270 LEPTID^ 



each of the four or five basal segments and is not extended to the front or 

 hindmargin of any segment, but the fourth and fifth segments usually become 

 rather darker orange, and the spot on the fifth segment is the largest and is 

 sometimes united with the black sidemargins ; sixth segment black, with 

 usually an obvious dark orange spot on the middle of the hindmargin, 

 seventh segment all black or with a very narrow obscure orange hindmargin ; 

 eighth dorsal segment forming a short basal plate to the genitalia ; side- 

 margins with an almost isolated blackish spot on the basal segment, and then 

 with a more or less irregular narrow black line extending from near 

 the base of the second segment to the end of the fourth segment, 

 on the fifth segment more widely blackened especially near the base, 

 and entirely black on the sixth and seventh segments in connection with 

 the black dorsal part of those segments. Belly yellowish orange on the 

 three or four basal segments, but usually becoming a little darker on 

 the fourth segment ; fifth segment black with narrow orange margins, 

 sixth and seventh all black. Pubescence on all the dorsal part of the 

 abdomen composed of short depressed black bristles which are rather 

 dense and equally distributed, but there are longer and less depressed 

 black hairs at the sides and especially on that part of the two basal 

 segments ; on the belly it is short and less dense, with a few pale hairs inter- 

 mixed on the disc of the second segment. Genitalia small and short, 

 beginning with a short dull black or greyish black basal plate (which is 

 probably the remains of an eighth abdominal segment) which has an obscure 

 ferruginous margin, and after that a pair of short dull black lateral lamellae 

 which bear an elongate dull orange second joint, and these second joints 

 usually curve inwards and meet and bear minute pale pubescence ; the basal 

 part of these lateral lamellaa bears short black and yellowish bristly 

 pubescence ; between the lateral lamellai are two short rounded dark brown 

 lamellae, and there is a dull black basal ventral plate extending all across. 

 Other variations of the abdominal markings are given later on. 



Legs dull orange • front coxae obscure pale orange or pale brownish, 

 covered with pale yellow dust and bearing fairly long and abundant pale 

 yellow pubescence on all the front part (except on a shining black or orange 

 space at the base anteriorly towards the inner side), trochanters darkened ; 

 middle coxae mainly blackisii but orange about the tip, with the usual pale 

 pubescence in front but usually (though not always) with some black bristly 

 hairs near the tip, tibial spurs clull orange ; hind coxa3 orange but sometimes 

 greyish black or with blackish reflections outside, and usually with a feAV 

 black hairs intermingled with the yellow hairs outside about the tip ; posterior 

 trochanters partly or completely blackened ; hind femora usually slightly 

 blackish at the tip, and the hind tibial more so but indefinitely ; spurs 

 brownish orange ; tarsi blackish but rather obscurely orange at the base of 

 at least the anterior pairs. Pubescence practically none, but the legs wholly 

 beset with tiny black bristles except on some inconspicuous bare lines on the 

 anterior femora, and there are rows of tiny black bristles down the tibiaj 

 which are slightly longer than the ubi([uitous bristles; front tarsi with a 

 few " touch-hairs " beneath. Pulvilli dull brown ; claws darker brown. Other 

 variations of colour are noted later on. 



Wings with a distinct orange tinge which is most conspicuous along the 

 fore part as far as the tip of the marginal cell, but without any distinct stigma ; 

 veins obscure orange, growing brown towards the tip of the wing and towards 

 the margin after about the tip of the subcostal vein; costal and sul)Costal 

 veins with minute black bristles as in L. scolopacea ; alulie with a rather 

 conspicuous orange or brownish yellow marginal line. Squamaj (alar) dull 

 glassy yellowish with usually a darker orange margin on which is a moderate 

 pale yellow fringe, and at the base on the upper part with a rather elongate 

 triangular blackish space ; thoracal squamae only represented by the bare dull 

 yellow frenum. Halteres orange or slightly darker. 



9 . Similar to the male but altogether paler and with more testaceous coloring. 

 Frons greyish yellow, fully one-third the width of the head at the vertex and 

 with the sides almost parallel down to the transverse suture a little above the 

 antenniS3, but from that point downwards the eyes gradually diverge until 



