1972] 
Cooper — Borens 
275 
from hilus of spermatheca, entering common oviduct at its caudal 
third; a pair of elongated, tubular accessory glands join oviduct by 
a very short common duct immediately posterior to entrance of 
spermathecal duct. Mature egg (fig. 9) buffy-white, from 0.53 X 
31 mm to 0.60 X 30 mm, slightly narrowed at one end; chorion 
smooth. 
Measurements (in millimeters; in each case ordered thus: mean 
of measurements, [range of measurements], number of examples 
measured.): Males, body length (in 70% isopropyl alcohol) — 2.7 
[2.6-2.9] 5; body length (dry) — 1.9 [1.5-2. 5] 9; antennal length 
— 1.66 [1.4-1.9] 13; rostral length (eye to tip) — 0.7 [0.6-0.8] 
13 ; forewing length — 1.0 [0.9- 1.1] 13. 
Females, body length (in alcohol) — 3.9 [34-4.2] 6; body length 
(dry) — 3.0 [2. 7-3. 6] 5; antennal length — 1.7 [1.5-1.9] 10; ros- 
tral length — 0.9 [0.8-1.0] 10; forewing length — 0.3 [0.27-0.34] 
10; ovipositor length (base of tergum 10 to tip) — 0.6 [0.56-0.64] 
10. 
Holotype. Male: 2.5 cm long (dry mount), collected 8 January 
1972; Allotype, Female: 3.6 mm long (dry), collected 27 Decem- 
ber 1970; 15 male and 12 female paratypes, collected 31 December 
1971 to 22 January 1972. All specimens from Coldwater Canyon, 
ca 4400 ft altitude, below the town of Mountain Center (at 33 0 
42' N/ 1 1 6° 44' W), Mt. San Jacinto, Riverside Co., California; 
collected by Geoffrey, Tera, Ruth and K. W. Cooper. 
Types and 2 paratypes are deposited in the Museum of Compara- 
tive Zoology at Harvard University where types of the majority of 
North American species are located. A pair of paratypes has been 
placed in each of the following collections: U. S. National Mu- 
seum, California Academy of Sciences, Snow Entomological Museum 
(University of Kansas), and the University of California at River- 
side. Dissections and remaining specimens are in my collection. 
Figs. 8-11. Boreus, reproductive system. All figures in dorsal aspect; 
camera lucida representations. — Fig. 8. Male, B. notoperates n. sp., 4 
lobes per testis ; right testis lies anterior to left, tilt conceals 2 of the 4 
lobes; to right, mature spermatozoan. — Fig. 9. Female, B. notoperates , 6 
ovarioles per ovary; to left , spermathecal vesicles and connections to as- 
sembly-duct; to right, mature (laid) egg — the chorion is smooth. — Fig. 
10. Male, B. nivoriundus Fitch, 1 lobe per testis, right testis anterior to 
left; above, testes from right side — note that a short efferent duct from 
each testis enters a common (fused) calyx; testes are mottled with an 
orange-brown pigmentation. — * Fig. 11. Female, B. nivoriundus, 7 to 10 
ovarioles per ovary; there are 8 ovarioles in the figured right ovary; to 
right, mature (laid) egg — the chorion is microscopically vermiculate. 
