7- /?3^ 



296. 

 ZERYNTHIA LATENTARIA. 



Order Lepidoptera. Fam. Phalaenidae Lat., Leach. 

 Type of the Genus, Phalsena didymata Linn. 



Zerynthia Noh. — Cidaria Zerene and Fidonia Treit. — Geometra 

 Hub., Haw. — Phalaena Linn., Fab., Lat., Don. 

 Antenncs inserted on the crown of the head close to the eyes, 

 rather short, pectinated in the males, composed of numerous ob- 

 long joints covered with scales above, each producing 2 long pu- 

 bescent branches (1), excepting 2 or 3 at the base ; towards the 

 apex they become short, and several of the terminal joints have 

 none (lb); in the females they are quite simple (2). 

 Maxill(E the length of the antennae, spiral, furnished with pe- 

 duncled glands at the apex (3). 



Labial Palpi short, clothed with scales (4) ; triarticulate, basal 

 and 2nd joints not very long, of equal length, the former curved, 

 the latter straight, 3rd minute subglobose (4 a). 

 Head s/jorL Eyes globose (7). Thorax lobed. Abdomen slender, 

 linear and obtuse in the males, ovate-conic in the females. Wings, 

 superior subtrigonate ; inferior not very ample. Thighs, hinder rather 

 short. Tibiae, anterior short with a spine on the internal side, middle 

 and posterior spurred, the latter long with a pair of spurs below the 

 middle. Tarsi longer than the tibice in the anterior and shorter in 

 the other legs, the basal joint the longest. Claws and Pulvilli mi- 

 nute (8t, a hind leg). 

 Caterpillars loopers, with 6 pectoral, 2 abdominal and 2 anal feet. 



Latentaria Nob. 



Cinereous, minutely freckled with black. Superior wings varie- 

 gated with a tint of ochre, having 7 or 8 irregular waved strigae, 

 darkest at the costa, the space between two forming a more or 

 less decided bar across the middle, the external margin of which 

 is crenate and edged with a whitish line ; in the centre is a black 

 dot ; posterior margin with 7 pairs of black dots ; the cilia ma- 

 culated. Inferior wings duller, with a black point between the 

 base and middle, beyond which are a few indistinct irregular and 

 waved lines, some of them forming an obscure fimbria; the mar- 

 gin having 6 pair of black dots, and the cilia slightly maculated. 

 Body with the segments whitish at the margins. Legs annulated. 



In the Cabinets of Mr. Dale and the Author. 



Most of the followincr species are included in the genus Ci- 

 daria by Treitschke, but as the antennae of the male in his first 

 species [PlialcEna propugnata F.), which I presume is the type, 

 ai'e merely ciliated and not pectinated, it has become necessary 

 to designate the succeeding group by another name. 



