OF THE HIND WINGS OF HYMENOPTEROUS INSECTS. 



127 



EUMENID^. 



Rhynchium 



Odynerus, fig. 42 . 



ScOLIADiE. 



Scolia, fig. 29 ... . 

 Sphegid^. 



Chlorion (2 species), fig. 33 

 Nyssonid^. 



Stizus, fig. 36 ... . 



Gorytes mystaceus, fig. 37 



Gorytes Natalensis, fig. 38 

 Larrid^. 



Astata BoopsW, fig. 35 



THYNNID.E. 



Thynnus, fig. 27 ... 



Costal nerve branching at the re-junction. 

 .'Distal hooks commencing on the re-junction. 



f Costal nerve branching after the re-junction. 

 1 Distal hooks commencing after branching. 



Lower branch of costal nerve branching before the re-junction. 

 Distal hooks commencing on the re-junction. 



r Costal nerve branching at the re-junction. 



J Distal hooks commencing after the re-junction. 



I Anal nervure enlarged at the base as if to branch, but not actually 

 L branching. 

 B. Upper brancliof the costal nerve marginal, bvit ceasing before the centre, or becoming very- 

 thin. Lower branch rising to the margin (or nearly so) about the centre of the wing. 



ICHNEUMONIDiE. 



Ophion obscurus, fig. 17. 

 Ophion combustus *. 

 Ophion (N. America) *. 

 Paniscus inquinatus t • 

 Paniscus (England), fig. 19 

 Paniscus gJavxopterus . 

 Pitnpla varicornis tt • • 

 Piinpla Turionell(B^-\ . 

 Piinpla (N. America) * . 

 Pimpla (England)*, fig. 20 

 Tryphon^ 



End of upper branch of costal nerve very distinct. 

 End of upper branch of costal nerve very indistinct. 



Membrane of wing appearing above the costal nerve where the distal 

 hooks are situated, but very narrow. 



Ephialtes * 



Has several large and strong hairs irregularly placed near base 

 under costal nerve in externo-medial cell, on membi-ane of wing. 

 Has four similar hairs more regular and in a row. On membrane 

 as above. 

 Rhyssa *. 



Ospj'ywc/eo^Mstj fig- 22. (2 species) Membrane of wing appearing above distal hooks. There is a 



curious appendage (22 a) on costal nerve at base in both speci- 

 mens ; it may be accidental, and the nerve certainly is torn, but I 

 think it is worth looking at more specimens for. Wing bt-own. 



Tragus*, iig. 23 Membrane of wing appearing above the distal hooks; wm^ 6rojw«. 



This wing and Osprynchotus closely resemble each other in colour 

 and veining, and in having two clear, colourless spots in the same 

 situation. The chief difference is between t and *. 

 Membrane of wing appearing above the distal hooks. 

 Membrane of wing appearing above the distal hooks. Upper branch 

 very distinct. Upper margin of wing turned over accidentally "i 

 tt A short or faint branch from the base of the anal nervure. t ^ decided branch from the base of the anal 

 nervure. * A slight indication of branch from the base of the anal nervure. 



Mesostenus t, fig. 16. . . 

 Cryptus, (I) (Europe), fig. 14 



