THE CANADIAN ENTOMOLOGIST. 73 



face rougher ; thorax closely granulated, opaque, the middle lobe pos- 

 teriorly, pleura and metathorax, finely rugulose, the latter indistinctly 

 areolated. Wings fuliginous, with a white band across the middle from 

 the base of the stigma, the apex of the wing showing scarcely any white. 

 All the femora are very much swollen, while the abdomen, except the 

 petiole, is smooth, polished ; petiole longitudinally striate, somewhat 

 rugose basally. 



Hab. — Morgantown, W. Va. 



Bred April 29, 1892, from Scolytus 4-spinosus living under the bark 

 of Carya alba. 



(7) S. simillimus, sp. n. 



c? , ? • — Length, 2 to 4.5 mm. Black ; collar, mesopectus and petiole 

 pale ferruginous or brownish-yellow. Head above transversely aciculated; 

 thorax opaque, closely granulated ; the middle mesothoracic lobe pos- 

 teriorly and the metathorax finely rugose, the latter faintly areolated ; 

 petiole striate. Wings fuscous, white at base and tips, and with a trans- 

 verse white band from the base of stigma. Antennas in 9 32. to 35- 

 jointed, in g 25-jointed, fuscous, pale toward base. Legs fuscous ; the 

 coxae and trochanters, annulus at base of tibiae and the tarsi, white. 

 Abdomen, except petiole and base of second segment, black, the basal half 

 of the second segment shagreened ; ovipositor as long or very little 

 shorter than the body. 



Hab. — Morgantown, W. Va. 



Bred May 18 and 25, 1892, from Agrilus bilineatus living in White 

 Oak stump. 



(8) S. brachyurus, sp. n. Spathius brevicaudus, Ashm., MS. (Olim. 



preoc), Ins. Life, IV., p. 258. 



$ . — Length, 3 mm.; ovipositor half the length of abdomen. Much 

 like S. simillimus, but with the lower part of head, the prothorax, meta- 

 thorax and petiole brownish, the ovipositor very much shorter, in 

 simillimus being about as long as the whole insect, while in brachyurus 

 it is only half the length of the abdomen. The head is transversely 

 rugulose ; the legs and antennae brown, the tibiae not annulated with 

 white, the femora not especially thickened ; while the second abdominal 

 segment is perfectly smooth and polished. 



Hab. — Morgantown, W. Va. 



Bred Nov. 10, 1890, and March 15, 1891, from Dryococtes auto- 

 graphus living under bark of dead Abies excelsa. 



