1956] 
Adams — Myrmeleontidae 
97 
with paired pale spots at base (except on 3rd), middle, and 
apex ; sternites dark. 
Wings: Fore wing: costa pale, other longitudal veins al- 
ternately dark and pale; cross veins irregularly dark and 
pale; many of the dark sections surrounded by dark-suffused 
areas in the membrane, especially around MP 3 + 4 (M 2 of 
Markl, et al.) , a spot between MPi + 2 and MPs+ 4 +CuA! be- 
tween MP 3+4 and rhegma, a line of cross veins up from 
rhegma toward the wing apex, and a line up from the end 
of CuA 2 . In some specimens the wing is heavily spotted, 
in others only slightly so. Hind wing: unmarked except 
for dark spot on basal side of stigma ; veins mostly dark, the 
longitudinals interrupted with pale. 
Fore wing: 3 presectorals (rarely 4), 10-13 branches of 
Rs+MA, 11-14 basal cubital cross veins, usually 3-4 connect- 
ed, 9 or 10 branches of CuP+Ai, 1-5 (usually 2-3) con- 
nected. Hind wing: 2 presectorals; 9-14 (usually 11) 
branches of Rs-fMA; 6 or 7 inner cubital veinlets. 
Measurements (mm., means in parentheses) : body length 
$ 29.5-35.0 (33.0), $ 21.0-27.0 (24.2) ; abdomen $ 26.5- 
29.0 (27.0), 2 15.5-21.0 (18.4) ; fore wing, length $ 19.5- 
22.0 (20.8), 2 21.5-24,0 (23.5), width $ 4.6-5.6 (5.4), 2 
5. 8-6. 5 (6.2) ; antennae 5 5.4-6.9 (6.2), 2 4.7-6.7 (5.7); 
terminal segment, labial palpi, length $ 0.62-0.69 (0.67), 
2 0.67-0.92 (0.71), width $ 0.14-0.20 (0.17), 2 0.19-0.25 
(0.19) ; third abdominal tergite $ 5. 2-6.7 (5.9), 2 4.1-5.0 
(4.4). 
Sonora: Nogales, $ (MCZ). 
Arizona: Cochise Co.: near Douglas, VIII-19-40, 4 $ 1 9 , 
E. C. Van Dyke (CAS) ; San Pedro River, Fairbank, Sept. 
6, 1927, 2 , J. A. Kusche (CAS) ; Huachuca Canyon, Sept. 3, 
1950, $, R. Langston (LAM); Santa Cruz Co.: Madera 
Canyon, Aug. 16-20, 1949, 3 $ 2 2 , P. Adams, col. ; Box 
Canyon, Santa Rita Mts., Ariz., Aug. 21, 1949, $ ( holo - 
type), Aug. 25, 1949, 2 ( allotype , both in the Museum of 
Comparative Zoology) , Aug. 25, 1 2,2 $ , Aug. 21,2 $ , 
P. Adams, col. ; Pima Co. : Tucson, 16 mi. S., Aug. 11, 1924, 
S , E. P. Van Duzee (CAS) ; Tucson, 15 mi. E., 2600 ft., 
VIII-18-50, $ , Cazier et al. (AMNH) ; Tuscon, VIII-27-38, 
2, D. J. + J. N. Knull (MCZ), X-15-22, 1935, 4 ^,2 2, 
