THE CANADIAN ENTOMOLOGIST. 59 



Nematus lineatus, n sp. Female — Length, 7 mm. Rufo-testaceous. 

 Head nearly white below the antennae, and honey-yellow above, palpi 

 dusky ; antennae as long as head and thorax, rather stout, black ; a black 

 spot between ocelli. Thorax orange-yellow ; teguke and angles of pro- 

 thorax white ; a line on median lobe of mesothorax, a spot above inser- 

 tion of posterior wings, the apex of scutellum and adjoining sutures, 

 black ; legs yellow, coxa? and trochanters paler, tips of posterior tibiae 

 and tarsi dusky ; wings hyaline, nervures brownish, stigma pale, third 

 submarginal cell nearly twice as long as first, recurrent nervures received 

 about one-fourth the distance from base and tip of second submarginal 

 cell. Abdomen broad, compressed toward apex, paler than thorax, basal 

 plates and narrow broken dorsal line black, ovipositor prominent. 



One female collected near city on May 5th. 



Fenusa varices, St. Farg. ( melauopoda, Cam.), previously recorded by 

 Mr. Fletcher as introduced from Europe, was observed on Aug. 26th, 

 upon native alders in a swamp not far from the Experimental Farm, and 

 a number of the leaves showed the characteristic blotches caused by the 

 larva:. The species can, therefore, be considered as naturalized. 



Emphytus multicolor, Nort., ( =-- Strongylogastcr multicolor, Nort., = 

 Emphytus hullensis, Prov.) This is one of the species in which varia- 

 bility in wing-venation has led to a redescription. I have the types, $ $ , 

 of E. hullensis, and they agree exactly with the description of S. multi- 

 color. Of six specimens which I have since collected, four have four 

 submarginals, as in S. multicolor, one three submarginals, as in E. 

 hullensis, and the remaining one has thiee cells in one wing and four in 

 the other. As the insect seems to more nearly resemble an Emphytus 

 than a Strongylogaster or Taxonus, I have referred it to the former genus. 



Harpiphorus tarsatus, Say. From a series of specimens taken upon 

 Cornus it seems evident that H. varianus, Nort., and H. versicolor, Nort., 

 are only varieties of this species. My specimens vary much in colour, 

 but even the blackest show more or less trace of rufous. The insect is 

 very active and difficult to net, as it darts to and fro among the bushes. 

 On one occasion I heard a rustling of insect wings on a branch near the 

 ground and found it to be caused by two males in pursuit of a female, 

 and I netted the three at one stroke. 



Monostegia maculata, Nort. I have already (Insect Fife, Vol. II., p. 

 227) discussed the variation in the wing-venation of our common Straw- 

 berry Sawfly, and a further examination of the species seems to indicate 



