May, 1953 
10. 
11. 
12: 
Se 
14. 
ES. 
16. 
Mee et he ha ce ect hie te 5. harti 
Hind wing relatively broad and with one 
or two long, marginal intercalary veins 
posterior to second longitudinal vein, 
SSS aR DTM a ea cree dee es pee tiene 7 
Abdominal tergites 2-6 entirely white... 
«SRG Srey eee oa 6. pygmaeus 
Abdominal tergites 2-6 almost entirely 
dark brown, or faintly stained with 
brown, and with a red crossband at 
posterior margin of each tergite... 8 
Abdominal tergites 2-6 uniformly dark 
brown except for anterolateral angles 
of each tergite 7. frondalis 
Abdominal tergite 2 mostly covered by 
brown staining, tergites 3-6 faintly 
stained with brown at posterolateral 
angles and with a medianly interrupted, 
red crossband at posterior margin of 
each tergite 8. baeticatus 
Second longitudinal vein of hind wing 
forked, fig. 275 .9. herodes 
Second longitudinal vein of hind wing not 
forked, figs. 273, 277—284.......... 10 
Hind wing with an unusually long costal 
ROOK HES LO Ge Pehetlns SA: 10. cleptis 
Hind wing with a relatively short costal 
projection, figs. 277-284........... 11 
Male genitalia of the vagans type; that is, 
with the second forceps segment cylin- 
neal ge) eek | ey Ses ee | 
Male genitalia of the intercalaris type; 
that is, with the second forceps segment 
EEUSEAEC MOE DOr eee I 13 
Fore wing 6.5—7.5 mm. long; abdominal 
sternites 2-6 smoky gray, with a tan 
UTS 3) Nek eae, Ae eee 11. vagans 
Fore wing 4.5—5.0 mm. long; sternites 2—6 
white or faintly vellow.12. incertans 
Head and thorax bright yellow-tan; ab- 
dominal segments 2-6 lightly stained 
with tan or yellow, apical abdominal 
tergites light orange-brown or tan... 14 
Head and thorax chestnut brown, dark 
brown, or black, with apical abdominal 
tergites same color or lighter red-brown; 
abdominal segments 2-6 white, pale 
yellow, or partly or completely brown 
Marginal intercalaries in second inter- 
space of fore wing shorter than those 
in first or third interspace, fig. 287; 
abdominal tergites 2-6 yellow........ 
Siig ase Aer ee ; 13. pallidulus 
Marginal intercalaries in first three in- 
terspaces of fore wing equal in length, 
fig. 286; abdominal tergites 2-6 white 
mesoapicale papilla: fig: 2955... .. 16 
First genital forceps segment with a meso- 
apical papilla, pes: 296, 2975.) 5.17 
Thorax very dark brown to black; ab- 
dominal tergites 2-6 dark red-brown, 
with narrow, yellow or tan areas at 
anterior and lateral margins of each... 
= lS Ry els AT Ah le ee 15. pluto 
Thorax dark chestnut brown; abdominal 
tergites 2-6 light yellow, with trans- 
Burks: THE Mayr ties oF ILLINoIs 
i) 
in) 
in) 
125 
verse, narrow, red-brown line at pos- 
terior margin of each...16. levitans 
Abdominal tergites 2-6 partly or entirely 
brown or red-brown.............. 18 
Abdominal tergites 2-6 entirely white or 
pale yellows: Pec cates ere 23 
Compound eyes small, fig. 256......... 
Seis Arc cscts ene ee ake 17. flavistriga 
Compound eyes larger, fig. 255......, 19 
Abdominal tergites 2-6 white, with a red- 
brown band at posterior margin of each 
WANS, EARS Stamens te 18. cingulatus 
Abdominal tergites 2-6 mostly or entirely 
darksbrowith te. tea oR eee 20 
Hind wing without marginal intercalary 
VEINS CIS. ON iid Oiler eee ye eR Ns 21 
Hind wing with marginal intercalary 
Velie Se LOD ree See na ae 22 
Fore wing 5 mm. long, with numerous 
anastomosed crossveins in stigmatic 
area; abdominal sternites 2—6 white... 
Meee Meroe maa A eiiciee 19. anachris 
Fore wing 4 mm. long, stigmatic area 
with only two to six nonanastomosed 
crossveins; abdominal sternites 2-6 a 
faint smoky gray.......20. rusticans 
Longitudinal veins of fore wing brown. . 
Se a ee eae tne emote | BPE MEG 21. phyllis 
Longitudinal veins of fore wing hyaline 
or only veins Sc and R, stained a faint 
Vellowsera eres 22. brunneicolor 
Fore wing with marginal intercalaries of 
subcostal interspace two or three times 
as long as those in first and second R, 
interspaces, fig. 285...23. intercalaris 
Fore wing either with marginal inter- 
calaries absent in subcostal interspace, 
or, if present, almost as long as those 
in first and second R, interspaces, fig. 
DB Br. eC ee sane ois eevee eee eM patent BL 24 
Compound eyes small, as in fig. 256; fore- 
WINE SI LOMO aie ene 24. nanus 
Compound eyes large, as in fig. 255; fore- 
Wille) o) name Vone pele. 25. phoebus 
Mature Mace Nympus 
Caudal filaments either entirely dark or 
entirely light, or basal half to two- 
thirds of each filament uniformly dark 
and with apical half or third of fila- 
ment light, but never with a dark brown 
crossband at middle and at apex in 
addition’ to this shading 0...) .0...) 2 
Caudal filaments relatively light in color, 
with dark brown crossband at or near 
the middle and at apex of each...... 5 
Abdominal tergites 2-10 each uniformly 
brown on disc, with lateral margins 
WihiteLOG ah te tana eee ees oe Bee 3 
Abdominal tergites 5, 9, and 10 mostly or 
completely white, others brown, with 
lateral margins largely white........ 
Each cercus having its basal two-thirds 
shaded with brown; median caudal 
filament five-sixths as long as cercus.. 
eee ee 2 ADL Te1COLOL 
Each cercus uniformly shaded with brown 
from base to apex; median caudal fila- 
ment two-thirds to three-fourths as long 
ASMCORCUSH ine, al eee ene * 21. phyllis 
uN 
