94 NEW ZEALAND MACEO-LEPIDOPTEEA. 



Genus 8. IPANA, Walk. 



" Face roughly haired. Antennae in male simple, shortly ciliated. Palpi as in Dedana. 

 Thorax densely hairy above and beneath, with slight median crest. Abdomen in male elongate. 

 Femora densely hairy ; posterior tibiae in male short and much swollen, furnished on inner side 

 with very large dense tuft of hairs. Fore-wings in male without fovea ; veins 10 and 11 separate." 

 (Meyrick). 



We have one species in New Zealand. 



IPANA LEPTOMEEA, Walk. 



(Ipana leptomera, Walk., Noct. 1662.) 



(Plate X., figs. 29, 31, and 3lA $ varieties, 30 2 .) 



This species is common in the neighbourhood of Wellington, and I expect 

 generally distributed throughout New Zealand ; but as there appears to have been 

 some confusion in Mr. Meyrick's papers between it and the female of Dedana 

 junctilinea, I am unable to assign the localities there mentioned to either of the species. 



The expansion of the wings of the male is 1 inches, of the female If inches. The fore-wings 

 of the male are uniform pale brownish-ochreous, generally with two transverse series of minute 

 darker brown dots parallel to the tennen, and two or three similar dots near the middle of the 

 wing. There is a series of very small parallel brown lines on the costa. The hind- wings are 

 greyish-brown with two very deep indentations in the termen. The female has the fore-wings 

 pale grey, and the hind-wings darker grey ; the markings and outline resemble the male. 



In a few male specimens I have observed four large black spots on the fore-wings, 

 two near the base, and two near the termen. All these spots are sometimes joined 

 together by a very broad black band, which extends along the whole of the central 

 portion of the fore-wings. I have also a male specimen in which the fore-wings are 

 entirely marbled with dark grey. In the female two or three moderately large spots 

 are occasionally present on the fore-wings, near the termen. All these varieties appear 

 to be much scarcer than the typical form. 



The larva, which feeds on manuka (Leptospermiim), has ten legs. It is rather 

 slender, dark brown, mottled with grey and dull red. There are two large tubercles 

 on the sides of the seventh and eighth segments. It is a sluggish caterpillar and is 

 generally seen in a motionless condition, clasping the stem of its food-plant with, its 

 prolegs, and holding the rest of its body in a perfectly rigid position like a small 

 branch. The pupa is enclosed in a cocoon of silk and refuse on the surface of the 

 ground. 



The perfect insect appears in January, February and March. It is a forest- 

 dwelling species, and may often be captured in some numbers, at dusk, on the flowers 

 of the white rata (M. scandens). It is very sluggish and nearly always drops to the 

 ground when disturbed and feigns death. 



Genus 9. DECLANA, Walk. 



"Face roughly haired. Antennae in male bi-pectinated to apex or simple. Palpi with second 

 joint ascending, rough-haired, terminal joint rather long, slender, clavate, porrected. Thorax 

 densely hairy above and beneath, with more or less developed median crest. Femora densely hairy. 

 Fore-wings in male without fovea ; vein 6 sometimes out of 9, 10 sometimes out of 9, connected 

 or anastomosing with 9, 11 sometimes out of 10, sometimes connected or anastomosing with 10." 

 (Meyrick.) (Plate II., figs. 56 and 57, neuration of Dedana floccosa, 58 head of ditto.) 



We have seven species. 



