CECIDOMYIA. 79 



transverse vcinlet very pale at the middle of the subcostal vein ; cubital 

 vein curs'cd, ending near the tip of the wing; iirst branch of the anal 

 curved to the hind border. Male. Antenna; as long as the body ; joints 

 as long as their petioles. Fern. Antennic half the length of the body ; 

 oviduct very long ; third segment and hind half of the second yellow. 

 Lives iu decayed beech-wood. 



6. riparia, ^Yinn. Linn. Ent. viii. 218. 5 (1853). Fusca, facie 

 fulva, palpis albidis, antennis 15-16-ai'ticulatis, thoracis lateribus car- 

 neis, alls limpidis, halteribus flavo-fuscis, abdomine fulvo, pcdibus nigris 

 subtns albidis. Long. |— f lin. 



Broicn. Wings whitish in some aspects, with blackish-grey down ; 

 veins brown ; transverse veinlet very slight and indistinct, situate beyond 

 the middle of the subcostal vein ; cubital vein ending at some little 

 distance from the tip of the wing ; second branch of the anal curved 

 abruptly and slightly obliquely to the hind border. Male. Antennfc 

 fifteen to sixteen-jointed ; joints towards the base as long as thidr pe- 

 tioles, rather shorter towards their tips; cubital vein hardly curved. 

 Fern. Antenna; (ifteen-jointed ; cubital vein distinctly curved. Oviduct 

 elongated, without valves ; second and third joints yellow. 



Inhabits tlie male blossoms of Carex rijjaria. 



7. Persicarise, L. S. N. ii. 977. 49 (1767); F.; Gmel. ; Schr. ; 

 Loew ; Winn. Fcem. nigra, facie fronteque fulvis, palpis albido-tlavis, 

 antennis 16-artieuIatis fuscis basi flavis, thorace uigro-cinereo vittis 

 quatuor nigris, alls vix subcinereis venis nigris, abdomine cameo fasciis 

 nigris, femoribus subtus albo-micantibus. Long. 1 hn. 



Fern. Black. Front and face tawny. Palpi whitish-yellow. An- 

 tennae sixteen-jointed, brown, yellow at the base, half the length of the 

 body. Thorax blackish-grey, with deep black stripes in the middle and 

 one on each side. Wings almost limpid, with black down and veins ; 

 costa and hind border stout and black, the latter with a very broad 

 fringe ; transverse veinlet distinct, situate at about the middle of the 

 subcostal vein ; cubital straight, ending at some little distance from 

 the tip of the wing ; second branch of the anal curved to the hind 

 border. Halteres whitish-yellow at the base. Abdomen flesh-colour, 

 with black hairy bands. Oviduct elongated, without valves, yellow 

 towards the tip. 



lufests the leaves of Poli/fformm mnpMhmm. 



8. marginem-torquens, Brerai, .Denkschriften der Schweizer- 

 ischen Gesellschaft fiir Naturwissenehaften, pi. 2. f. 32, 33 (1847); 

 Winn. Hardy, Scot. Gard. iii. 78 (1854). Nigra, albo-hirta, facie 

 thoracis lateribus scutello et metathorace fulvis, palpis albidis, antennis 

 pallide fuscis 15-16-articulatis, alls subcinereis venis fuscis costa valida 

 nigra, abdomine sordide llavo (in mortuis obscuriore), pedibus nigro- 

 fuscis subtus albis. Long. ~-^ lin. 



Black. Sides of the thorax, scuteltnm, and m-elathorax taicny. Wings 

 with blackish-grey down ; transverse veinlet very pale, situate in the 



