704 N. C. AGR. EXP. STA. BUL. 239 
KEY TO MALES OF SIBOVIA 
(S. optabilis (Melichar) and S. inexpectata (Metcalf and Bruner) not included) 
1. Aedeagus broad in caudoventral view (fig. 556g, s) and paraphyses capi- 
TATE ADICANY 5 hs pee gee, cael ae compta (Fowler) (fig. 566) 
Aedeagus narrower in caudoventral view, or if broad, then paraphyses 
not capitate apically . oes cas ons ae oes ng 2 
2. Aedeagus in lateral view with apex very broadly expanded ............. 3 
Aedeagus in lateral view with apical portion less (figs. 570f and 581f) 
or not at all expanded apically in lateral view .....................-. 5 
3. Aedeagus in ventral view with shaft broadest at midlength ............. 4 
Aedeagus in ventral view with shaft broadest at apex 
composita (Fowler) (fig. 567) 
4. Coronal pattern consisting of a pair of converging dark vittae on each side 
(igeo68a) sr cccs-ex career sororia (Fowler) (fig. 568) 
Coronal pattern without vittae .................. recta (Fowler) (fig. 569) 
5. Crown broadly orange-bordered anteriorly .... pileata (Fowler) (fig. 570) 
Crown not orange-bordered anteriorly ./............)2, ce 6 
6. Crown with a pair of parallel dark stripes ...............0.ceeeeseeeces 7 
Crown with stripes convergent or converging, or without stripes ....... 11 
7. Forewing with a pale oblique transverse line ending in claval apex 
aprica (Melichar) (fig. 571) 
Forewing without such a line»... « «s.<1 sa, 0+ dat> - een 8 
8. Pygofer with a short, acute, mesal apical or anteapical extension in ven- 
tral VIEW 2.0.00... cstv ete cede cncessweres ven +e) enn 9 
Pygofer without such an extension ...... taematifrons (Schmidt) (fig. 572) 
9. Crown with dark stripes each broader than median pale area ......... 10 
Crown with dark stripes each narrower than median pale area 
improvisula, n. sp., page 707 
10. Face with two black lines converging below, forewings with a transverse 
anteapicalDale' band: 2.00 a ee picchitula, n. sp., page 707 
Face with indistinct brown bands, forewings without an anteapical 
pale Band pics cajgieiNl AO tenetie. Jc ake carahua, n. sp., page 709 
11. Forewing with vein forming outer margin of brachial cell not alternating 
pale‘and ‘darker (oper een 12 
Forewing with vein forming outer margin of brachial cell alternating 
pale.and darker of, 2 cue cee ee ee praevia (Melichar) (fig. 576) 
12. Median line of pronotum and scutellum not narrowly black or 
brown. ....ve-8) Ay ea 1. MT oo 13 
Median line of pronotum and_ scutellum usually narrowly _ black, 
rarely brown’ 2.200. el a eee ee 18 
