PSYCHODA. 229 



The bifurcations of the upper branch of the second vein, and of 

 the fourth vein, occur just before the middle of the wing. 



Length nearly 1 milliin. 



Described from a perfect unique female (?) in the Indian 

 Museum collection, captured by Dr. Annandale in the Museum, 

 30. vii. 08. 



The type still remains the only known specimen. 



161. Psychoda.bengalensis, Brun. (PI. IV, figs. 6 & 8.) 



Psychoda bengalensis, Brunetti, Rec. Ind. Mus. ii, p. 370 (1908). 



<3 $ . Body entirely clothed with hairs, varying from yellowish 

 grey to whitish, arid of a nature varying from, soft long hairs to 

 bristly ones, which latter on some parts, and around the tip of 

 the abdomen, are distinctly scale-like ; in certain lights some 

 of the scale-like bristles appear blackish or even wholly black. 



Head : eyes black, with very large facets ; frontal groove very 

 narrow, with long greyish hairs ; lower part of head covered with 

 long hairs. Antennae fifteen-jointed ; scape of two larger egg- 

 shaped joints ; the flagellum of ten joints of nearly uniform size, 

 each shaped like a long-necked flask, and three further very minute 

 joints, invisible except under a microscope. Each joint of the 

 whole antenna bears a rather thick verticel of hairs. Palpi of 

 four joints of equal length, with some hairs ; last joint very thin, 

 pointed. Abdomen : the genital process of the male with superior 

 appendages consisting of two subequal joints, the proximal joint 

 cylindrical, often concealed in a vertical position in the body, 

 distal joint sickle-shaped, its ventral edge being somewhat sinuous. 

 Inferior appendages very long, arising from an elongated, broad 

 ventral plate; themselves sickle-shaped, clothed with long fine 

 hairs at their base, and bearing very minute straight bristles on 

 their ventral surface, each appendage terminating in a single, 

 short, flattened, almost triangular spinule. The ovipositor of 

 the female consists of a pair of very small, pointed, chitinous 

 appendages, which it is somewhat difficult to distinguish amidst 

 the hairs. Legs of the same colour as the body, clothed rather 

 thickly with concolorous scales and with numerous black bristles, 

 the former being thickest on the tibiae and tarsi. Wings with 

 all the veins bearing a double row of hairs, pointing respectively 

 anteriorly and posteriorly.* The fork of the upper prong of 

 the 2nd longitudinal vein originates a little before the middle 

 line of the wing ; and the fork of the 4th longitudinal vein 

 originates a little behind this middle line, but the linear space 

 between the two forks varies in different specimens. A few black 

 bristly hairs, forming a small black spot, occur at the tip of each of 



* In the figure of the wing of this species (Eec. Ind. Mus. ii, pi. xxiv, fig. 1) 

 no auxiliary vein is shown, although it is, of course, distinctly present, 

 extending at least to a point beyond the fork of the 2nd longitudinal vein. 



Q2 



