Scambus

Çoruh, S. & Özbek, H., 2008, A faunistic and systematic study on Pimplinae (Hymenoptera Ichneumonidae) in Eastern and Northeastern parts of Turkey, Linzer biologische Beiträge 40 (1), pp. 419-462 : 430

Key to species of Scambus

1 Profemur without or with barely distinct impressions beneath ( fig. 20b )...........................2

- Profemur distincty impressions beneath ( fig. 20a,c )..........................................................4

2 Scapus black, pedicel and coxae black in males, trochanters yellow usually with a black base; metatibia brown with black ring ( fig.18a ); ovipositor sheath as long as abdomen or shorter than abdomen ......................................... S. brevicornis GRAVENHORST

- Scapus, pedicellus, pro and mesocoxae yellow in males; metatibia different; ovipositor long.....................................................................................................................................3

3 Mesopleura white and dull; metatibia with a diffuse basal and apical brownish spot; rarely brown or black; last 3 metatarsomeres comletely brown ( fig.18d ) ............................. ..................................................................................................... S. vesicarius RATZEBURG

- Mesoplura without feather and shining; metatibia with black rings basally and apically; last 3 metatarsomeres with a light base and dark apex ( fig.18b ) .......... S. foliae (CUSHMAN)

4 Metafemur with one impression beneath in males ( fig16b )................................................5

- Metafemur with 2 impressions beneath in males ( fig. 20a ).................................................6

5 Portibiae quite strongly swollen in apical half and clearly angularly curved in the middle ( fig. 16b ), nervellus intercepted at below its middle ( fig. 16c ) ................................. ..................................................................................................... S. nigricans (THOMPSON)

- Portibiae not quite strongly swollen in apical half and clearly angularly curved in the middle, base and apical of metatibiae black, tarsal claws black ( fig. 18c ) ...........…….. .. S. sagax HARTIG

6 In female scapus black, pedicellus and first 2 flagellomerus yellow; procoxae mostly black, base and middle of metatarsomeres yellow; first abdominal tergite transversal and comletely punctate....................................................................... S. signatus (PFEFFER)

- In female scapus and pedicellus yellow or black, first 2 flagellomerus dark brown; procoxae brown, base and middle of metatarsomeres black or not; first abdominal tergite not transversal and not punctate...............................................................................7

7 Head narrowed backward, postgenae not swollen ( fig. 19a ); scapus and pedicellus yellow; base of metatibiae not yellow rings; mediolongitudinal carinae propodeum often visible; abdomen black or brownish, first tergite and posterior margins of tergites II-IV always black; ovipositor sheath 1.2-1.6 times as long as abdomen ............................................................................................................................... ................................................................................................. S. calobatus GRAVENHORST

- Head not narrowed backwards, postgenae swollen ( fig. 19b ); scapus and pedicellus black; base of metatibia yellow rings; mediolongitudinal carinae propodeum barely visible; abdomen completely black; ovipositor sheath 1.6 times as long as abdomen ... .............................................................................................................. S. planatus HARTIG

Figures

Fig. 20a-c: Profemur: (a) S. calobatus, (b) S. foliae, (c) S. sagax.

Fig. 18: Hind leg: (a) Scambus brevicornis, (b) S. foliae, (c) S. sagax (d) S. vesicarius.

Fig. 16a-d: Scambus (A.) nigricans (): (a) Areolet and II. intercubitus, (b) Profemur and protibia, (c) Nervellus, (d) Apex of ovipositor.

Fig. 19a-b: Head: (a) Scambus calobatus, (b) S. planatus.