Ammoplanus (Ammoplanus) rjabovi, Gussakovskij

Boucïek, Zdenek, 2001, Palaearctic species of Ammoplanus (Hymenoptera: Sphecidae), Journal of Natural History 35, pp. 849-929 : 911-912

A. (Ammoplanus) rjabovi Gussakovskij

Ammoplanu s rjabovi Gussakovskij, 1931: 449 ±451. Russia (Daghestan): Khodjal-Makhi. Syntypes. Lectotype female, designated by Marshakov, 1976; in ZMAS (4 syntypes examined).

Diagnostic characters

Male. Facial markings white, including sides of the clypeus but scapes anteroventrally slightly yelllowish. Pterostigma bicolorous: whitish in proximal third, rest dark, blackish. Face with orbital fovea (®gure 48) weak, narrow; depression outside upper margin of each torulus shallow, ¯at at bottom, or even indistinct. Middle part of clypeus diOEerent from female: transformed into a ¯at plate submedially almost or quite as long as torular diameter, median tooth ¯at and thin on margin, subtriangular to truncate, not long (®gure 48). Labrum subtruncate at apex, unpigmented areas broader than long. Mandibles slightly sinuate, without inner tooth, outer apical tooth sharp. Underside of head mostly with distinct long depression along sides of oral fossa, not limited to oval areas as in female. Antennae long, middle ¯agellar segments almost twice as long as broad, appearing bare except for very short pilosity at apex; placoid sensilla very dense (®gures 122, 123).

Hind tibia slightly smoothly dilated in middle.

Sternites 2±4 almost bare except for a few hairs in hind corners of sternites 3 and 4; all three shiny, with ®ne transverse microstriation. Sternite 5 large, its central part concave, its hind margin subangularly produced, its broad central part slightly raised and beset with moderately dense and coarse piliferous punctures bearing setae (®gure 120) which are at sides as long as half length of the sternite and at apex kinked, hook-like, pointing slightly mesad or caudad; they become much shorter towards middle and posteriorly (®gure 50). Sixth sternite less than half as long as sternite 5, dull and with short pilosity except medially where it is bare, shiny and rising towards apex. Hind basitarsus only moderately widened in middle on outer side (®gure 43).

Female. Upper frons in middle with shallow but distinct furrow, on sides with deep narrow orbital fovea. Space between toruli subequal to distance between torulus and eye; a deep depression outside each torulus expanding diagonally dorsad of torulus. Clypeal tooth long and narrow, truncate at apex. Mandibles on upper edge in three-quarters of length with low additional upper tooth which is either blunt or obtuse-angular; lower edge sinuate, longer tooth appearing sharp in facial view (®gure 48) but is ¯at and broadly rounded in ventral anterior view. Underside of head with a broad pit somewhat similar to A. hoOEeri, but deeper, placed more anteriorly (present only in females?), and with groove-like depression along carinate margin of oral fossa, strongest and subdivided by some cross-rugae in median part. Pronotal collar without strong shoulders, rounded, regularly transversely reticulate including ¯at broad area sloping at about 45ss to pronotal neck. Scutellum very shiny, in contrast with dull mesoscutum. Pygidial area with sparse deep puncturation.

Material examined. Greece (Ipiros): Katara Pass , 2 land 1m, 28 July 1979 (Day, Else and Morgan; BMNH) . Russia (Daghestan, NE Caucasus Mts.): Khodzhal-Makhi , 3 l(two headless) and 1m, paralectotypes, 1 l(`cotype’ 5 paralectotype), all 28 June 1926 (Rjabov; ZMAS: 1 lMNHN) . Israel: Har Dov, Brith haBtarim, 1700 m, 1m, 17 July 1975 (A. Freidberg; TAUI) .

Distribution. Greece, South Russia (Daghestan), Israel.