120 Orthorrhapha brachycera. 



point; it is clotlied with long, pale and liiack hairs. Thorax blacicish 

 with five very indistinct stripes: pubescence biackish, on pleura and 

 sterna fulvous; on the disc there are the usual golden hairs. Præalar 

 callus generally reddish. Abdomen yellowish red , with a rather 

 narrow, black dorsal line, the reddish markings stretching, as a rule, 

 to the hind margin of the fourth segment. Venter yellowish red; on 

 the first and the base of the second segment is a small, black middle 

 spot, which is triangular or of indistinct form; the three last segments 

 black. Abdomen clothed with black and golden hairs chiefly in the 

 usual way, the golden hairs present to a great degree, on the venter 

 black hairs only found on the black apical segments; the triangles in 

 the dorsal line somewhat indistinct. Legs with the femora greyish 

 black; tibiæ rufous, apical half of front tibiæ and front tarsi black, 

 posterior tarsi rufous, darkened towards the ends. Legs clothed quite 

 in the ordinary way with biackish and fulvous hairs. Wings with a 

 distinct brownish tinge towards the anterior margin, and somewhat 

 extended in the wing; veins brownish. Balteres brownish. apical 

 half of the knob paler. 



Female. Eyes green to copper-coloured, with three bands. Frontal 

 band greyish yellow, high and narrow, much narrowed below, about 

 five times as high as broad Ijelow; frontal callus small, highcr tlian 

 broad. prolonged upwards in the linear middle callus. Frontal triangle 

 grey. Antennæ with the third joint somewhat more dilated than in 

 the male. Second joint of palpi (Fig. 37) somewiiat thickened at the 

 base and somewhat curved, the apex rather sharp; the joint clothed 

 with whitish and black hairs. The dorsal stripe on abdonien broader, 

 and the pale triangles more distinct; the reddish markings sometimes 

 considerably restricted, and also the venter with more extended dark 

 colour. 



Length 14 — 17 nnii., according to Brauer it may reach a length 

 of 18 mm. 



The pupa has a length of 18—20 mm. 



This species is in the male recognised by the size of the eye- 

 facets and the two bands and one rudimentary; from Miihlfeldi, to 

 which il bears some resemblance, it is distinguished by the larger 

 head and the greater difference in the eye-facets; also the palpi are 

 characteristic ; the female bears resemblance to tropicus, but the palpi 

 are a little longer, and the high, narrow frontal stripe and the high 

 frontal callus distinguish il; linally in both sexes the hairs on the 

 pleura and sterna are fulvous, and il is to be noticed that the first 

 ventral segment seems always to be pale and not (|uitc black, as 



