P<7n /sens'] 



UKiriSl! ICHNEUMONS. 



289 



(10). 



Table of Species. 



Basal nervure continuous ; occipital 

 costa wanting- [ P A R A i! .\ r u .'^, 

 Thorns.]. 



Head small; thoracic spiracles circu- 

 lar : terebra exserted. 



Arcolet entire ; stii^ma rufrscent ; 

 leng'th, 8 mm. 



Areolet incomplete; siij^ni.i ni^re,-,- 

 cent ; lent^-th, 6 mm. 



Head as broad as thorax ; spir.icles 

 oval ; terebra not exserted. 



Thorax broadly black-marked ; peti- 

 ole elongate 



Thorax not black-marked ; peut)le 

 shorter and stout. 



Metanotal carinae wanting; scutel- 

 lum not apically carinate 



Metanotal carinae distinct ; scutt4- 

 lum strongly carinate 



Lower basal nervure postfurcal ; occi- 

 pital costa distinct [Paniscus, 

 Thorns.]. 



Head posteriorly distinctly narrower 

 than eyes ; vertex narrow. 



Front tarsi basally straight ; stigma 

 testaceous. 



Anus determinately deep black ; 

 vertex narrower 



Anus not deterniinatel}' black ; \erlex 

 broader 



Front tarsi basally strongly curved; 

 stigma stramineous 



Head posteriorly as broad as eyes ; 

 vertex broad. 



Ocelli remote from ej'es ; thoracic 

 transcarina obsolete. 



Head broader than eyes ; antennae as 

 long as body 



Head not broader than eyes ; an- 

 tennae shorter than body 



Ocelli contiguous with eyes; thoracic 

 carina strong 



1. lAKSA 1 IS, Jirisc/i. 



2. .\I(!RICAR1'["S, 'J'liums. 



3. \'IK(!AHS, Fuiirc. 



4. I, A 1 IXCILI.A, Jlioins. 

 V CRisr.viLS, Tlwms. 



6. .MF.I.AMRUS, 'J'linnn. 

 -. 1 KM At 1:1 s, Cm:'. 

 8. GRACILIl'ES, r/ioms. 



9. FL'SCICORNIS, IIi)ll)liir. 



10. IIRACUVCKRLS, TIlODIS. 



11. CKPHALOTE.S, Hoi III vr. 



'riicrc appears small reason lor regarding llic s])i'cics here grouped as 

 coiislitiiliii.L; two genera, tlioiigli Ptvabaliis ptjssesses just those distinctions 

 so iiseiul as main divisions of a single one. Thus the basal nervure is 

 rarely directly coniinuoiis through the median; in /'. nii^ricarpus it is 

 ahvavs subpostfurcal and in /-*. Fraiiki it is strongly anleturcal ; isolated 

 e\anii)les of P. irislalus have it subjK)slfiircal, and these arc c.\lrem(4v 

 closiiv allied to small /■*. ojuuiilus, in whicli it varies from onlv subpost- 

 furcal to very far beyond the junction of the ui)per basal nervure with the 

 median ; nor is the occipital costa a constant character. Care must also 

 be exercised to avoid confusion with tlie very similar Tryphtmids, Pcri/is- 

 sus pallidiis, Piioiio/xuiii s/n/iai and Jfiso/(/>/t/s hs/actiis, all of which an- 

 known 1)\ their basalh' straight external radius, two by llu'ir simple tarsi 

 and tlie third by its curved upper basal nervure. 



