174 



Blackish-brassy. Face silvery-white in male, yellowish-grey in female. 

 Antenna with the first two joints tawny yellow, the third black ; this 

 short, as also the penultimate joint of the arista. Thorax above dusted 

 with ferruginous. Wings dark hyaline ; costal vein near the base with 

 a black swelling, not reaching to the junction of the subcostal ; discal 

 transverse vein very faintly curved, shaded with brown, oblique in the 

 male ; a brownish dot on the flexure which lies before the middle of 

 the subapical vein. Abdomen chequered. Lamellse dusky, broad and 

 rounded at the end ; forceps nearly hidden by the obtuse dilated edge 

 of hypopygium ; aculeus as it were bifid, the outer lobe being nearly 

 as long as the internal spine-shaped one, slender, the tip pointed and 

 slightly incurved, outside before this a recurved spine-shaped tooth, 

 and between the two a small obtuse one. Coxae and femora olive- 

 black, with hoary gloss ; femora ferruginous at the tip, the middle pair 

 to the half-length ; these with 3 or 4 spines in front, the hind pair 4 or 

 5 ; tibia and anterior metatarsi ferruginous, tipped with black, hind 

 tibiae with a dusky spot at the base. In the male the fore tibia is des- 

 titute of spines, and glossed with white as well as the metatarsus, which 

 is as long as the succeeding joints together ; these are much dilated (the 

 third and fourth broader than long), deep black, silvered in front, fringed 

 above with black, the tip of the last with white, hairs. 



On moory uplands of Wicklow. In Mr. Holiday's collec- 

 tion. (I.) 



42. notatus, Stn. isis, xxviii. 269. 2 (1831); Ztg.; Stt. plu~ 

 mipes, Hal. z. j. litoreus, Hal. e. m. Obscure anescens, thorace ferru- 

 ginoso, antennis basi subtus, genubus, tibiis et metatarsis anterioribus basi, 

 tibiisque posticis medio ferrugineis, femoribus posterioribus pluri-spi- 

 nosis, alis vena transversa punctoque fuscis, lineola costali atra prope 

 basim ; Mas. tarsi antici articulo ultimo antice argentato, hypostomate ar- 

 genteo; Fcem. hypostomate cano. Long. 2^ ; alar. 4^ lin. 



Blackish-brassy. Face silvery-white in male, dull white in female. Cilia 

 of the lower orbit whitish (yellow in the allied species). Antenna 

 black, the lower edge of tJie Jirst joint and base of second reddish-ferru- 

 ginous ; the third joint short, as is the penultimate. Thorax above 

 dusted with ferruginous. Wings dark hyaline; costal vein near the base 

 with a black swelling, not reaching to the junction of the subcostal ; 

 discal transverse vein straight and perpendicular, shaded with brown, 

 a brownish dot on. the flexure which lies before the middle of the sub- 

 apical vein. Abdomen chequered. Lamella? dusky, broad, rounded 

 at the end ; forceps nearly hidden ; aculeus as it were bifid, the outer 

 lobe being nearly as long as the inner one, broad, compressed, notched 

 at the tip, with the inner tooth acute incurved, the outer broad 

 rounded, outside before this a recurved spine-shaped tooth. Coxaa 

 and femora olive-black, a little hoary ; tips of anterior femora (a mere 

 dot on the hind pair) and basal half of the tibia and anterior metatarsi 

 reddish-ferruginous, the base of the hind tibia again blackish ; the middle 



