1912] Eastern Species of Cerceris 15 
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Metanotum with yellow stripes; hind femora all reddish yellow, spot on 
clypeus each side at base of mandibles; clypeal process sub-conic; enclosure 
SaMOVonM= sim, ioavGicllS. jowmMGHAe) Oa SwSlSi- sede bes cack USO e a oOo r Ee zelica 
INobmetanotalistripes amd tenionay blackish facets sgs5-44-0+-2<. 00. ne 19 
Narrow bands on all segments; clypeal process small; enclosure smooth in 
Thi TaMTHOKGMWESS (5 oc tods cain A ko clone TOW OB 2 D Ue SEER OS DRT Dire eee compar 
All segments not banded, clypeal process plainly truncate in front......... 20 
Very coarsely punctate; no yellow on interantennal ridge, band on fourth 
abdominal segment, small species, a small tooth or ridge on mesosternum 
SACI IGEN Myo Ae doa cadiato tp 3o0 So Cae Eien ann Ser aa Kennicotti 
Enclosure strongly transversely, irregularly rugose; basal segment of 
ADCoOMmMene note spOUkeGenm waawy teense eon A) a2 mnie nasa tile aries: snes 4 22 
Bnelosure smoothin' part) on longitudinally striate). .0.5.-....2.+0.-+..<-- 23 
Clypeal process twice as broad as long, yellow beneath, stigma brownish. 
halone 
Clypeal process nearly as long as broad, black beneath; stigma yellowish. 
clymene 
Basal abdominal segment not spotted clypeal process nearly square; stigma 
VeloOwisn sen GlOostne: COArSelyaStrlabens ee rietat foe. 2 ase « a5 ol chryssipe 
IBD AISI “GE SATONSTTE. SOLOS ETS Mma nee Stone ic apc Ss So coos ein ef aie Cres cht ea ee 24 
Spot at base of mandibles, ususally also on metanotum................... 25 
No spot at base of mandibles, clypeal process not or but little narrowed in 
ROME eo e'c bs S'dhe-o ao Lockey Gee ORO ML IOP aa Toc on cach a ae eee een en 27 
Marks white; enclosure striate all over; clypeal process emarginate in front. 
nigrescens 
Marks yellow; enclosure mostly smooth or clypeal process narrowed in front 
PATE GUGTI ODM Ca Aas ATT Aamo ape us) Sf tc) an ee Rapa ueee PRP RL teme) eve eta) <flroerecerd a. lNlee, Bee’ 26 
Clypeal process narrowed in front and almost rounded below; enclosure 
finely striate, except at tip, hind femora yellowish.............. psamathe 
Clypeal process broad, emarginate in front, enclosure almost wholly smooth, 
lauaycle ievaavoura sloleKel ke, flies ch ols teas prac cic deals See CeO ee ieee aa fasciola 
Angles of clypeal process very sharply produced; enclosure strongly striate; 
Spots on first abdominal segment connate, 4..5-.......:.+-..+.-. dentifrons 
Clypeal process only, slightly emarginate imfiront............-..........:-. 29 
Enclosure large, mostly smooth; no metanotal marks; stigma yellowish; 
ClypcalapnrocessemOb emlancinaten. .o..a ssh. ae ceeeis sos owe aes deserta 
Enclosure finely striate; stigma brownish; clypeal process emarginate in 
[LONE mSCApesOneambemtice [laCk.. jl 2 Wei ae Sat eee Go nae oe arelate 
Wings wholly black; face with three transverse pale spots, post-scutellum 
yellow, scutellum unmarked, band only on second abdominal segment, 
Enelastmen broad mama sMOOtn... .. 0. salads euros 2. sas Bess fumipennis 
Win opr omy ©llnvailonlel corms ett Mee bes e.2 cber ARMIN Shige ches idtievere a esac 64 30 
NecondmsecmentmonmabG omenmunnmmlankeGs.. s25 se 4440-45-52 6- se. - insolita 
Hecondseseamentworapdomennbangdeduans..nui aan o.68 2 soc eeee wee slan 31 
Enclosure transversely rugose; stigma dark brown; spots on scutellum and 
band on post-scutellum yellow; small, coarsely punctate species........ 32 
Enclosure smooth in part or longitudinally striate; stigma yellowish; first 
segment of incleeomeaineambande hans. ite) ls... :. 2. . 34 
First segment of abdomen red; band or second segment usually not emar- 
GIMENLS, Tn IRON. Wese'e c. Pho Boe Slee Obes De oes LUO crete Ole ate ea aera 33 
First segment of abdomen black, usually with yellow mark; band on second 
segment usually emarginate Til HACIA «23,2 os Geena ale finitima 
IMIS MOREA TOIL ee EYE Ses Re ce chat oy ke aa rufinoda 
Metanotum reddish (except enclosure)..................--- rufinoda crucis 
Scutellum, but not post-scutellum yellow; clypeus all yellow; band on basal 
segment of abdomen; hind femora blackish; enclosure punctate on sides. 
catawba 
Post-scutellum, but not scutellum, yellow; yellow spot on clypeus; basal seg- 
ment of abdomen spotted; hind femora yellowish, enclosure mostly smooth 
fulvipediculata 
