THE CANADIAN ENTOMOLOGIST. 63 



sector ; and beyond is a crescent of five spots, most of them contiguous, 

 on the upper part of the second gradate series, the posterior four of these 

 are geminate with a minute white point • a larger triangular dark spot 

 near ends of cubitus and anal veins. Hind wings with the costal 

 neuration toward middle and towards apex distinctly brown ; between it 

 i^ very pale. The fore wings are very broad, but acute at tips ; the costal 

 area very broad at base. There are four radial sectors, but the first arises 

 nearer base than usual, and at first diverges but little, but curves before 

 origin of second sector ; none of the sectors are connected back to the 

 radius. The median is not bent toward cubitus at connecting veinlet. 



Expanse, i6 mm. 



One specimen from Plummer's Island, .Maryland, Sept. 



DESCRIPTIONS OF FOUR NEW HORN-TAILS. 



BY WILLIAM H. ASHMEAD, M.A., D.SC. 



Genus Sirtx, Linne. 



Sirex taxodii, new species. — 9. Length, 11.5 to 13 mm.; ovi- 

 positor very nearly the length of the abdomen. Black ; a spot back of 

 eyes and the process of the last dorsal segment reddish-yellow ; antenna! 

 joints from 1 1 to apex, an annulus at base of middle and hind tarsi, and 

 at base of hind tibiae, yellowish-white. Wings brown-black, with a faint 

 purplish tinge in certain lights. 



$. — Length, 12 mm. Agrees well with the female, except that the 

 metanotum and the abdomen are reddish-yellow, the apex dusky or 

 blackish, the angles of the pronotum faintly reddish, the apices of the 

 front and middle femora and their tibiae and tarsi are yellowish ; the hind 

 tibiae have an annulus at base, the hind tarsi have an annulus at base, 

 while the extreme tip of the basal joint and joints 2 to 5 are yellow. The 

 antennae are 20-jointed, the joints 12 to 20 being yellow, the rest black. 



Types.— Cat. No. 7681, U. S. N. M. 



Tryon, N. C. Described from 2 9 's and i ^ , labelled No. 161 1; bred 

 by Mr. W. F Fiske from the Cypress {Taxodium distichum, L.). 



Sirex Fiskei, new species. — 9. Length, 27 mm.; ovipositor about 

 two-thirds the length of the abdomen. Head and thorax black, the 

 thorax above brownish ; abdomen reddish-yellow, the basal two-thirds of 

 first dorsal segment, dorsal segments 3 and 4 and the fifth segment 

 laterally black. The antennae are apparently 22-jointed, black, with 

 joints 13 to 22 yellowish or yellowish-white ; legs black, an annulus at the 

 base of the middle tarsi, the basal third or more of the hind tibiae, and the 

 base of the hind tarsi, white or yellowish-white. Wings purplish-black. 



Type.— Cat. No. 7682, U. S. N. M 



Tryon, N. C. Described from one female taken by Mr, W. F. Fiske 

 on Pine, 



