667. 



ENNOMOS ANGULARIA. 

 The clouded August Thorn. 



Order Lepidoptera. Fam. Geometridae. 



Type of the Genus, Geometra angularia HiXh. 



Ennomos Och., Goda, Curt. — Geometra Linn., H'lib., Haw., Step. — 

 Phaleena Fab. 



Antennce inserted close to the eyes, towards the base of the head, 

 bipectinated in the males to the apex (1 c^), the rays long, 

 slender, and ciliated on both sides with short curved hairs, and 

 a few fine bristles at the apex ; simple in the females (1 $ ), but 

 slightly serrated, the internal angles being produced. 

 Maxillce very short and spiral, rather broad and flat, not longer 

 than the palpi (3). 



Labial palpi projecting a little obliquely beyond the head, form- 

 ing a beak, very hairy (4), tapering, triarticulate, basal joint the 

 stoutest, lunate, 2nd rather more slender, and about the same 

 length, 3rd shorter and slenderer (4 a). 

 Head small and short, the scales projecting in a point in front (7 *) •• 

 eyes comparatively large and hemispherical. Thorax rather small, 

 woolly. Abdomen long, linear and dilated at the apex, with horny 

 appendages in the male ; shorter stouter and conical at the apex in 

 the female. Wings, superior subtrigonate, posterior margin bi- 

 sinuated ; inferior trigonate-ovate with a lobe at the centre of the 

 margin : cilia very short. Legs moderate : thighs not long : tibiae, 

 anterior short, with a hairy internal spine, the others with short 

 sjmrs at the apex, hinder a little the longest, with a pair of short 

 spurs also a little above the apex (8 f) .• tarsi long slender and 5- 

 ••ointed, hinder rather the shortest; claws and pulvilli minute. 

 Larvae loopers, smooth but tubercled, with 6 pectoral and 4 anal feet : 

 Pupae subterranean. 



Angularia Hilb. — Curt. Guide, Gen. 902. 9. 



Male bright ochreous, superior wings more or less brown, leaving 

 a fascia of the ground colour across the disc, margined by a dark 

 brovvTi striga, the inner one curved and angulated at the costa, 

 the outer one straight, but curved towards the costa, which it 

 joins obliquely ; a brown dot on the disc, the posterior portion 

 of the wings freckled : inferior wings dark ochre at the margin, 

 with a dark striga before the middle : cilia dark brown edged 

 with white. Female with the superior wings beautifully but 

 irregularly freckled with brown, the strigae strong and inclining 

 to lead colour, nervures partially ferruginous ; inferior wings 

 faintly freckled with lead colour, strongest towards the margin. 



In the Author's and other Cabinets. 



This handsome group of Moths is distinguished from thegreater 

 part of the Geometridfc by the shape of the wings as well as 



