182 MONOGRAPHIA CHALCID1TUM. 



Trixa . September, North Wales. The same species 



as that which Dr. Leach sent to Meigen, and which the latter 

 described as a variety of T. aariegata, but observed that it 

 might be distinct. 



Themira pilosa, Ent. Mag. Vol. I. p. 254. For Themira 

 pilosa, read Themira superba, Haliday, {Sepsis-idem, E. M. I. 

 170.) and transfer the reference to Themira putris. I am 

 indebted to Mr. Haliday for the correction of this error. 



Psila rufa, Hoffmansegg. September ; on heath near 

 Llangollen, North Wales. 



P. pallida, Fallen. Found near New Lanark, Scotland. 



Diastata obscurella, Meigen. Frequents the dampest and 

 most shady woods. Found during the summer and autumn in 

 Hampshire, Devonshire, and North Wales. 



Phora abdominalis, Fallen. October ; on larches, North 

 Wales. 



Art. XX. — Monographia Chalciditum. By Francis 

 Walker. 



{Continued from page 97) 



-" the green myriads in the peopled grass." 



Sp. 68. Pter. junceus. Fem. Viridis, abdominis discus 

 purpureo-cupreus, pedes jlavi, antennce et femora nigra, 

 alee limpidce. 



Obscure viridis : oculi ocellique rufi : antennae nigra ; articulus l us . 

 basi fulvus : abdomen pupureo-cupreum, basi apice subtus et 

 utrinque viride : pedes lsete flavi ; coxae virides ; trochanters 

 fusci ; femora nigra, apice flava ; meso- et metatarsi apice fusci ; 

 protibise et protarsi sordide fulva : alae limpidae ; squamulae et 

 nervi flava, illae apice fuscae ; stigma minutum. (Corp. long. lin. 

 1 ; alar. lin. lj.) 



Found near London. 



Sectio VIII. — Fem. 



Corpus longum, angustum : caput thorace paullo latius: antennas 

 filiformes, corporis dimidio non longiores ; articuli 5°. ad 10 um . 



