22 The Scottish Naturalist. 



and a light brown stripe on the hinder part of the back. The 

 differences may be attributed to the latter not being so near to 

 their change as those from R. tomentosa. 



The pupa-case'\s yellowish or straw-tinted, shining, somewhat oval 

 or cylindrical, the fore extremity conic, with two small white scales, 

 one at each end, the sides behind with an indistinct interrupted 

 keel ; segments flattish, not very distinct, more so beneath ; trans- 

 versary striated or furrowed with several waved wideish ridgelets, 

 which are most distinct on the underside, and are connected on 

 the sides by retiform meshes ; hinder end rough, roundish or 

 sub-conic, the stigmata not far apart, scarcely raised ; the anus 

 cleft elliptical, bounded by a rim ; length 1^-2 lines. The fly 

 is the Tephritis alter nata, Fallen, Ortal. 5, 3, which Loew. has 

 shown (vide Ray. Soc. Reports on Zool. 1844, 391,) to be the 

 same as the Trypeta continua, Meig. Europ. Zweif. Ins. V., 312, 1. 

 It is a very pretty insect. 



The specific character given by Meigen is u Mel lea, metatho- 

 race nigro; a lis fasciis quatuor fuscis ; secunda minima; basi 

 puncto fusco." The male is honey yellow ; face pale yellow 

 with a white reflection, a slight ridge on each side, sloping out 

 from the antennae, a long and a few short bristles about the 

 mouth ; front nearly level with the eyes, with three black stiff 

 hairs on each side lying across it, and two lying backwards ; a 

 minute eyelet spot, which has four stiff hairs directed back- 

 wards ; two very long ones on the hinder margin of the head. 

 Third joint of the antennae sub-oblong, straight above, arched 

 beneath, with a short point at the tip turned upwards ; seta 

 longish, black, short, pubescent. Eyes light green with an 

 olivaceous cast ; brown after death. Thorax slightly oblong, 

 but moderately convex, the back honey-yellow, and bearing a 

 short appressed pubescence ; the sides, the region before the 

 wings, and the scutellum, somewhat sulphur yellow, (but this dis- 

 tinction is scarcely visible in dried specimens), with several long 

 black stiff hairs, and four on the scutellum ; metathorax with 

 two shining quadrate black patches, divided by a yellow line. 

 Abdomen not so wide as the thorax, sub-oblong, the tip conic, 

 lighter tinted than the back of the thorax, hinder edges of the 

 segments paler ; a shining black blotch at the tip, intersected 

 by a yellow spot ; with scattered appressed pubescence and a 

 row of longish black bristles near the hinder edges of the seg- 



