454 MAJOR E. E. AUSTEN. 



ihvee segments, which are hlackish-hroivn, is ocJiraceoiis-tawny above; dorsum of ^ 

 abdomen also i&itJi a paler, median, longitudinal stripe. 



Head : Sabcallus and front in $ except vertex, tawny-olive poUinosc, face, jowls, 

 occiput and vertex pale smoke-grey poUinose, upper extremities of sides of face 

 adjoining subcallus faintly tinged w ith tawny-olive ;• jowls and hinder edge of posterior 

 orbits below clothed with pale yellowish hair, fringe of similar hair on hinder edge of 

 upper part of posterior orbits so short as to be scarcely discernible ; front in $ only 

 very slightly narrower at lower than at upper extremity, and without trace of an 

 oceilar tubercle ; frontal callus tawny-olive, elongate and roughly longitudinally/ 

 cylindrical-ovate in outline, with its lower end just above lower inner angles of eyes, 

 and its upper extremit}/ produced into a linear extension, the reddish-brown ter- 

 mination of which reaches to a point about half-way up the front ; palpi pinkish buff, 

 clothed on outer side with minute, appressed black hairs, proximal segment below 

 with longer yellowish hair, distal segment in ? elongate acuminate, moderately swollen 

 at base ; first and second segments of antennae cinnamon-coloured (first segment 

 somewhat palhd neutral grey polHnose above), clothed on outer surface with minute 

 black hairs, first segment expanded as usual from base to tip, but its upper distal 

 extremity not enveloping second segment, upper distal angle of latter not conspicu- 

 ously produced (third segment wanting in case of type). Thorax : Dorsum, including 

 scutellum, clothed with short, glistening, appressed Naples yellow hair, lateral 

 border of dorsum and dorsal surface of scutellum smoke-grej/ polhnose, swelhng 

 occupying depression at each end of transverse suture with a vinaceous-buff ground 

 colour, and sparsely clothed below with longer, erect black hair ; pleurae and pectus 

 smoke-grey pollinose, and clothed with fine whitish hair. Abdomen : Paler, median, 

 longitudinal stripe light pinkish-cinnamon pollinose on ochraceous-tawny, smoke-grey 

 pollinose on blackish- brown portion, extending from hind margin of first (visible) to 

 hind margin of sixth tergite, inclusive, and clothed with minute, appressed, glistening 

 Naples yellow hairs ; lateral borders of first six tergites somewhat smoke-grey pollinose, 

 and clothed with hair similar to that on median stripe ; dorsum otherwise than as 

 already stated clothed with minute, appressed black hairs ; first four ventral scutes 

 pinkish-cinnamon, clothed with minute, appressed, glistening Naples yellow hairs, 

 last three ventral scutes blackish-brown ; fifth and sixth ventral scutes somewhat 

 greyish pollinose, clothed with appressed blackish hair, mixed on fifth scute with 

 minute, glistening Naples yellow hairs, seventh ventral scute clothed as usual with 

 coarse, erect black hair. Wings : Hyaline, with cinnamon-brown or paler veins ; 

 stigma ochreous, elongate, not conspicuous. Squamae light drab or drab-grey, with 

 pale-haired borders. Halteres cream-buff, stalks somewhat darker. Legs : Coxae 

 smoke-grey or mouse-grey pollinose, clothed with whitish hair ; front legs, except 

 coxae, blackish brown, distal fourth of front femora and rather less than proximal 

 half of front tibiae cinnamon-coloured ; middle and hind legs, except coxae, ochraceous- 

 tawny, bases of femora and upper surface of tarsi, except practically whole of first 

 and extreme base of three following segments, more or less dark brown ; front legs, 

 apart from coxae, mainly clothed with black hair, posterior border of upper surface 

 of femora clothed with fine, yellowish hair ; middle and hind legs clothed mainly 

 with yellowish (yellowish white) hair, upper surface of hind femora and outer edges 

 of extensor surfaces of hind tibiae also with minute black hairs ; front tarsi not 

 expanded. 



SiAM (precise locality uncertain), 3.ii.l914, " at hght " (A'. G. Gairdner). 



The type of this species might easily be regarded as a $ of T. pugiunculus, Austen, 

 were it not for the exceedingly pale stigma, differently coloured halteres and much 

 less infuscated femora. Should it after all prove to be conspecific with the (^ that has 

 been treated as the type of T. pugiunculus, the ^ provisionally regarded as belonging 

 to that species will represent a new one. 



