188 [August, 



than one-quarter the width of liead). Antennae hunger, basal joint distinct, 

 almost as long as second, the second rather longer than deep ■with a distinct 

 bristle beneath at tip, these two joints having a tendency to be yellowish. 

 Third joint about half as long again as deep at base, and hardly deeper than 

 second joint; the long arista distinctly pubescent. Palpi dusted greyish but 

 of a dark ground-colour, the apical bristle yellowish. Thorax as in hasalis, 

 but pleurae extensivel}' dusted greyish with a large polished spot on tliesterno- 

 pleura and a smaller one on the liypopleura ; no black bristly hairs mixed 

 with the pale pubescence on disc of thorax. The large metathorax, which in 

 Drapetis may often easily be mistaken for the first abdominal segment, is also 

 dusted greyish. Abdomen shining black, occasionally somewhat brownish 

 cspecialh' to\'.ards tip ; the pale npcurved tine pubescence conspicuous at sides. 

 Legs yellow, but tibiae and tarsi often somewhat yellowish-brown. C'haeto- 

 taxy as in hasalis but the preapical bristles to liind femora hairlike and very 

 inconspicuous ; a few hairs of the pale pubescence beneath hind tibiae towards 

 tip are somewhat long but not so distinct or Inistlj' as in hamlis ; no distinct 

 bristle at middle of basal joint of hind tarsi behind. Wings long and narrow, 

 very faintly' brownish ; cubital vein slightly dowucurved towards tip ; discal 

 vein somewhat undulated ; distance between cross-veins about two-fifths the 

 length of last section of postical vein. Halteres pale yellow. 



5 . Resembling the male but abdomen more pointed and ending in a pair 

 of slender hairy papillae. 



Length about '2 mm. 



Loc. Seychelles, Long Island (a small cultivated islet off the coast 

 of Mahe), vii.1908, 4 d" , 2 5 • Make: marsh near coast at Port Glaud, 

 6.xi.l908, 1 J , 1 5 ; marshes on coastal plain at Anse aux Pins and 

 Ansa Eoyale, i.l909, 1 J • 



All the other species were found at higli elevations, in or near the 

 endemic forests. In this species alone all the examples were taken at 

 places near the coast and almost at sea-level. 



5. TacliyJromia lacteisefa, sp. n. 



Allied to albiseta, alhocapillata, etc., having similar antennae, thorax with 

 humeri only slightly differentiated, and front femora Avith a few bristly hairs 

 beneath. 



5 . I'^rons and face equally verv narrow (al)out width of front ocellus), 

 dusted greyish. Occiput all dusted greyish. Ocellar bristles very minute and 

 the single pair of vertical bristles wide apart (two and a half times width of 

 ocellar triangle). Antennae black, elongate, third joint slender, quite five 

 times as long as deep at base and pubescent ; arista not quite so long as third 

 joint, milk-white and pubescent. Palpi small, dark yellowish, but clothed 

 with greyish pile and bearing a few pale hairs. Proboscis short, not much 

 more than one-third the height of head. Thorax with a distinct tendency to 

 be reddish-brown, the disc blacker and more sparsely dusted biownish-grey ; 

 pleurae usually more distinctly reddish, sparsely dusted greyish and without a 



