Apr. 11, 2019 8:26 a.m. P1790741
We have both these Labidus coecus Legionary Ant species and Neivamyrmex. This one is found in Ar, La, Ok, and Tx. Their main diet is the brood of other ants. They are mainly nocturnal and live in caves, sometimes several meters down. Formicid.
Aug. 4, 2012 7:37 a.m. P1150048
Maybe another carpenter ant, Camponotus sansabeanus,, at 2601 at the entry lights. Shadows conceal outline. Thorax red, not like April ant IDd by Bug Guide as C. americanus but rev. in 2019. Sayi is two reds and one black, but the red should be paler and black would be abdomen, not head.. Formicid.
April 30, 2012 10:18 a.m. P1100727
This is a Carpenter Ant, identified by BG as Camponotus americanus at the time but in 2019 revised to C. sansabeanus. BG page is at https:/bugguide.net/node/view/635845#2781210.