280. 



BOARMIA TETRAGONARIA. 



The Brindled Square-spot. 



Order Lepidoptera. Fam. Phalaenidae Lat., Leach. 



Type of the Genus, Geometra consonavia Hub. 



BoARMiA Treit. — Vhaisena Linn., Fab., Steph. — Geometra Hm^., Haw. 

 AntenncE inserted on the crown of the head, setaceous, clothed 

 with scales above, composed of numerous joints, each producing 

 a series of long curved hairs in the males (1) ; simple in the 

 females. 



MaxillcE not so long as the antennae (3). 



Labial palpi short, porrected horizontally, thickly clothed with 

 short scales (4) ; triarticulate, 1st and 2nd joints of equal 

 length, the former curved, the latter oval, 3rd very minute (4 a). 

 Head small. Eyes large globose {7 a). Thorax not large. Abdomen 

 rather long, slender, and attenuated in the males ; shorter, subcorn- 

 eal or acuminated in the females. Wings extended horizontally when 

 at rest, superior subtrigonate, inferior with the viargin deeply in- 

 dented. Legs, anterior with the tibice producing a broad lobe at 

 the middle, ciliated on the inside and acuminated at the apex, 

 the others spurred, the hinder ones with a pair towards the middle. 

 Tarsi 5-jointed, basal joint as long as the tibia. Claws simple. 

 Pulvilli distinct, each side producing a ciliated lobe or appendage. 

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



Tetragonaria Haw. MSS. 



Dirty white, freckled with black. Antennee spotted with brown. 

 Thorax with the tips of the anterior scales brown. Abdomen 

 with the 2nd joint brown, darkest at the base. Anterior wings 

 clouded with brown ; a brownish curved fascia towards the base, 

 the edges irregularly darker, across the middle runs a very ob- 

 scure and broken line, divided or forming a loop near the costa, 

 beyond are 2 pale sinuated lines, the 1st interrupted and edged 

 v/ith black, the 2nd somewhat dentated, between them is a large 

 brown spot at the costa and a square one of the same colour in 

 the centre ; the space between the 2nd striga and the posterior 

 margin (which is dotted with black) is clouded with brown, dark- 

 est a little below the apex. Inferior wings with a small unspotted 

 space at the base, followed by a thickly dotted one ; 2 indented 

 broken lines across the middle, darkest at the abdominal margin, 

 with a lunular spot between them, beyond the 2nd are two 

 brown waved strigse and a series of brown dots on the margin 

 which is crenate-serrate. 



In the Author's and other Cabinets. 



