Neolinycus HEINRICH

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 : 1457-1458

8. Neolinycus HEINRICH

Neolinycus HEINRICH 1971 - Nat. Canad. 98: 1025-1026.

Type species: Neolinycus michaelis HEINRICH.

Neolinycus: HEINRICH 1977 - Ichn. Florida and Neigb. States 9: 280.

D i s t r i b u t i o n: Nearctic (southeast).

I n t r o d u c t i o n:

From other genera with small and circular spiracles it is differed by number of characters: from Cyclolabus HEINRICH (also from Apaeleticus WESMAEL ) by superficial gastrocoeli and thyridia, from Apaeleticus WESMAEL in addition by not cellular structure of propodeum, by coriaceously-wrinkled middle field of postpetiolus and not protrude middle field of face, from Linycus CAMERON and Ectopius WESMAEL by peculiarities of a head structure, with strongly reduced, practically absent temples, by rhomboidal areolet (distinctly 5-angled of Linycus and Ectopius ) and by structure of gastrocoeli, which not as at last genus marked by longitudinal impression, but by very strongly and characteristically irregularly-wrinkled slight impression.

It is close to oriental genus Cyclolabellus HEINRICH from which it is differed also by distinctly and deeply impressed sternauli, by impressed in front third notauli, by shorter propodeum with area superomedia which is wider than length and with distinct costulae and by slightly impressed gastrocoeli and thyridia.

M o r p h o l o g y:

F l a g e l l u m: Bristle-shaped, slender, with white semiannulus, scarcely widened beyond middle and slightly flattened ventrally, strongly attenuated toward apex. Flagellum equal by length to front wing. Flagellum of males without tyloides.

H e a d: Head contour from front roundish, strongly narrowed downwards, eyes very large; temples from above very short, roundly narrowed backwards; occiput and temples abrupt just after the eyes and ocelli to occipital carina. Occipital carina dorsally atrophied, meeting with hypostomal carina far from mandible base; mandibles behind base strongly straightly narrowed with very small lower tooth; clypeus strongly convex relative to lower level of lateral fields with straight front margin; antennal cavities moderately impressed, without tubercle between antennal fossae; ocellar triangle slightly elevated. Surface of clypeus, face and frons densely punctured with microsculpture.

T h o r a x: Transverse furrow of pronotum not interrupted by keel; pronotal ridge not thickened; pronotal base strongly sinuous. Mesonotum strongly convex, of equal length and breadth, notauli distinct in front third; surface of mesonotum densely punctured, with microsculpture; subalarum thin, but not sharpened; sternauli distinct up to middle of mesopleurae; scutellum slightly convex, gradually sloping to postscutellum, laterally carinated up to apex. Hind margin of metanotum with triangular projections. Propodeum from lateral gradually slanting to apex, horizontal part considerably shorter than area posteromedia in middle; carinae of propodeum, with exception of coxal carinae, distinct; area superomedia hexagonal, wider than length, costulae developed; area dentipara with distinct denticle at apex; spiracles small, circular. Surface of propodeum delicate wrinkled.

L e g s: Moderately long and slender.

W i n g s: Areolet quadrangular, radial cell broad; nervulus interstitial. Front wing shorter than body.

A b d o m e n Longish-oval, flattened dorso-ventrally; second tergite transversal. Petiolus distinctly flattened, from lateral almost straight, lateral carinae distinct, from above petiolus gradually broadened to postpetiolus; middle field distinctly elevated. Gastrocoeli shallow, thyridia distinct, removed from base of second tergite, transverse, interval approximately equal to breadth of thyridia; lunulae distinct. Hypopygium with longitudinal fold and membranous apex.

C o l o r a t i o n: Body of females ferruginous with white coloration.

S i z e: 5mm.