266 OBSERVATIONS ON PIPUNCULID^. 



argenteo micans : thorax antice utrinque fusco tuberculatus ; 

 scutellum non prominens : abdomen breve, latum, vix pubescens, 

 basi utrinque pilis nonnullis albis vestitum, apice angustius : 

 pedes nigri ; tibiae basi, genua, pulvilli et ungues flava ; hi apice 

 fusci : alae subfuscae, breves, corpore vix longiores ; nervi nigri, 

 basi fusci : squamulae fuscae ; squamae et halteres straminea. 

 (Corp. long. 1§ lin. ; alar. 2 lin.) 



May ; on grass beneath trees ; near London. 



\ X Alee sub costa inter nervum secundarium et nervum auxiliarem 

 fusco maculates. 



Sp. 4. Pip. flavipes. Fem. Ater, pedibus flavis fusco 

 Jasciatis, alis subfuscis latis. 



Pipunculus flavipes. Meigen, Dipt. Europ. IV. 2\. 5. 



Ater, nitens, glaber : caput antice subtus et utrinque argenteo 

 micans : oculi ocellique run* : antennae fuscae, articulus 3 US . flaves- 

 cens, argenteo micans : thorax antice utrinque fusco tuberculatus ; 

 scutellum non prominens : oviductus flavus : pedes obscure flavi ; 

 coxae nigrae, apice flavae ; pro- et mesofemora fusco, metafemora 

 nigro interrupte fasciata ; tarsi articulo 5°. fusco ; ungues et 

 pulvilli flavi, illi apice fusci : alae subfuscae ; nervi nigro-fusci, 

 basi pallidiores ; squamulse et squamae flavae ; halteres pallide 

 flavi, basi obscuri. (Corp. long. \\ lin. ; alar. 2| lin.) 



October ; on grass beneath trees ; near London. 



Note. — According to Meigen's description, the legs are 

 entirely yellow. 



Sp. 5. Pip. pratorum. Mas et Fem. Griseus, pedibus 

 flavis, fusco nigroque cingulatis, alis fuscis. 



Cephalops pratorum . Fallen, Dipt. Suec. Syrph. 15. 1. 

 Pipunculus pratorum. Meigen, Dipt. Europ. IV. 22. 7. 



Griseus, obscurus : caput utrinque, antice et subtus argenteo 

 micans : oculi ocellique rufi : antennae nigrae ; articulus 3 US . 

 nigro - fuscus, argenteo micans : thorax postice et utrinque 

 argenteus, antice utrinque fusco tuberculatus ; scutellum vix 

 prominens : oviductus flavus : pedes flavi ; coxae basi nigrae ; 

 femora nigra, apice basique flava ; tibiae fusco fere cingulatae ; 

 tarsi articulo 5°. fusco, fem. pallidiore ; ungues et pulvilli flavi, 

 ille apice fusci : maris alae fuscae ; nervi nigri, basi fusci ; squa- 



