126 Annals Entomological Society of America [Vol. XI, 



Table of Sclerites and Appendages. 



somites appendages 



Tibicen seplemdecim 7, 8, 9, 10, 11 I, II, III, IV. 



Female t+ ■ t+ t+ t+ + + + + 



s+ s+ s+ s+ 



Male t+ t+ t+ t+ + + + + 



Nolonecta itndidata 



Female t+ t+ t+ t+ t— + + + — 



s+ s+ 3+ s+ s — 



Male t+ t+ t+ t+ t— + + + — 



s+ s+ s+ s+ t — 

 BenacHS griseus 



Female t+ t+ t+ t+ t— + — + — 



s+ s+ s+ s+ t — 



Male t+ t+ t+ t+ t— + + + — 



s+ s+ s+ s+ t — 

 Corixa sp. 



Female t+ t+ t+ t+ t— +* — — — 



s+ s+ s+ s+ s — 

 Anasa tristis 



Female t+ t+ t+ t+ t-|- +* +* +* — 



s+ s+ s+ s+ s+ 



Male t+ t+ t+ t+ t— + + + — 



s+ s+ s+ s+ s — 

 Euschistus variolarius 



Female t+ t+ t+ t+ t— +* — — — 



s+ s+ s+ s+ s — 



Male t+ t+ t+ t+ t— + + + — 



s-|- s+ s+ s+ s — 



d. Neuroptera. — Here. again, among the first of those forms 

 characterized by a complete metamorphosis, we find a more 

 generalized condition than among the Hemiptera, which, 

 although they have an incomplete metamorphosis, stand at the 

 top of the group. Appendage II is lacking, but this is the above- 

 mentioned "mesal" appendage more often absent than present. 



To be sure, somite eleven is apparently entirely wanting, but 

 without embryological evidence one has always a suspicion that 

 parts of this segment may be present in the membrane of the 

 anal lobes. Another point to be noted here, unlike any we found 

 in the Orthoptera, is that the male appendages present almost 

 as primitive a condition as do the female. In fact there is even 

 less specialization in connection with function in the male than 

 in the female. 



Table ov Sclerites and Appendages. 



SOMITES appendages 



Corydalis cornuta 7, 8, 9. 10, 11 I, II, III, IV. 



Female t+ t+ t+ t+ t— + — + + 



s+ s+ s+ s+ s — 



Male :..t+ t+ t+ t+ t— + — + + 



s+ s+ s+ s+ s — 



