1956] 
Adams — Myrmeleontidae 
105 
straight back. ( 2 ) : the pale stripes thinner, may extend 
to tip of abdomen, or be absent. 
Setae on legs mostly black (some white on coxae) ; on 
thorax mostly white, stiff, short; on abdomen mostly white, 
short, male with many long black setae on apical segments. 
Hind spurs as long as 1 % tarsal segments. 
Wings: venation of fore and hind wings mostly dark, the 
longitudinal and some cross veins interrupted with pale; 
membrane narrowly brown-fuscous bordering dark veins; 
dark spots at inner side of stigma, along R at intersections 
of cross veins, along CuA, at rhegma, in apical field, and at 
end of CuA 2 . Hind wing similarly marked, but not so 
heavily. 
Fore wing: 3 presectoral cross veins (rarely 4 or 5), 
usually the outer one connected to first cross vein beyond 
origin of Rs-fMA; Rs-fMA 8-11 branched; 11-15 basal 
cubital cross veins, 3-10 (usually 5 or 6) connected; 9-12 
(usually 10 or 11) anal veinlets. Hind wing: 2 or 3 pre- 
sectorals; Rs-fMA 8-11 (usually 9 or 10) branched; 5-7 
inner cubital veinlets. 
Measurements (means, in mm.) : body length 5 35.8, 
2 26.7 ; abdomen $ 29.5, 2 20.2 ; fore wing 5 25.4, 2 26.9, 
width $ 6.3, 2 6.9 ; antennae $ 7.0, 2 5.7 ; third segment, 
labial palpus, 5 0.77, 2 0.85, width $ 0.17, 2 0.21; pro- 
notum, length at center, 5 1.12, 2 1.19, width S 1.81, 2 
1.81 ; pterothorax $ 4.0, 2 4.4 ; third abdominal tergite 
5 6.5, 2 6.2. 
California : Contra Costa Co.: Antioch, V-24-49, 2 5 
(one the holotype) , 1 2 (allotype), J. W. Mac Swain 
(CAS) ; V-24-49, 5 , P. D. Hurd (CIS), VI-4-42, 1 2,2 2 , 
E. C. Van Dyke (CAS) ; VI-20.-37, 2, E. S. Ross (CAS) ; 
V-27-50, 2, S. F. Bailey and R. M. Bohart (UCD) ; VI-8- 
39, 4 2, R. M. Bohart (CIS) ; VI-2-40, 2, B. Brockman 
(CIS); V-20-33, 2 , E. O. Essig (CIS). San Bernardino 
Co.: Cajon Pass, VI-16-46, 3 5,3 2 , E. G. Linsley (CIS). 
This species has a dark brown facies, similar to that of 
H. curriei Banks, from which it may be distinguished by 
the short 8th abdominal segment in the male, which is 
