g48 WALKER Oi^ 



Var. e. — Fern, abdomen cupreum, seginento P. apice aeneo-viridi, 

 2'. disco purpurascente : femora postica basi rufa. 



Common near London, in the spring, summer, and autumn, 

 on trees, plants, &c. Its scent has been compared to that of 

 balm. 



Sp. 2. Sep. fulgens. Prcscedenti simUis, hypostomate rufo. 

 Sepsis fulgens. Hoffmansegg, Meigen. Dipt. Europ. V. 287. 

 With the preceding species, in nearly equal abundance. 



Sp. 3. Sep. hilaris. Prcecedenti similis, tarsis omnibus rufis. 



Sepsis hilaris. . . . Meigen. Dipt. Europ. V. 288. 

 Micropeza vivida, var. ? R. Desvoidtj, Essai sur les Myo- 

 daires. 742. 4. 

 It has been found near London. 



Sp."4. Sep. flavimana. Prcecedenti similis, pedibus anticis 

 femoribusque 4 posticis basi flavis. 



Sepsis flavimana. Meigen. Dipt. Europ. V. 288. 



July ; south of France. It has been found near London. 



Note. — The three preceding species are perhaps only varieties 

 of Sep. cynipsea. 



Sp. 5. Sep. raacuhpes. Mas et fem. Nigro-csnea, hyposto- 

 mate nigro, abdomine cupreo, antennis fuscis, pedibus 

 nigris, anticis flavis fusco maculatis, alis hyalinis. 



Caput antice nigrum : oculi rufo-fusci : antennas fuscae, seta nigra : 

 thoracis latera metathoracisque scutellum senea, nitida : abdomen 

 nitidum : pedes antici flavi, femoribus supra fusco maculatis, tarsis 

 nioTO-fuscis ; coxae flavae ; femora 4 postica nigro-aenea, basi et 

 fern, apice flava ; tibiae 4 posticae nigro -fuscae ; tarsi concolores, 

 subtus nigro-pubescentes : alae hyalinae, basi fuscae : halteres 

 flavi. (Alarum longitudo, 1| — 2 lin. corporis, 1 — \\ lin.) 



Var. /3. — Mas, pedes postici tibiis tarsisque nigris ; tibiae anticae 

 fusco cingulatae. 



Var, y. — Fem. pedes intermedii tibiis apice tarsisque basi flavis ; 

 tibiae anticae fuscae, basi flavae. 



July ; near London. September ; near Ambleside, West- 

 moreland. 



