Diestramima (Baculitettix) propria apicalis, Gorochov & Storozhenko, 2019

Diestramima (Baculitettix) propria apicalis View in CoL subsp. nov.

( Figs 91–93)

Holotype. Male , Northern Laos, Luong Nam Tha Prov., Nam Thua Distr., Nam Kong Vill., 600 m, X.2017, N. Orlov, L. Ioganssen ( ZIN).

Paratypes. Two females, same data as for holotype ( ZIN) .

Description. Male (holotype). General appearance similar to that of nominotypical subspecies ( Gorochov & Storozhenko, 2015), but body somewhat larger. Colouration greyish brown with almost light greyish brown head having dark brown dorsum and a few darkish marks on rest part (a pair of vertical stripes on epicranium under antennal cavities, two vertical stripes on each gena under eye, lateral areas on clypeus), greyish brown tergites having almost dark brown dorsal part of pronotum and light brown lateral parts of all tergites as well as a few small dark brown marks along posterior edges of these tergites (except for pronotum), and rest of body light greyish brown but with following marks: apical portions of all femora dark brown; hind femur additionally with greyish brown dorsolateral longitudinal area, located on second third of this femur, and with small darkish marks along its ventral outer keel; proximal half of tibia slightly darkened in fore and middle legs but dorsally spotted in hind leg (i.e. with darkened marks between spines); spines of hind tibia also darkened; apex of posteromedian process of seventh abdominal tergite with small light dorsomedian triangle. Rostral tubercles well developed, rather large, with rounded apices and very narrow, deep and long fissure between them; lateral ocelli moderately large (almost intermediate between those pictured in Figs 68 and 79); hind femur with 15–16 ventral inner spinules (except for a pair of small apical denticles); armament of tibiae and tarsi distinguished from that of holotype of D. (B.) p. propria Gorochov et Storozhenko, 2015 mainly by six dorsal denticles on hind basitarsus; abdominal apex (including genitalia) very similar to that of nominotypical subspecies, but posteromedian process of seventh abdominal tergite with somewhat widened apical part having lateral lobules directed more aside (in nominotypical subspecies, this apical part practically not widened, and these lobules directed downwards; for comparison see Figs 88, 90 and 91, 92).

Female. Colouration and structure of body similar to those of male, but mandibles with lateral darkenings, tergites and legs also slightly dark- er (with pterothorax and anterior half of abdomen dorsally almost dark brown, and with legs having somewhat more numerous darkish spots), armament of legs insignificantly varied, seventh abdominal tergite with angular posteromedian tubercle, and paraproct rather simple (i.e. not large, almost triangular and with apical tubercle). Genital plate elongately triangular, with rather narrow apex having small (but not shallow) rounded notch and convex lateral edges of most part of this plate (its basal part with rather small lateral lobules separated from main body of this plate by folds; Fig. 93); ovipositor more or less as in Megadiestramima s. l. but rather long (hind femur approximately 1.5 times as long as ovipositor).

Length in mm. Body: male 32, female 32–34; pronotum: male 9.5, female 9.5–10; fore femur: male 22, female 21–23; hind femur: male 38, female 39–42; hind tibia: male 42, female 43–45; hind basitarsus: male 7.5, female 7.5–8; ovipositor 25–27.

Comparison. The new subspecies differs from D. (B.) p. propria mainly in the characters of seventh abdominal tergite of male listed above (in its description). The both subspecies of this species are known from only their type localities situated in different provinces of Northern Laos: Luong Nam Tha and Xieng Khouang. These provinces are located rather far from each other .