266 



BRITISH ICHNEUMONS. 



\i)phion 



7. STIGMATICUS, Mori. 



8. LOX(nGEXA, y/in/ZlS. 



I.OXGICORNI'^, Bra II US. 



SCUTELLARIS, llioilis. 

 P.KEVICOKMS, Mar/. 



(15). 16. Antennae attenuate, longer than 



body ; temples narrow . . 

 (4). 17. Mandibular teeth obtuse and very 



short ; scutellum often margined. 

 (ig). 18. Head posteriorly broader than eyes ; 



face apically parallel 

 (18). 19. Head posteriorly not broader than 



eyes ; face apically constricted. 

 (23). 20. Antennae attenuate, slender and not 



shorter than body. 

 {22). 21. Stigma white-marked; antennae of 



(J half as long again as body . . 

 (21). 22. Stigma all testaceous; antennae of 



^ not longer than body . . 

 (20). 23. Antennae subfiliform, stout and short- 

 er than bod}- 

 (3). 24. Mesonotum with four distinct bright 



flavous lines. 

 (26). 25. Nervellus subopposite ; metanotal 



transcarina strong 

 (25). 26. Nervellus postfurcal ; metanotal 



transcarina wanting 

 (2). 2^ . Wings flavescent ; petiolar mem- 

 brane extending to centre 

 (i). 28. Radius basally strongly curved and 



incrassate. 

 {}^2). 29. Base of radial ncrvure simply curved, 



not bisinuate. 

 (31). 30. Mandibles vertical ; petiole black 



[Erkmotylus, Forst.] . . 

 (30). 31. Mandibles horizontal ; petiole fiavous 



[Stauropodoctonus, Brauns.] 16. 

 (29). }i2. Base of radius strongly bisinuate 



[Ali.ocamptus, Thoms.] . . 17. 



1. Mocsaryi, Brauns. 

 Ophion Mocsaryi, Brauns, Arch. Nat. Meckl. 1889, p 89. 



Head constricted behind eyes, which are contiguous with both ocelli 

 and mandibular base; epistoma laterally subsulcate ; orbits flavous. An- 

 tennae about as long as body. Thorax somewhat shining ; both trans- 

 carinae of metanotum distinct and elevated, connected on either side of 

 their centre by a longitudinal carina, forming a distinct areola, with 

 externally unbounded transverse lateral areae ; petiolar area large and 

 discreted, with hardly a trace of longitudinal striae. Legs red and 

 normally stout. Stigma centrally very pale testaceous, whitish at both 

 extremities ; basal and discocubital nervures strongly convergent, with 

 elongate nervelet ; lower basal nervure antefurcal ; nervellus intercepted 

 slightly below its centre. Length, i3-i4.mm. (Brauns) or 15-17 (British). 

 9 only. 



Brauns appears to have described a single unsexed example differing 

 from O. cos/a/as, Ratz., in its smaller size, opposite nervellus, geniculate 

 discocubital nervure and the nervelet ; and from his own O. areolaris in 

 the immaclate testaceous mesosternum and distinct basal metanotal 

 transcarina. 



It is our only .species with distinct areola. 



13- 

 14. 



15- 



OP.SCURLS, Fah. 

 :\nNUTUs, Kriccli. 

 VENTRICO.SU.S, Grav. 



MARGINATUS, Grav. 

 BOMHYCIVORU.S, G rav 



UNnuLATU.s, Grav. 



