126 Memoirs of the Indian Museum. [Vol. Ill, 



black beneath ; metanotum black, reddish yellow on the sides ; sternopleura with a 

 blackish spot beneath. Scutellum yellow, narrowly reddish at the base. All the 

 bristles black, not very strong ; propleura with long pale hairs. Squamulae white ; 

 haltères reddish yellow. 



Abdomen reddish, with pale pubescence and black short bristles ; the 2nd to 5th 

 segments in the female and 2nd to 4th in the male show at the base a narrow com- 

 plete transverse black band ; the lateral margins also narrowly black ; venter reddish ; 

 ovipositor reddish, almost bare ; male genitalia black ; in the male the black cross- 

 band of the 4th segment is often abbreviated on the sides. 



Legs yellow, the apical half of femora and the tibiae darkened, reddish; bristles 

 and hairs black ; front femora in the male with many, in the female with few weak 

 bristles beneath ; the serrulation of the four posterior femora begins after the middle. 



Wings hyaline, with the following markings : a yellow irregular band at the base 

 from the stigma to the anal cell, interrrupted by the hyaline second basal cell ; along 

 the anal cell this band is prolonged in a dark point upon the 6th vein. The stigma is 

 wholly yellow. In the middle of the wings is a narrow brown cross-band, which 

 begins on the fore border a little after the stigma and extends in the form of an arch 

 over the small cross-vein to the hind margin ; this band is prolonged along the costa 

 on the fore border to the end of the 2nd vein. At the apex of the wings is a large, 

 rounded, brown area which extends from the tip to the posterior cross vein and from 

 the 3rd to the 5th vein, filling up the apical portion of the discal cell, two- thirds of the 

 first posterior cell and almost the whole of the 2nd posterior cell, the inferior external 

 angle alone excepted. 



Several specimens of both sexes from Gopkuda Island, Lake Chilka, Orissa, August 

 7— 15th, '07; some others from Calcutta in June, labelled by Bigot Dacus pavoninus ; 

 a male from Rajmahal, Bengal, July 6th, 1909 (A^. Annandale). Some additional 

 specimens from Gangapur Pattia and Bindukhera, Naini Tal distr., base of W. 

 Himalayas, 3 — 4-iv-i9io. 



I have given to the species the appropriate MS. name of Mr. Bigot. 



14« Chaetellipsis, n. gen. 



Easily distinguished from any other by the absence of the or. and the thickly 

 pilose frons. 



Head broader than high ; eyes oval, a little compressed, with the anterior facets 

 enlarged ; antennae inserted below the middle of the eyes, the frons therefore longer 

 than the face ; face flat, the epistome not prominent ; frons broad, fiat, thickly pilose 

 in its whole expanse. Antennae very short, the 3rd joint scarcely double the 2nd, 

 rounded ; arista long, pectinate on the upper side only ; no oc. and no or.; vt. 2, the 

 inner three times as long as the outer ; pvt. weak, parallel ; bristles of the occipital 

 row weak, yellow ; genal bristle almost indistinct ; palpi without black bristles. 



Thoracic chaetotaxy complete, the bristles strong ; ^c. a little before the middle 

 between the transverse suture and the scutellum ; 2 mpl. ; pt. strong ; scutellum flat, 

 triangular, with 4 bristles. Abdomen short, round, convex and narrowed at the 



