703. 



HYBERNIA DEFOLIARIA. 



The mottled Umber Moth. 



Order Lepidoptera. Fam. Phalaenidae. 



Type of the Genus, Geometra defoliaria Linn. 



Hybernia Lat., Goda., Curt. — Fidonia Treit. — Geometra Linn., 

 Hiib., Haw. 



Antenna inserted on each side of the crown close to the eyes, 

 rather short, setaceous, clothed with scales, bipectinated in the 

 males, the joints producing 2 teeth on each side, with a series 

 of curled hairs projecting from the apex (1). 

 MaxillcE very short, not longer than the labial palpi, forming 2 

 lanceolate lobes, very broad at the middle (3), with a small 

 Palpus attached at the base, composed of 3 joints, 1st minute, 

 2nd much larger, obovate, with some long scales above, 3rd 

 very minute (a). 



Labial palpi very small, horizontal, clothed with long scales 

 beneath (4) ; triarticulate, basal joint the longest and largest, 

 curved at the base, 2nd short subturbinate, 3rd a little smaller 

 and subovate (4 «). 



Trophi of females similar but a little shorter, especially the 

 Palpi. 

 Male: head small and short (7): eyes lateral and globose. Thorax 

 small. Abdomen neither long nor stout, slightly tapering, tufted at 

 the apex. Wings very ample, forming a triangle in repose : supe- 

 rior elongate-trigonate, the apex perfectly rounded : inferior trigo- 

 nate-ovate : cilia moderate. Legs slender : thighs equal : tibiae, 

 anterior the shortest with an internal spine, the others with spurs at 

 the apex, very short in the hinder, with a pair also considerably be- 

 low the middle (8 f) : tarsi 5 -jointed, anterior the longest: claws 

 and pulvilli minute. Female apterous or ivith rudimentary wings. 

 Abdomen elongate-conic : oVidiMCt short and pilose. Legs stoutish ; 

 anterior tibice without spines. 

 Larvae loopers, slightly hairy, with 6 pectoral, 2 abdominal and 2 anal 

 feet. 



Defoliaria Linn. — Curt. Guide, Gen. 914. 3. 



Ochreous, with large purplish freckles : superior wings with a 

 brown curved fascia near the base, more or less irregular, and 

 another of the same colour beyond the middle, with the edges 

 very much sinuated and often edged with dark brown, a large 

 blackish dot on the disk and a few brown spots on the cilia to- 

 wards the apex : inferior wings with a pale livid spot on the 

 centre. Female yellowish white, spotted with blue-black : 

 thorax with 4 spots, a double line of large spots down the back 

 and the legs blue-black, the thighs and tibiae annulated with 

 white. 



In the Author's and other Cabinets. 



