70 Records of the Indian Museum. [Vol. IV, 



Thorax. Ground colour var^-ing from yellowish gre^^ to whitish 

 gre}'. Seen from in front, a dorsal pair of moderately narrow, 

 well separated stripes, which are normally mumm3'-brown, but 

 vary sometimes to the extent of being nearly blackish. These 

 stripes extend from the anterior margin nearly to the posterior 

 one. On the outer side of each stripe is a similar stripe, distinctly 

 interrupted at the suture, in front of which it becomes sometimes of 

 a thickened cigar shape, placed diagonalh-, pointing to the humerus, 

 sometimes it retains its direct direction forwards as a continuation 

 of the portion behind the suture. It often also takes the form of an 

 irregularh^ shaped spot. At the posterior ends of these dorsal 

 stripes are two irregular black patches, im mediated in front of the 

 scutellum. Towards the side of the dorsum, just above the wing, 

 is a concolorous brown streak, sometimes distinct enough to form 

 a short third stripe. 



Viewed from behind, the dorsal space between the two median 

 lines appears much lighter, varying from light grey to even quite 

 whitish. vScutellum concolorous with thoracic dorsum, generally 

 with an irregular mummy-brown triangle at base. Chcciotaxy. 

 Humeral bristles 3, post-humeral i (weak), praesutural i, noto- 

 pleural 2, dorso-central with onh^ the hindermost in each row really 

 strong; a distinctly" less strong one in front of it, whilst the remainder 

 are bareh' larger than the small bristles dispersed generally over the 

 whole dorsum, but there is usually a single moderately strong one 

 just in front of the suture. Two moderate sized inner dorso-central 

 bristles. Of the side bristles, there are 4 placed above the wing 

 more or less in the shape of a diamond, all of which I should be dis- 

 posed to term supra-alar, or possibh' 3 supra- alar and i postalar. 



The mesopleura bears a hinder row of about 12, diminishing 

 in size from above downwards except that the strongest ones are 

 generally the 2nd and 3rd, or the 3rd and 4th. Some long stiff hairs 

 on front part of mesopleura. Sternopleura with a strong l:)ristle on 

 upper hind corner, a strong one on lower hind corner, in compan}' 

 with some shorter comparatively strong ones, but which are much 

 longer than the ver}^ small bristles co\'ering the whole sternopleura 

 and, to a greater or less extent, the whole of the side of the thorax. 



Scutellum with a strong basal bristle each side, near margin, 

 with a less strong prsebasal one in front, and the usual apical pair 

 which are very strong. Occasionally a pair of bristles correspond- 

 ing to dorsal macrochsetae stand out a little stronger than the 

 microchsetae covering dorsum of thorax and scutellum, but in most 

 specimens they are b}- no means obvious. 



Abdomen. Normally (and generally) yellowish grey ; some- 

 times much more 3^ellowish, at least on the dorsum ; sometimes 

 approaching slate-grey, either wholly or towards the sides of the 

 segments ; seen from behind at a low angle, sometimes quite whitish. 

 The markings, although following a general plan, are ver^^ variable. 

 In what may be regarded as the typical form., there are on both the 

 2nd and 3rd segments, a basal mark in the shape of a moderately 

 wide short dorsal stripe, which reaches to about the middle of the 



