334 ME. P. H. GOSSE ON THE CLASPJNG-OEGANS 



Colias. Here the genital armature is become very aberrant. C. Edusa bas a short, 

 tbick, obtuse uncus, and no valves nor barpcs, but fixed side pieces in place of valves, in 

 wbicb I can detect little analogy with Papilio. 



Mbrpho. In M. Menelaus I find valves mucb as in Papilio but witbout barpcs, an 

 uncus broadly triangular but witb a good booked beak-like point, very deeply keeled, and 

 a projecting penis. Tbe tootb on eacb ramus of tbe uncus is more tban usually separate 

 and strong. I see no trace of a scapbium. 



Nor in 31. Epistrophis, in wbicb for a while I fancied I did see a rudiment of tbe organ 

 far up in tbe cavity ; but very precise and repeated observation under a bigb power, with 

 ligbt thrown well into the spot, convinced me that I was looking into tbe anal orifice, and 

 that there was not tbe least trace of a scapbium. 



In tbis species there are well-developed valves, but small, and of delicate texture, of 

 which the tip, preceded by a pointed fringe of very long silver hairs, is of hard, dark 

 ebitine, turned up at an angle, with a serrated edge, of which the teeth are large, and cut 

 into minute toothlets along their sides. Here, then, we have one of the most peculiar 

 characteristics of a harpe transferred to the valve. 



Dynastor. But in the fine I). Barms the transition is complete. Here is a narrow, 

 parallel-sided but very deep uncus, and a pair of horny stout organs in the place of 

 valves, and having mucb of their outline, but bearing along the thickened dorsal margin 

 a double row of strong spinous teeth, black and glittering, most formidable to behold. 

 The valve with its harpe has become what Dr. White would call a true harpago, distantly 

 like his beautiful figure of the organ in Argyrmis Laodice (op. cit. pi. lv. fig. 20). 



I now close this Memoir ; but the work is very far from complete. It is but an 

 instalment of tbe subject that I here present to the Linnean Society ; a great majority 

 of tbe recognized species of Papilionida? being still untouched for this purpose. Yet I 

 have not ceased to work at them ; and if life and health be still vouchsafed to me, 

 I hope I may, before long, contribute to science more details of these remarkable instru- 

 ments, as yet unsuspected*. 



Conscious I am, too, that a good deal of imperfection attaches to tbe observations 

 recorded. Of not a few of the species examined and figured herein, I should be very glad 

 to repeat tbe examination, if I bad more specimens ; and Entomologists could scarcely 

 render me a kinder or more grateful service than by sending me examples of male 

 Papiliones, however torn in the wings, or even the separated abdomens, if duly authen- 

 ticated, of which they may possess worthless duplicates. 



* At the time of this sheet going to press (March 6, 1883), I have accumulated, in MS., descriptions, with drawings, ■ 

 of the genitalia of fifty-six speeies, in addition to those herein contained, belonging to the genera Orniihoptera, Papilio, 

 J\ inopalpws, Sericinus, and Leptocircus. 



