Pachyjoppa tibialis CAMERON

A. M, 2009, Illustrated key to the tribes of subfamilia Ichneumoninae and genera of the tribe Platylabini of world fauna (Hymenoptera, Ichneumonidae), Linzer biologische Beiträge 41 (2), pp. 1317-1608 : 1515-1516

Pachyjoppa tibialis CAMERON (Plate 51)

Pachyjoppa tibialis CAMERON 1901 - Ann. Mag. Nat. Hist. 7: 375, ♀. Pachyjoppa tibialis: HEINRICH 1974 - Ann. Zool. Wars. 32 (8): 136-137, ♀,Ƌ. F e m a l e

F l a g e l l u m: Bristle-shaped, with 38 segments, almost not widened beyond middle, very slightly flattened ventrally and gradually attenuated toward apex, without white annulus; basal segments moderately long, segments 1-11 with oblique apex, first segment 3,8 times longer than width at apex, segment 18 square laterally. Flagellum 1,2 times shorter than the front wing and approximately equal to body length.

H e a d: Head contour from front almost rectangular, slightly transversal, 1,2 times wider than height; genae slightly narrowed toward mandibles, long, 3,7 times shorter height of eye; head contour from above rounded, slightly transversal, only 1,5 times wider than length. Vertex behind hind ocelli gradually slanted from lateral to very high occipital carina; temples from above straightly narrowed behind eyes, from lateral not narrowed downwards, long, equal by length to longitudinal diameter of eye in middle; occipital carina from above almost straight, not impressed to hind ocelli, meeting with hypostomal carina far from mandible base; genae very long, but only just longer than mandible base width; mandibles with form character to tribe, sharply narrowed from base to middle, from middle to apex parallel sided; clypeus strongly convex with straight front margin and broadly rounded lateral corners, transversal, strongly protrude in front relative to face surface, not separated from face by distinct suture; clypeal foveae very deep, large, rounded; labrum long, protrude from under clypeus, wide, rounded; middle field of face expressed, but very slightly elevated above lateral fields; antennal cavities very large, deeply impressed, almost reach margins of eyes, with rounded tubercles laterally and with distinct sharp tooth between antennal fossae, front margins of antennal fossae high elevated; ocelli of moderate size, relatively slightly convex, diameter of lateral ocellus 1,4 times less than distance from ocellus to eye; ocellar triangle expressed. Surface of clypeus with big superficial punctures, interspaces less than diameter of punctures, without microsculpture, middle field of face superficially wrinkled, middle fields sparse delicate punctured, shining.

T h o r a x: Collar of pronotum short, transverse furrow shallow. Mesonotum moderately convex, slightly longer than width; notauli not developed, marked by only just visible impressions at base; surface of mesonotum very densely punctured with very slight shine; subalarum high, narrow; speculum with sparse punctures, shining; area of mesopleural fovea broadly and deeply impressed; sternauli absent; lower part of mesopleurae with angular bend; mesopleurae longitudinally striated; scutellum very high, with sharp lateral carinae, sharply abrupt to postscutellum, its horizontal part with blunt, pointed backwards elevation, punctured by big smoothed punctures, shining; vertical part extremely densely wrinklypunctured, without microsculpture. Hind margin of metanotum with distinct triangular projections. Propodeum from lateral sharply angle-shaped; horizontal part some shorter than length of area posteromedia in middle; propodeum with distinct areas; carinae of propodeum developed, with exception of costulae and coxal carinae; area superomedia high elevated above lateral fields, elongated, widened in front, with cellular surface; areae dentiparae at apex with apophysises strongly bend upwards; first pleural area with large slit-shaped spiracles, equal 0,5 breadth of area at place of spiracle, strongly broadened and situated almost at horizontal plane. Horizontal part of propodeum very densely punctured, with cellular sculpture, matt; metapleurae very densely punctured, slightly shining.

L e g s: Long, but rather strong. Claws long, slightly curved.

W i n g s: Areolet quadrangular, asymmetrical (external vein of base longer than internal, а external vein of apex shorter than internal); stigma narrow, but broad at base; radius sharply curved at apex (strongly sinuate), long; radial cell narrow and long; nervulus postfurcal; ramulus long; stigma and all veins yellow, membrane of wing intensively yellow, apex of front wings darkened. Length of front wing equal to body length.

A b d o m e n Fromabove uniformly longish-oval; second tergite shorter than breadth at apex; apical tergites not hidden, distinctly visible from above; sheath of ovipositor from above only just protrude. Petiolus flattened, long, from lateral with sharp bend to postpetiolus and strong lateral carinae, interspace between them with strong ribs, sternite also with very strong ribs; from above petiolus gradually broadened to postpetiolus; postpetiolus long, distance between spiracles less than distance from spiracles to apex of tergite; middle field not limited; postpetiolus shining with only just visible rugosity. Gastrocoeli deep, short, triangle; thyridia not distinct, closed to base of tergite, interval punctured; lunulae absent; second tergite in middle densely and roughly punctured, intervals narrower than punctures, slightly shining; tergite 3 more delicate punctured shining, 4th with sparse punctures; tergites 2-3 sharply separated. Hypopygium from below strongly pointed, with longitudinal fold in middle.

C o l o r a t i o n: Body completely yellow, wings yellowish; black: flagellum, apex of hind femora, hind tibiae and tarsi; apex of front wings darkened.

S i z e: Body length: 12,3; front wing: 13,2; flagellum: 11,0 mm.