INSECTA. 407 



Family XXVII. Diurna. Wings mostly erect when the in- 

 Ipect is seated, never bridled by a retinaculum. Antennas in by far 

 I the most clavate, abruptly terminated by a capitulum, in a few 

 I filiform or subsetaceous, with apex more slender, uncinate. Ocelli 

 I none. The caterpillar always with sixteen feet. Chrysalis almost 

 llalways naked, angulate, attached posteriorly by threads, or sus- 

 L pended vertically, or affixed by a transverse silken cord expanded 

 above the middle of the body. Flight of Imago diurnal. 



Butterflies (Rhopalocera BOISDUV.) These insects have usually 

 clubbed antennae, which is the case with all our domestic species ; 

 when at rest they erect their wings, so that the upper surface of the 

 wing is turned inwards. The genus Papilio of LINNAEUS corresponds 

 to this family of later writers. 



Comp. on this family, GODART, article Papillon, making the entire IX. 

 part of the Hist, natur., Insectes, of the Encyclopedic method. 1819, and E. 

 DOUBLED AY, The Genera of diurnal Lepidoptera, illustrated with colour, plates. 

 London, 1846 and foil. 4to. 



Phalanx I. Posterior tibiae, as in the preceding families, 

 spinose not only at the extremity, but also on the inside before the 

 extremity. (Caterpillar very often living among leaves that have 

 been spun together. Chrysalis smooth, folliculate, or tied up by 

 a transverse thread.) 



Urania FABR. Antennae filiform, more slender at the apex, 

 and arcuate or uncinate. Labial palps triarticulate, elongate, slen- 

 der, with second joint greatly compressed, third slender, subcylin- 

 drical, almost naked. Wings broad, large. 



Sp. Urania Leilus, Papilio (Eques) Leilus L., KLEEMAN, Beytrdge, Tab. n. 

 fig. i, South America; Urania Boisduvalii GUERIN, Uran. Fernandince 

 MAC LEAY, GUERIN, Iconogr. Ins. PL 82, fig. i ; the larva, the web and 

 the pupa figured in Trans, of the Zoolog. Soc. I. i, 1834, pp. 179 189, PI. 

 26. The larva is thick, with a few hairs, in form not unlike a caterpillar of 

 Callimorpha, but with a very large head ; the web is thin, so that the pupa 

 is visible through the meshes. These species belong to the genus Cydimon 

 of DALMAN, Pap. (Eques} Orontes L. (CRAMER, Uitl. Kap. Tab. LXXXIII. figs. 

 A, B) to the genus Nyctalemon of the same. 



Urania Riplieus CRAMER, Uitl. Kap. Tab. CCCLXXXV. fig. A, B ; Bois- 

 DUVAL, Nouv. Ann. du Museum, n. 1833, PI. 14, figs, i, 2, has a spiny 

 caterpillar with the first four membranous feet short, so that it moves like 

 a geometric caterpillar. It does not spin itself up when about to change 

 to a pupa, but affixes itself by means of a thread stretched transversely over 

 the body, like the caterpillars of the genus Pieris, &c. This species, placed 



