Sphecoidea of Nebraska 107 
1908. Tachysphex puncticeps H. S. Smith, Univ. Nese. Stupigs, 
WOT “pic3ete 
Females 1: Sioux county; May. 
Tachysphex propinquus Viereck. 
1904. Tachysphex propinquus Viereck, Ent. News, XV, p. 87. 
1913. Tachysphex propinquus Williams, Kans. Univ. Sc. Bull., VIII, 
p. 162. 
Males 1, females 5: Louisville (2), Ogallala (1) and Harrison 
(1) ; June 24 to August 15; visits flowers of Solidago glaberrima. 
ASTATINAE 
KEY TO THE GENERA 
Marginal cell along the costal margin much longer than the stigma; eyes 
TENE TLE MNO OMtiGer pec eis pease aces, «!sheicreuternoe 0 vis e-clajateieisrennie Astatus 
Marginal cell along the costal margin not longer than the stigma, most 
frequently shorter; eyes in the male normal, not holoptic; tarsal comb 
Rife RAGLANCE. TAA SPUMOUS fle vielen cbse vcr nencacm eye Diploplectron 
Astatus Latreille 
KEY TO THE SPECIES 
MITISE CUS MLN OUP We Cin (LAT IILOS! eaytiacls,«.0)ayslela o.eisela.c) as, boas esate eicve'e aortas 2 
Insect with at least the base of the abdomen red ................2- 3 
Pm UDESCENCeN Ome LO bax +WiMITSI tyr. Gal. als « alelo.dlz idle velerelee eae are unicolor 
PeIIESCENGE TOL, LOA Xe DLACK veya. wcferslescise em eiaersre) ote. susteie aieres efote nubeculus 
3. Marginal cell distinctly shorter than the first submarginal; propodeum 
MEIVE LY eee GARNI TRAC tae pe cee crass cecchs ove acs erslle als avara cvelera\ ene tretetels: viaehotatets asper 
Marginal cell generally as long or longer than the first submarginal; 
Propodeum, cather coarsely reticulate. 7.22 hci. > neem were ct ee eens 4 
4. Propodeum coarsely reticulated, with a central longitudinal ridge, 
: bicolor 
Propodeum more finely reticulate, without a longitudinal ridge down 
RET eeae CETUC Ia ees etaig A ipiees ahctara) ROUONy cinta Aa ayeoetele on: gonteim eee emmys nevadicus 
Astatus unicolor Say. 
1824. Astata unicolor Say, Long’s Exped., 11, App., p. 337. 
1893. Astatus unicolor Fox, Proc. Acad. Nat. Sc. Phil., p. 541. 
Males 36, females 10: Omaha (25), Meadow (1), Weeping 
Water (3), Lincoln (9), Haigler (2), Imperial (1), Mitchell 
(2), Glen (1) and Monroe Canyon (2); June 24 to September 
425 
