500–1000 m, secondary forest, among dry leaves on forest floor at night, 26.X–4.XI.2000, A. Gorochov, L. Anisyutkin ( ZIN).

Paratypes. Six males, 9 females, same data as for holotype ; 1 female, Central Thailand, Trat Prov., Chang I. in Siam Bay (= Gulf of Siam ), low mountains with primary forest near sea, on stones near brook at night, 5–20.XI.2000, A. Gorochov, L. Anisyutkin ( ZIN) .

Description. Male (holotype). Colouration and structure of body very similar to those of nominotypical subspecies but with some small differences. General colouration darker, light brown with almost brown dorsal half of body: anterior part of head under eyes and antennae with three pairs of larger greyish brown marks (large medial areas reaching lateral parts of clypeus and having light spot near each antennal cavity, oblique stripe on each gena not interrupted near eye, and small spot between these marks); head dorsum and tergites brown with poorly distinct small lightish marks; legs with greyish brown apical portions of femora and darkish marks on rest parts of femora and on tibiae (in M. o. orlovi , latter darkish marks developed only on hind legs). Lateral ocelli very large, their diameter almost twice as great as in nominotypical subspecies (for comparison see Figs 68 and 74); hind femur with 11 inner ventral denticles (except for a pair of apical ones); armament formula of tibiae and hind basitarsus more or less similar to that of this subspecies [dea, v~2, v~2, v3a / d2a, v~2, v~2, v3a / d91e-92i (d84e-95i), 2sa, 6a / d1c, dac]; inner dorsal spur of hind tibia almost reaching apex of dac (in M. o. orlovi , this spur somewhat not reaching it); posteromedian process (spine) of seventh abdominal tergite similar to that of nominotypical subspecies in length and in shape of apical part (narrowly rounded, almost acute), but this process having wider proximal part ( Fig. 71); paraprocts somewhat shorter than in M. (N.) o. orlovi , approximately 1.5 times as long as posteromedian process of seventh abdominal tergite ( Fig. 72); genitalia practically indistinguishable from those of this subspecies.

Variations. Sometimes apical portions of femora dark brown, and distal half of hind femur almost completely greyish brown with narrow lightish ring separating darker (apical) portion. Armament of legs also very slightly variable.

Female. Body very similar to that of males in colouration and structure of body, but sixth abdominal tergite with very short posteromedian lobe (this lobe in male moderately short), seventh abdominal tergite also with distinctly shorter but spine-like posteromedian process having apex narrowly rounded or truncate, and paraprocts more similar to those of previously decribed females of Megadiestramima s. str. Genital plate with apical part rather widely and roundly truncate but with shallow or small posteromedian notch (this notch varied from angular to almost rounded; Fig. 73); ovipositor rather similar to that shown in Fig. 50.

Length in mm. Body: male 24–29, female 25– 27; pronotum: male 7.5–8.5, female 8–9.5; fore femur: male 20–22, female 19–23; hind femur: male 35–38, female 36–42; hind tibia: male 40–44, female 41–47; hind basitarsus: male 7.3–8, female 7.5–8.5; ovipositor 19–24.

Comparison. Differences of this subspecies from nominotypical one are given in the key above.

Etymology. This subspecies name is the Latin word “lata” (wide) given in connection with the characteristic shape of the posteromedian process of seventh abdominal tergite in male.