collected in 1965 (date not specified)
This specimen if from the Texas Memorial Museum Invertebrate Collection # 64305. Collected by C. J. & B.V. Durden at Powdermill Nature Preserve. I had to perform a dissection and make a permanent slide of the genitalia in order to identify to species. I keyed it out with Mockford (1). The genitalia strongly resemble Fig. 35 in Kathryn M. Sommerman's "Revision of the genus Lachesilla north of Mexico", Ann. Entomol. Soc. Am. 39(4):627-661, 1946.

From Mockford (1993) " macropterous males and brachypterous females; wings of females not extending beyond first abdominal tergum" This species is relatively uncommon. Found primarily I leaf litter but males sometimes taken in hanging dead leaves.
I have requested confirmation from Mockfford and Alfonso Aldrete-Garcia but I'm confident about this one.

Maybe someday we can get a live shot!