EMBIA MAJOR EEOM THE HIMALAYAS. 177 



3. Description of the Female. 



Deep brown to brown-black, clothed with lighter brown hairs, longer and more 

 numerous than in the male. The antenna? 23-29-jointed, shorter than the thorax. 

 The head, thorax, and abdomen mutually related in length in the proportion of 

 3 : 7 : 10. The first joint of the hind tarsi with two arolia. The 8th and 9th abdominal 

 terga subequal, but shorter than those of any of the preceding segments. The 

 10th tergum longer than the ninth, narrowing posteriorly with the hind margin 

 prominently rounded. 



Length 14-75-2075 mm. 



The Head differs from that of the male in that it attains its maximum width just 

 behind the eyes. The eyes, moreover, are smaller and less markedly reniform. The 

 antenna? (PI. 38. fig. 3) measure from 5-6 mm. in length, and are shorter than the thorax. 

 The number of joints varies from 23-29 and, for the most part, they are shorter and 

 more annular than the corresponding joints in the male. The combined length of the 

 4th, 5th, and 6th joints is less than that of the first two joints. The labrum only differs 

 from that of the male in that the hairs of the epipharynx are more numerous and rather 

 more elongate ; they are similarly disposed in two longitudinal rows as in the male. 

 The mandibles (PL 38. fig. 6) are much more massive than in the male, and their biting- 

 edges are armed with four prominent teeth (1-4 in fig. 6). Two of the teeth are situated 

 close together at the apex of the jaw. These are followed by a large and usually bilobed 

 tooth, occupying the middle of the biting-edge of the jaw. Near the inner angle there 

 is a fourth and somewhat smaller tooth which in some individuals is greatly reduced or 

 absent entirely. Immediately below this tooth (no. 4) is a basal process {add.) which 

 provides attachment for the adductor muscle of the mandible. The ginglymus (ging.) is 

 very prominent and is produced outwards on a stout pedicel. To the outside of the 

 ginglymus is the condyle (cond.), and at the extreme outer angle of the mandible is 

 situated the point of attachment of the abductor muscle (abd.). The first maxillae only 

 differ from those of the male in that the two apical teeth are considerably longer and 

 more prominent. The dorsal tooth is rather longer and more slender than the ventral 

 one. The maxillary palpi are five-jointed, and exhibit no appreciable differences in the 

 two sexes. The hypopharynx, in the majority of specimens examined, was found to be 

 slightly larger than that of the male, but does not appear to exhibit any essential 

 differences. 



The Thorax is longer than in the male, and consists of three annular segments whose 

 terga are extremely simple in structure, differing but little from those of the abdomen 

 except in size. The deep transverse suture of the prothorax is situated, in some 

 specimens, rather further forward than in the male. The median longitudinal groove is 

 frequently produced beyond the transverse groove to the anterior margin of the pro- 

 thorax. The legs do not differ from those of the male in any essential features. The 

 tarsal claws are similar in both sexes and, in relation with the hind pair of legs, there 



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