452 MAJOR E. E. AUSTEN. 



not very conspicuous median longitudinal stripe, clothed with minute, appressed, glistening 

 Naples yellow hairs, extending from base of second {visible) to hind margin of sixth 

 tergite ; wings hyaline, with conspicuous cinnamon-brown stigma. 



Head : Rather less than upper half of frontal triangle in ^ mummy-brown, 

 remainder of frontal triangle pale olive-buff pollinose, face, jowls and occiput pallid 

 neutral-grey pollinose, clothed with whitish hair, hind margin of upper border of 

 occiput in ^ without any noticeable fringe of hair ; outer extremity of area of enlarged 

 facets in eye of ^ broadly and bluntly rounded off (see fig. 7), enlarged facets them- 

 selves conspicuously coarse, and below and at outer extremity of area sharply 

 differentiated from smaller facets ; posteriorly transition to smaller facets is more 

 gradual, though a border, fairly uniform in width, of small facets runs up to and 

 reaches vertical triangle ; palpi, vinaceous-buff (proximal segment somewhat infus- 

 cated on outer side), clothed with hair like that on jowls, interspersed with which 

 on outer side of distal segment are scattered, minute black hairs, distal segment 

 cylindrical, bluntly pointed at tip, not conspicuously swollen ; first segment of 

 antennae in c? light ochraceous-buff, somewhat swollen distally but not embracing 

 second segment, clothed above with minute black hairs and on outside and below 

 with pale yellowish hairs, second segment ochraceous-tawny, its distal margin clothed 

 on outer side with minute black hairs and its upper distal angle but little produced 

 in (J, third segment tawny (in case of type, distal extremity of expanded portion 

 dark brown and last two annuli missing), expanded portion in ^ elongate and some- 

 what narrow, with blunt but prominent angle on upper margin near base. Thorax : 

 Dorsum showing indistinct traces of three longitudinal and incomplete, impressed, 

 dusky lines ; swelling in depression at each end of transverse suture pale ochraceous- 

 buff pollinose, clothed with fine cream-coloured hair ; swelling on each side above 

 base of wing, behind end of transverse suture, pallid mouse-grey pollinose ; pleurae 

 and pectus, at least in type, blackish mouse-grey, clothed with fine, whitish hair. 

 Abdomen : Lateral extremities, except lateral borders, of second to fourth tergites 

 inclusive, at least in case of type, more or less dark brown ; lateral and hind borders 

 of fifth to seventh tergites, inclusive, as well as posterior angles of fourth tergite,. 

 cinnamon-buff or ochraceous-buff ; lateral borders of first six tergites with a more 

 or less distinct, pallid neutral -grey pollinose coveiing, and clothed with pale, whitish 

 hair ; first (visible) tergite, except narrow median area immediately behind scutellum, 

 which is clothed with fine Naples yellow hair, and except its lateral borders, clothed 

 with minute, appressed black hairs ; second to sixth tergites, inclusive, except 

 median stripe as described in diagnosis above, and except lateral borders, clothed 

 with minute, appressed black hairs, interspersed with minute, appressed glistening 

 Naples yellow hairs ; seventh tergite in (J clothed exclusively with black hairs ; 

 cJ genital appendages clothed above with black hair, sides of eighth segment in ^ 

 clothed partly with whitish or yellowish, partly with black hair ; first three (visible) 

 ventral scutes and base of fourth orange-cinnamon-coloured, last three ventral 

 scutes arid rather more than posterior half of fourth ventral scute, except hind 

 border or hind margins in case of fourth to sixth scutes inclusive, olivaceous black ; 

 first three ventral scutes each with an ill-defined dark mouse-grey or olivaceous- 

 black median blotch, not reaching hind border in either case, but otherwise quadrate 

 and extending full length of segment in case of first two visible segments, transverse 

 and occupying less than posterior half in case of third segment ; posterior borders 

 or margins of third to sixth ventral scutes inclusive cream-buft' ; entire venter light 

 neutral grey pollinose, second (visible) and three following segments, as well as 

 hind margin of sixth segment clothed with appressed cream-buff hair, last two 

 ventral scutes clothed with erect black hair, coarser as usual in case of last scute, 

 and mixed with minute, appressed cream-buff hairs in case of penultimate scute. 

 Wings : Costa blackish-brown, veins otherwise mummy-brown. Squamae light drab,, 

 borders mummy-brown. H alter es, knobs blackish-brown or clove-brown, stalks 

 tawny-olive. Legs : Front coxae light neutral grey pollinose, middle and hind coxae 



