162 Annals Entomological Society of America [Vol. VI, 



Mr. Herman Borries, of Copenhagen, from seeds from the 

 Western United States: 3 9 reared from Abies magnifica 

 and concolor; 1 9 , 1 cf from A. grandis; 2 9 , 1 cf from A. 

 amabilis. I have also examined the following specimens from 

 the U. S. Bureau of Entomology through the kindness of Mr. S. 

 A. Rohwer. 15 9 and 12 cf reared from the seeds of Abies 

 magnifica from Tahoe, Calif. National Forest. 2 9 and 6 cf 

 reared from the seeds of Abies concolor from Sierra, Calif. 

 National Forest, 30 May, 1912, collected by J. M. Miller. The 

 specimens from A. coticolor are somewhat smaller and generally 

 darker in coloration. 



The female reared from A. grandis by Borries may represent 

 a distinct species but it is impossible to decide from such scanty 

 material. The yellow area on the prothorax is very large, 

 covering nearly the whole dorsal aspect and on the vertex 

 there is on each side a branch of the circumorbital yellow band 

 which curves around behind the lateral ocellus. The male is 

 not in good condition for study. 



Megastigmus tsugae n. sp. 



Female.- — Length, 2.5 mm.; abdomen, 1.1 mm.; ovipositor, 1.8 mm. 



Face and cheeks yellow; occiput, vertex and front black; the upper 

 posterior orbits and a spot at the upper angle of the eye yellowish 

 brown. Antennal grooves black. Prothorax black with two angular, 

 widely separated dorsal spots and the anterior half of the lateral part 

 yellow. Rest of the thorax shining black. Mesonotum and scutellum 

 finely shingled. 



Fig. 5. Megastigmus tsugce. 



Scape and pedicel yellow beneath. Anterior coxee yellow, middle 

 coxae brownish yellow, posterior coxae black; rest of legs yellowish; 

 base of femora and band at middle of tibise on middle and posterior legs 

 brownish. Wings hyaline; stigmal club not surrounded by a clouded 

 area. Abdomen black with five more or less distinct yellow bands at 

 the sides; tip yellowish. Ovipositor black. 



Described from 2 females reared by Mr. Herman Borries 

 from seeds of Tsiiga Mertensiana hookeriana from the Western 

 United States. Type in the U. S. National Museum. 



