188 Mr. A. H. Haliday on new British Insects, 



On sandhills along the east coast of Ireland, among the stems of 

 the sea reed ; May — August. 

 Ochthiphila geniculata, C. No. 5. ibid. 



0. cana antennis palpis pedibus nigris, genubus flavis, m.f. ; ab- 

 domine qudrifariam nigro-punctato, /. ; bifariam obsoletius 

 punctato, m. Long. 1' 3 lin. 

 On grassy slopes of the Sugar-loaf mountain, county Wicklow, 

 May. 



Gen. Heteroneura. Subj. Clusia (Cleora, C. App. 282.) 



Tibiae cilio praeapicali nullo. Alarum nervi transversi subremoti. 

 Sp. 1. H.flava Heteromyzaflava,Meig.\i.46. Heteroneura spurca t 

 Ent. Mag. i. 171. 



Gen. Opomyza. Subg. Tethina, C. App. 281. 



Facies impressa, epistomate prominulo nudo. Peristoma elonga- 

 tum. Labium cylindricum bigeniculatum. Antennae brevissimae 

 articulo 3° suborbiculato arista gracili subnuda. Alee apice rotun- 

 datae : nervus transversus ordinarius ab alae margine distans. 

 Opomyza illota, C. 1338. 27. App. 281. 



0. Tethina canescens fronte antennisque ferrugineis, facie palpis 

 tarsis halteribus albidis, alis albis, m.f Long. $ — 1 lin. 



Somewhat like Oscinis (Siphonella) albipalpis. 



In the flowers of Cakile maritima and Convolvulus soldanella ; Kil- 

 liney Bay, county Dublin ; June. 



Gen. Di ast ata. Subg. Camilla, C. 1337 b . App. 281. 



Tibiae cilio praeapicali nullo. Antennae decumbentes facie bre- 

 viores, articulo 3° oblongo, arista pectinata. Labium incrassa- 

 tum. 



D. glabra. Drosophila id. Fall., Geom. 8. 12. Diastata cerata, 

 C. App. 281. 



Blarney, in July ; also in England ; F. Walker. 



Obs. This species, though arranged under Drosophila by 

 Fallen and Meigen, wants the most prominent characteristics 

 of that genus, viz. the hirsute eyes and serrate caudal plates. 

 I have therefore referred it to Diastata, 

 Spheerocera scabricula, C. 1350. 3 b . Ent. Mag. iii. 320. 



Having lately met with this species in abundance, I find 

 that the specimens from which my description was drawn were 

 pale-coloured from immaturity ; but the form of the head and 

 hind tarsi, the wings and the white arista will characterize the 

 species beyond mistake. 



