NEMATOCERA. 



H. Jiiiiipcrijia, L. 



' lipitla Jih'i iperiua , Li n n e. 



Cecid. ,, Deg. 



OUgostrophus Jii>i!pt'rifia, Lat. 



Lasioptera „ Mg. 



, Cccid flavimacitlata, Zett. 



H. iiiillcfolii, L\v. = C. ac/iiilecT, Inchbald. 

 The larva inhabit calyx-shaped galls in the axils of the leaves of 

 Achillea millcfoliitiii. 



Besides these there are four other British species, viz. : 

 H. ahrotani, Traill. 

 H. corrn', Gir., the larva; in galls on Co nuts sanguiiica. T/V/d' Kalten- 



bach (i8), p. 295. 

 FI. Eisc/ieri, Fefld., form swellings on the stems of Canw pilcsa. 

 V/cfe (iS), p. 730. 



The \arvx 

 live in spindle- 

 shaped galls on 

 the upper twigs 

 of the juniper, 

 and metamor 

 phose in the 

 galls. Vide 

 Bremi (i), p. 

 24, and Schiner 

 .{7). P- 399- 

 Sub-Genus. — Eirr/iiza, I av. 

 Schiner unites Dirrhiza, Lw., with Epidosis, from which it only 

 differs in this : that the transverse veinlet is plain, and the antennae 

 in ? sessile, and in S only short petioles. 



D. r/iodop/iila, Hardy. 

 This small sub-genus is represented in England by one species 

 only, viz., D. rlwdophila, described by Hardy.* Bergenstamm says, 

 " Lebenweise unbekannt." Found only in England ; another 

 species laterita is found in Europe, habits likewise unknown. 



$ Imago.— Vq\q. ; small ; elegant ; head black ; thorax brown 

 above, with three lines of " griscous " hairs ; scutellum and meta- 

 thorax yellow or pinkish ; abdomen short, light yellow ; legs long 

 and slender, yellowish. Wings wide, with purple iridescence, finely 

 pubescent and fringed. Costal and first longitudinal vein distinct. 

 Antennae black, i8-jointed; first and second joints thick and cup- 

 shaped, gradually getting smaller, last joint ovate, short verticillate 

 hairs. Halteres white. Length \ lin. 



Sub-Genus. — Epidosis, Lw. 

 Walker describes several of this sub-genus, but they are not now 



* Ann. of Xat. Hist., vi. 182 (Larvic possibly form galls on the rose). 



6—2 



