IN CERTAIN LEPIDOPTERA. 



281 



organ. ^ The result is an order of succession which, it must be confessed, sets at nought 

 that which is founded on the form, neuration, and colours of the wings. It is not proposed 

 as, in any sense, a natural arrangement of the species, but as a help to reference and 

 memory, and as a means of comparison of the varying conditions of this special 

 organ. The groups themselves are loosely defined, and run into each other. 



It must be recollected that the armature of only sixty-nine species, out of the four 

 hundred and more described PapiUones, is here recorded. A fuller examination will 

 doubtless bridge-over many gaps, and supply other forms. 



Orntthoptera. 



1. A broad arm ending in a bent spiniferous hand. 



Arruana. Haliphron. 



Pronomus. Darsius. 



Ricliniondia. Rhadaniantlius. 



2. A long wire, springing from a square plate. 



Amplirysus. 



3. A small hollow shell, with toothed edjyes. 



Remus. 



Heliacon. 



Heliaconoides. 

 Brookeana. 



Nephelus. 

 Cliaon. 

 Mencstheus . 

 Pammon. 



Agavus. 



Papilio. 



4. A shaft with securiform head, and generally a tooth beneath. 



Memncm. Schmeltzi. 



Ma J r °- Polyrnnestor. 



Erechtheus. Proteuor. 



Rhetenor. Ascalapkus. 



Deiphoutes. Helenus. 



5. A sword with a saw-edge, or pointed, and set edgewise. 



Macliaon. Merope. 



Arctums. Brutus. 



6. A long two-pointed blade, not serrate. 



Hornerus. 



7. A long pointed style, not serrate. 



UI ysses. Phorcas. 



8. A broad thin plate, with thickened edges, especiaUy the ventral ; variously toothed. 



Tnoas - Bathycles. 



Turuus. 



Polycaon. 



Axion. 



Hesperus. 



Dcnioleus. 



Agamemnon. 

 Erithonius. 

 Anchisiades. 

 Vertumuus. 



Sesostris. 



Children^. 



Lysander. 



Euryleon. 



Ergetcles. 



9. Tlie plate obliquely truncate, serrate, or running into broad points ; with deviations 

 Macedon. Latreiliei. Doubledayi. 



? r °™- Semperi. Rhodifer. 



Podahnus. Lycidas. 



SECOND SERIES.— ZOOLOGY, VOL. II. 40 



