THE SEPSID.^. 255 



Mas, — Nigra : oculi ocellique rufo-fusci : antennae nigrae : abdomen 

 glabrum, apice setis vix brevioribus vestitum : pedes nigri ; femora 

 antica subtus basi 4-dentata ; tibiae anticae subtus dentatse et 

 spinosas, supra spina elongata valida armatae ; tarsi subtus fusco 

 pubescentes, anticum articulus 1"*. elongatus, 2"^ 3°. brevier, 

 alas subfuscae : halteres flavi. 



Fern. — Nigro-aenea : pedes simplices. (Alarum longitude, 2 lin. ; 

 corporis, 1^ lin.) 



July ; on grass beneath trees ; near London. 



Sp. 3. Them, minor. Mas et fem. Nigra, nitida, ahdomine 

 nigro-ceneo, apice in utroque sexu nudo, alis subhyalinis 

 aut suhfuscis. 



Sepsis minor. Haliday, Ent. Mag. II. 170. 



Oculi ocellique rufo-fusci : antennas nigrae : abdomen glabrum : 

 pedes nigri ; maris, femora antica subtus spinosa, tibiae anticae 

 medio subtus bidentatae : alas subhyalinas : halteres flavi. (Alarum 

 longitude, U — It lin. ; corporis, f — 1 lin.) 



Var. $. — Mas et fem. alae subfuscse. 



September ; on grass beneath trees ; near London. 



Sp. 4. Them. Leachi. Mas. Nigra, nitida, pedihtts basi 

 riijis, abdominis apice setoso. 



Sepsis Leachi. Meigen, Dipt. Evrop. V. 291. 14. 



Antennae nigras : pedes antici femoribus tibiisque subtus dentatis : 

 alas subhyalin^ : halteres flavi. (Corporis longitude, 2 lin.) 

 It has been found near London. 



Genus V. — Saltella, R. Desvoidy. 



Mesothoracis scutellum usque ad abdomen productum ; metathorax 

 supra invisum : abdomen sessile, depressum, fem. elengate- 

 ovatum : pedes breves, inermes ; femora subclavata ; tibiae rectas : 

 alae breves. 



Sp. 1. Salt, nigripes. Fem. Nigra, abdomine nigro-ceneo, 

 antennis fuscis, pedibus nigris, alis albis. 



Saltella nigripes. R. Desvoidy, Essai sur les Myodaires, 



747. 2. 



Obscura : oculi rufo-fusci : ocelli rufi : proboscis fusca, apice rufa : 

 antennae fuscae, seta nigra : mesothoracis scutellum apice rufum : 



