$4 MYCETOPHILID^E. 



a little broader at the tip, with a circlet of bristles ; 2nd joint 

 cup-shaped, with a row of bristly hairs near the tip. The first 

 few joints of the flagelluin yellowish, gradually darkening to black 

 (at about the 5th joint), the remainder Avholly black, the whole 

 flagelluin with whitish pubescence. Thorax shining light brownish- 

 yellow ; towards each side a very large elongate oval shining black 

 spot, occupying about two-thirds the length of the dorsum, sepa- 

 rated by a moderately broad space. The whole dorsum with 

 rather long stiff yellow hairs. Scutellum blackish, broadly yellow 

 .along the whole base, posterior margin with four very long yellow 

 bristles. Metanotum and pleurae blackish. Sides of thorax 

 yellowish. Abdomen : the 1st segment pale yellow, the remainder 

 blackish, with pale pubescence on dorsum and longer yellow hairs 

 along the sides. Belly black, with yellow hairs, yellowish at base. 

 Of the genitalia two rather large blackish lamellae are visible, with 

 stiff bristly hairs at their tips. Leys wholly pale yellow, except 

 the tarsi which are a little darker, and there is a trace of blackish 

 colour about the trochanters. Wings pale yellowish grey, a little 

 more yellowish on the basal anterior part. Veins brownish yellow, 

 venation normal.* Halteres missing. 



Length 2| millim. 



Described from a single female taken by Dr. Annandale at 

 Kurseong, 20. vi. 10. 



Type in the Indian Museum. 



The yellow thorax and large black side-spots make this species 

 appear very like Leia arcuata, Brun., but the absence of the con- 

 spicuous arcuate blackish stripe on the wings at once distinguishes 

 it. 



Genus CLASTOBASIS, Skuse. (PL II, fig. 5.) 



Clastobasis, Skuse, Proc. Linn. Soc. N. S. Wales, (2) v, p. 017 

 (1890). 



GrENOTrPE, C. tryonii, Skuse ; by original designation. 



Head roundish, flattened in the fore part, situated deep in the 

 thorax ; front broad, the anterior border produced triangularly, 

 the point between the joints of the scapus ; vertex high ; eyes 

 oval ; ocelli large, the middle one smaller, situated almost, in line 

 with, but somewhat behind the other two. Palpi prominent, four- 

 jointed ; 1st joint small, 2nd tolerably long and robust ; 3rd a 

 little longer than the second, more slender ; 4th very long and 

 slender, about equal in length to the 2nd and 3rd combined. 

 Antennas slender, porrected, arcuated, 16-jointed ; 1st joint of the 

 scapus obconical, longer than the second, the 2nd cupuliform, 

 both setiferous at the apex ; flagellar joints cylindrical, progres- 

 sively diminishing in thickness, with minute downy pubescence. 



* The venation agrees with the figure of the wing given by Johannsen (Gen 

 Insect., Fasc. 93, pi. 5, fig. 14). 



