520 PROF. J. O. WESTWOOD ON THE URANIID.E. 



mentioned by Mr. MacLeay : — 1st, the retractile rosy-coloured tentacles of the larvee ; 

 2ndly, its somewhat Geometriform movement; and, 3rdly, the want of a cocoon (at 

 least no mention is made thereof by M. Sganzin), and the girt condition of the chry- 

 salis. 



I am able to add descriptions and figures of the larva and pupa of a species of the 

 genus C'oroiiidia, allied to C. orithea, which had been observed by Herr Moritz at 

 Bogota, and to which he had applied the nam.e of C. regina. The specimens of the 

 larva and pupa were carefully prepared, and were in the collection of Dr. Kaden, of 

 Dresden, where 1 examined and made the drawings of them here published (PI. LXXXV. 

 figs. 1, 2). The caterpillar has a small head, and the prothorax is smaller and thinner 

 than the following segment. The general colour is luteous, with black spots and a black 

 head ; on the prothorax are ten small shining points, forming an oval patch placed 

 transversely ; the segments of the body are furnished with two small conical luteous 

 tubercles, and on the second, sixth, and seventh segments are two erect black, slightly 

 curved spines. The chrysalis is oval, entire, without conical protuberances ; the tongue- 

 case is considerably elongated beyond the wing-cases ; and the extremity of the body 

 forms an acute deflexed spine. It is enclosed in a loose open-work cocoon spun at the 

 base of a folded leaf. 



The following Table combines the principal characters of the sections and genera 

 comprising the family Uraniidse, details of which are illustrated in Plate LXXXV. 



Family Uraniid^, Westw., Introduction, ii. p. 3Gi) (1840). 

 Uranides, Guenee, Sp. Gen. ix. p. 1. 

 Cydimonii, Blanchard, II. N. Ins. ii. p. 318 ; Walker, List Brit. Mus. Lep. Ilet. p. 4. 



A. Fore wiugs with the fifth branch of the subcostal vein {b 5) emitting tlie upper discoidal vein 

 [b 5 *) at a considerable distance beyond the discoidal cell. 



a. {Cydimon Dalm.) Palpi with the terminal joint very short. 



* [Cydimonidos Blanchard, Guenee.) Hind wings with the second and third branches of the 



median vein produced into the long tail ; second branch of the subcostal vein free. — 

 Gen. Ur.widia, AYestw.; type U. leilus (figs. 13, 14). 

 ** {Urania Blanchard, Gueuee.) Each of the veins of the hind wings prolonged into a tail ; 

 second branch of the subcostal vein of the fore wing coalescing with the third branch 

 halfway between the cell and the tip of the wing. — Gen. Chrvsiridia, Hb. ; type V. 

 rhipheus (figs. 15, 16). 



b. [Nyctalemon Dahn., Nyctakmonidte Guenee.) Palpi with the terminal joint long, slender, and 



pointed. 



* Each of the veins of the hind wings produced into a short scallop, postcostal vein of fore wings 



wanting the 2nd branch (62). — Gen. Alcidia, "Westw.; type U. orontes (figs. 17, 18). 

 ** Hind wings with the second and third branches of the median vein produced into a long 

 tail. — Gen. Lyssidia, Westw.; type U. patroclus (figs. 19, 20), 



