THE CANADIAK ENTOMOLOGIST. 45 



Limneria argentifrons, Cress J — One specimen, without abdomen, labelled 



/laviricta, but cannot be that species. 

 Limneria compacta, Prov. — $ described from coll., Taylor. 

 Limneria dubitata, Cress. — One $ . 

 Limneria fugitiva. Say. — ^One $ . 

 Limneria major, Cress. — One ? . This is labelled L. genuitia, Say, but 



there does not seem to be any species described under that name, 



although Provancher also quotes it in his work. 



Limneria valida. Cress. — One 9 • 



Angitia americana, Ifargt?i.—Ty^Q 9 in my coll. 



Pyracmon vancouverensis, Hargtn. — Type $ in my coll. 



Banchus superbus, Cress. 



Banchus polychromiis, Prov. — Two $ s. Provancher's type not 

 seen, but it seems undoubtedly, from description, to be a somewhat 

 immature example (in whicli the black is not fully developed) of this 

 well-marked yellow and black species. 



Mesoleptus fasciatus, Prov. — ? described from coll., Taylor. 



Phobetes canadensis, Hargtfi. — Type ? in my coll. 



Mesoleius Isetus, Cress. — $ described from V. L coll., H. Edw. 



Mesoleius truncatus, Prov. 



Mesochorus truncatus, Prov. — 9 described from coll., Taylor. 



Tryphon communis, Cress. — Two $ s. 



Syrphoctonus agilis. Cress. ( Bassus). — ^Three $ s. 



Syrphoctonus pacificus, Cress. (Bassus). — c^ described from V. I. coll., 

 H. Edw. 



Coleocentrus occidentalis, Cress. — ? described from same coll. 



Rhyssa persuasoria, Linn. — One $ . 



Ephialtes pacificus, Hargtn. — Three types $ and one .-T in my coll. The 

 male is a very small specimen. 



Ephialtes thoracicus. Cress. — 9 described from V. I. coll., H. Edw. 

 Ephialtes tuberculatus, Foiirc. — Two $ s. 

 Ephialtes vancouverensis, Hargtn. — Type $ in my coll. 

 Theronia fulvescens. Cress. — Fourteen % and four ^ specimens. A 

 common insect, infesting Clisiocampa, Orgyia, Menapia, etc. 



