CECfDOMYIA 131 



C. tortilis, Bremi. In excrescences on the leares of Alnus incana. 



C. Cinerearuin, Hardy, Scot. Gard. iii. 14 (1854). Rosettes of the 

 leaves of S. aurita and S. cinerea. 



C. Salicis-folii, Hardy, Scot. Gard. iii. 80 (1854). Woody galls of 

 the leaf of 8. aurita, 8. oleifolia, and 8. Caprea (larva only). 



C. Fraxini, Bremi; Hardy, Scot. Gard. iii. 139 (1854). Forms 

 galls on ash-leaves. Not rare. (E. I.) 



C. Fraxinicola, Hardy, Scot. Gard. iii. 141 (1854). Forms galls on 

 ash leaves (larva only). 



C. Roboris, Hardy, Scot. Gard. iii. 108 (1854). Rolls up the edges 

 of the oak-leaf like a wire. 



C. Rosarum, Bremi; Hardy, Scot. Gard. iii. 168 (1854). 



C. Rhodophila, Hardy, Scot. Gard. iii. 170 (1854). 



C. Oidii, Hardy, Scot. Gard. iii. 170 (1854). Mildew of roses and 

 of the hawthorn. 



C. ? Hardy, Zool. vi. 2166 (1848). Nigra, alis obscuris 



basi subflavescentibus, abdomine carneo, pedibus palEde testaceis. Long. 

 f-1 lin. 



" Allied to C. bicolor, Meig. Female. Head and thorax black ; sides 

 of the latter purplish in life. Antenna rather long, brown ; joints in 

 life pale at the base and at the tips. Wings with a dark tinge, slightly 

 yellowish at the base, finely fringed ; veins coloured with the red matter 

 of the body, two distinctly marked. Halteres pale testaceous. Ab- 

 domen dull flesh-colour in death, purplish in life, dusky at the tip ; a 

 duskier band across each segment, bearing rows of whitish bristly hairs, 

 most distinctly seen at the sides ; beneath, with a row of dusky bristles, 

 bearing points along the centre. Ovipositor as long as one-third of the 

 body, flesh-coloured, slightly brown above, approaching to a bulbous 

 form at the base, narrowed to a point, which is pale. Legs long, 

 slender, pale testaceous. Male. Smaller than the female. Front and 

 the pectus before the anterior legs pale pink-coloured. Eyes and an- 

 tennse black. Abdomen dusky, somewhat hairy, narrower than that of 

 the female, with a row of impressions on each side above, pale at the 

 tip, which is furnished with two hooks. Larva white, with a slight 

 pink tinge, inhabits a large dark green protuberant gall, which rises 

 from the middle of the flower of the tansy, Tanacetum vulgare" 



Found by Mr. Hardy, in the county of Durham, during the 

 autumn. 



C. Danae, Holiday, MSS. Fcem. nigra, antennis moniliformibus 

 pubescentibus, articulis ovatis contiguis, alis oblongis nigro-pubescen- 

 tibus et ciliatis, abdomine maculis lateralibus albis, oviductu sat brevi, 

 pedibus mediocriter longis. 



" Female. Black. Antenna? moniliform, pubescent ; the joints ovate, 

 contiguous. Wings oblong, with black pubescence and marginal cilia. 

 Abdomen with clear white lateral spots (or interrupted bands). Ovi- 

 positor rather short. Legs of moderate length." llaliday, MSS. 



