BRITISH ICHNEUMONS. | Exochus 

32 
Table of Species. 
(24). 1. External areae confluent with denti- 
paral, z.e., costulae wanting; in- 
termediate calcaria of equal 
length [TRICLISTUS, Thoms. ]. 
(23): 2! Areolet. more or less distinct [TRI- 
CLISTUS, Forst.]. 
(22). 3. Face and thorax immaculate black ; 
areolet subtriangular, 
(21). 4. Areola parallel-sided; metanotum 
double length of petiolar area. 
(12). 5. Basal segment distinctly longer than 
apically broad; stigma emitting 
radius from centre. 
(9). 6. Areolet subsessile; face dull and very 
closely punctate. 
(8). 7. Basal segment slightly longer than 
broad; coxae black 
(7). 8. Basal segment much longer than 
broad; legs entirely pale 
(6). 9. Areolet ‘strongly petiolate ; face 
nitidulous and sparsely punctate. 
(11). 10. Length less than 5 mm. Ke 
(10). 11. Length at least 5 mm. 
(5). 12. Basalsegment not longer than. broad; 
stigma emitting “radius beyond 
centre, 
(20). 13. Hind femora rarely black; meta- 
thoracic spiracles larger. 
(15). 14. Flagellum basally red; hind tibiae 
white, apically black ae 
(14). 15. Flagellum black above; hind tibiae 
rufescent throughout. 
(17). 16. Areolet sessile, emitting recurrent 
nervure from centre 
(16). 17. Areolet petiolate, emitting recurrent 
nervure from beyond its centre. 
(19). 18. Calcaria elongate; areolet triangu- 
lar and shortly petiolate .. 
(18). 19. Calearia short; areolet oblique and 
elongately petiolate 
(13). 20. Hind femora black; metathoracic 
spiracles smaller < 
(4). 21. Areola apically explanate; meta- 
notum not twice length of postica 
(3): 22. Face and thorax flavous- marked ; 
areolet pentagonal 
(2). 23. Areolet entirely wanting [ AMESOLY- 
TUS, Forst. ] Pe o : 
(1). 24. External areae discreted from denti- 
paral, z.e., costulae present [Ex- 
OCHUS, Forst.]. 
(26). 25. Frontal carinae and areolet distinct 
[TRICLISTUS, part., Thoms. ] 
(25). 26. Frontal carinae and areolet wanting 
[ExocuHus, Holmgr.]; intermed- 
late calcaria strongly unequal 
[Exocuus, Thoms. ], 
ite, 
12. 
rs, 

. PODAGRICUS, Grav. 
. PALLIDIPES, Hlolmeg. 
. NITIDIFRONS, Zhoms. 
. CURVATOR, Fad. 
. GLOBULIPES, Desv. 
. LONGICALCAR, Zhoms. 
. CONGENER, Hlo/mgr. 
. SPIRACULARIS, Zhoms. 
. AETHIOPS, Grav. 
. LATIVENTRIS, Zhoms. 
ANTIQUUS, Had. 
NIGER, Bridg. 
SQUALIDUS, Hlolmgr. 
