2:m\ 



21. Middle <^f tlio riH'iiiaii intfTHiiacf-H of fure wiiigH urii)rf)vided with wliit<! 



RpotB Daiiaida. 



22. Pal])! not ho long aH the tliorax fNaja<l('si 2.'{. 



22. I'alpi iiuirli loii^'cr tlian thf thorax (Hypati) lljpatiis. 



23. Upper surface of tar.si d<!Void of Hpines 2.'». 



23. Upper Hurface of tarsi Hj)iiiy 24. 



24. C.'ell of both wind's closed (Dry ados) 49. 



24. Cell of both wings open (part of I'racfectl) .*{(>. 



25. Second superior subcostal nervulc, thrown out before the fir.-il inferif)r 



subcostal nervule (i. e. before the ap(;x of the cell) 2S. 



25. Second superior subcostal nervule of fore wings arising at or bt;yond the 



first inferior subcostal nervule 2(). 



20. Cell of hind wings open 27. 



2(1. Ctdl of hind wings closed (Haiiiadryadcs) 55. 



27. Last ])alpal joint fully one third the length of the penultimate 



(part of Praefecti) 36. 



27. Last i)alpul joint about one fourth the length of the penultimate 



(part of Arjronaiitae) 30. 



28. The vein closing the cell of fore wings strikes the median nervure either 



nearly or quite as far beyond its second divarication, as half the dis- 

 tance between the base of the first and second median nervules ; or else 

 before the second divarication * part of Praefecti) 36. 



28. The vein closing the cell of fore wings strikes the median nervure op- 



posite, or just beyond its second divarication * 29. 



29. Palpi stout and distinctly tapering (part of AriffOliautae) 30. 



29. Palpi rather slender and of uniform size throughout, excepting of course 



at the extreme tip (Arcbontes) 34. 



30. Hind wings tailed 31. 



30. Hind wings not tailed 32. 



31. Costal nervure of fore wings terminating a little beyond the middle of 



the costal border Coea. 



31. Costal nervure of the fore wings terminating close to the apex. . . Anaea. 



32. Fore wings produced at the apex 33. 



32. Fore wings not produced at the apex Smyrna. 



33. Penultimate superior subcostal nervule running parallel witli the sub- 



costal nervure for half its length, then suddenly diverging from it 



Historis. 



*Iii Anaea, one of the Argonautae, the connecting vein strikes the median nervnre far be- 

 yond its second divarication, but it may at once be distinguislied from the Praefecti of this cate- 

 gory by its excessively short terminal palpal joint, which is not one-eighth the length of the 

 penultimate. 



Two other genera, one of Argonautae {Historis), the other of Praefecti (Ji/nonia), have the 

 cell open, and to them, therefore, neither of these categories are applicable. In the Argonaut, 

 the cell (measuring from its base to the origin of the inferior subcostal nervules) is more than one- 

 third, in the Praefect less than one-third the length of the wing. By these statements, all these 

 forms may readily be referred to their proper groups. 



