1872.] MR. F. MOORE ON NEW INDIAN LEPIDOPTERA. 567 



Tribe Sphinges. 

 Genus Pergesa, Walker. 

 Pergesa olivacea. 



Male and female olive-green : fore wing with three subbasal and 

 three discal transverse zigzag lines, the former dusky brown, the 

 latter ferruginous ; a prominent discocellular blackish spot with 

 white centre ; a suffused chalybeous zigzag-bordered band along 

 exterior margin : hind wing ferruginous black, with a submarginal 

 ferruginous zigzag band : cilia at anal angle white, the rest ferrugi- 

 nous : a narrow white lateral fringe to thorax ; abdomen laterally 

 above, wholly beneath, and the underside of both wings yellowish 

 testaceous : discal transverse lines beneath and marginal bands to 

 both wings dark brown, the inner line on fore wing broad and 

 extending along the cell. 



Expanse 2| inches. 



Sab. Simla, N.W. Himalayas, 7000 feet. In Coll. Capt. Lang 

 and F. Moore. 



Pergesa castanea. 



Male. Fore wing dark chestnut-brown, with two indistinct sub- 

 basal oblique fasciae of paler brown, the outer fascia encircling a 

 small black discocellular spot ; outer margin of the wing broadly 

 chalybeous-speckled ; base of hind margin fringed with greyish 

 brown hairs : hind wing dark cinnamon -brown : cilia of both 

 wings chestnut-brown, and white at the angles : head, thorax, and 

 upper part of abdomen dark chestnut-brown, sides of latter pale 

 cinnamon-brown ; thorax with a white lateral line. Underside 

 bright ferruginous brown, with three transverse lunular greyish 

 lines, and greyish-speckled outer margins : legs pale brown : 

 antennae brown. 



Expanse, <$ 2\ inches. 



Hab. Bombay. In Coll. F. Moore and Dublin Nat. Hist. 

 Society. 



Genus nov. Langia. 



Palpi short, thick, densely pilose. Antenuas minutely pectinated. 

 Legs thick, rather short ; tibiae incrassated at the apex ; femora of 

 all the legs and fore tibiae densely pilose, middle and hind tibiae 

 squamose ; middle tibiae armed with one pair and hind tibae with two 

 pairs of contiguous straight sharp spurs. Body robust, thorax 

 broad, abdomen extending half its length beyond the hind wings. 

 Fore wings long, narrow, exterior margin deeply scalloped, costa 

 arched near the apex. Hind wings moderate, slightly scalloped. 



Langia zenzeroides. 



Male mottled grey and brown : fore wing thickly speckled witli 

 black and testaceous scales ; costa broadly grey, the hind and 

 exterior margins brownish grey, the median space from base to apex 

 whitish teataceous ; from the hind margin proceed three blackish 



