Key to the species of Saicinae in America North of Mexico

1. Pronotum armed with spines near humeral angles, scutellum with spine erect............................................................ 2

- Pronotum unarmed at humeral angles, scutellum with spine strongly erect or reclined .............................................. 4

2. Process of male hypopygium with a single erect spine, posterior margin of abdominal sternum VII in females sloping ventrocephalad, antennal segment II subequal to one-third length of antennal segment I ...................................... .......................................................................................................................................... Pseudosaica florida (Barber)

- Process of male hypopygium bifurcate, posterior margin of abdominal sternum VII in females vertical to subvertical, antennal segment II subequal to one-half length of antennal segment I....................................................................... 3

3. Forewing with two closed cells, general coloration yellowish brown, females may be micropterous .......................... .......................................................................................................................................................... Saica elkinsi Blinn

- Forewing with 3 closed cells, general coloration red, brachyptery unknown in females ............................................... ....................................................................................................................................... Saica apicalis Osborn & Drake

4. Protibiae with one, protibiae with two series of stout spines or setiferous tubercles, scutellum with spine erect ......... ................................................................................................................ Tagalis inornata cubensis McAtee & Malloch

- Fore tibiae and femora without stout spines or setiferous tubercles, scutellum with spine reclined ........................... 5

5. Dorsum with a broad fuscous stripe extending along midline, antennae and legs densely pilose ................................. ................................................................................................................................. Oncerotrachelus acuminatus (Say)

- Dorsum uniformely pale yellow, antennae and legs without dense pilosity ............... Oncerotrachelus pallidus Barber