328 EDWARD NORTON. 



years ago they had reached the trees of a friend one mile south, while 

 my own trees were entirely deserted by them. Perhaps the crowds of 

 parasites which follow them have destroyed all those left behind. Most 

 of these parasites in leaving the cocoon, burst their way out at the side, 

 cutting a rough passage with their jaws, not clean and sharp like the 

 Lophyrus. 



9. L. abdominalis. 



Lophyrus abdominalis, Say, Long's 2nd Exp., II, 1824, 315. 9- 



"Antenuoe 18-jointed, pale yellowish; thorax with black spots. 



" 9 . — Head reddish yellow; a lai-ge, transverse, black spot above the 

 antennae descending on each side between the antennae and the eyes, to 

 the sides of the mouth, and ascending by two distant narrow lines over 

 the vertex to the occiput; mandibles piceous at tip; thorax with large 

 black spots, occupying the greater portion of the surface ; scutel pale 

 yellow ; wings hyaline, nervures and stigmata fuscous ; thighs dusky at 

 base; tergura yellow, tinged with rufous, whitish on the lateral mar- 

 gin ; segments piceous on their posterior edges. 



"North-west Territory." 



One specimen bred by Mr. Akhurst of New York, on the pine, re- 

 sembles this, except that the abdomen is dark rufous above, the serra- 

 tion of the antennae is not prolonged and is shortest on the 3rd and 4th 

 joints; head wide; hinder spurs as usual, claws with an obtuse tooth 

 removed from the tip ; there are two cross lines, one straight and one 

 oblique on each lanceolate cell ; head and thorax covered with sparse 

 deep punctures. Length 0.28. Br. wings 0.58 inch. 



10. Lophyras pinetum, n. sp. 



Female testaceous, spotted with black, wings hyaline. Male mostly black. 

 9 . Length 0.. 12. Br. wings 0.6i inch. "^ . Length U.28. Br. wings 0.56 inch. 



9 . — Color brownish yellow ; antennae 18-jointed, short, hardly long- 

 er than width of head, serrate, the teeth prolonged, (about as long as 

 width of the joint), tooth of 8rd article as long as any; color black, 

 most of 3rd article pale; head without black lines; a piceous stripe on 

 each side-lobe of mesothorax ; scutel pale ; sutures of metathorax and 

 most of tergum dark blackish brown, the latter with paler spots in 

 middle; edges of tergum, body beneath and legs pale yellowish, fem- 

 ora darker; hinder spurs as usual, inner claw tooth large, obtuse, re- 

 moved from tip; wings hyaline, stigma and costa yellowish ; lanceolate 

 cell with nearly straight cross-line. 



% . — Antennae 19jointed, shorter than in L. ahictis, the rays much 

 prolonged, tips of five apical rays enlarged, hair on rays long and coarse; 

 head nearly as wide as thorax; head and thorax black; abdomen dark 



