- SS ee Eee ee ee ee 
KAHL: NEW SPECIES (OF *SYRPHIDA. 139 
Segments broadly bordered with yellow, that of the second of equal 
width throughout, that of the third, and a little more so of the 
fourth, slightly widening at sides, that of the fifth considerably 
dilated laterally as far as the middle of the segment; ventral seg 
ments blackish brown, the first one yellow with a brown patch in 
its middle, the four following segments with posterior margins nar- 
rowly yellow, obsolete on the fifth, base of second also with a 
narrow yellow, transverse band not reaching the lateral margin; 
Ovipositor dark brown, its two oval apendices reddish brown, To 
the naked eye the whole insect appears almost bare, and its ground 
color is in no way concealed by the minute pubescence. Mesono- 
tum rather densely, scutellum very sparsely, the whole blackish 
portion of second and third dorsal, fourth dorsal at base and sides, 
fifth dorsal at the extreme base only and the blackish portions of 
ventral segments, provided with minute blackish brown pubescence; 
the posterior yellow margins of dorsal and ventral segments with 
yellow pubescence, extending on the fourth dorsal to the middle of 
the: black portion, on the fifth dorsal it extends almost over the 
whole segment; on the sides of the first segment and on the ovi- 
Positor the pubescence is longer and yellowish. Legs rufous, 
cox black, middle and hind trochanters, apical two-thirds of 
hind. femora, dark brown, basal two-thirds of all the tibie pale 
yellow; the pubescence yellow; hind femora not unusually thick- 
ened and the hind metatarsi moderately dilated. Halteres brown 
with yellow knob. Wings brownish anteriorly, greyish hyaline pos- 
teriorly; the brownish color is limited behind by the first, by the spu 
Tlous as far as the anterior crossvein and by the third veins; apex of 
the sub-marginal cell is, however, greyish; besidesasmall spot across 
the greyish hyaline portion at the outer third of the first basal cell, 
On veins at base of first and last posterior and discal cells, on vein 
closing the discal cell, and faintly along fifth vein in the second 
basal cell, brownish; veins dark brown, somewhat reddish brown 
at base of wing; posterior angle of first posterior cell less than a. 
tight one, the vein closing the same cell almost straight and rec 
tangular with the third vein, sending no stump of a vein inwards, 
but there is merely an indication of a fuscous dot a little above the 
middle: posterior crossvein bent inwards, making each outer angle 
of discal cell much less than a right one, and immediately before 
the Same crossvein the fourth vein sends a short stump of a vein 
into the first posterior cell; from the posterior angles of the first 
Posterior and discal cells a similar stump of a vein outwards; ante- 
Nor crossvein situated not more than twice its length from base of 
