I really think this is Panorpa braueri, 2 marginal spots and first basal spot noticeable in image. What makes me question the ID (other than I didn't look at genitalia) is that the apical band lacks clear spots mostly. Also, it's been on BugGuide for a while with no response.
Orange-banded Black Scorpionfly (Panorpa nuptialis)
Note: The ID for this Orange-banded Black Scorpionfly (Panorpa nuptialis) was made possible by Jeff Brown at BugGuide who's a contributing editor, as well as an anonymous contributor who goes by the name of Hemipteran Seeker. Many thanks to both. BugGuide is hosted by the Department of Entomology at Iowa State University and the ID for this observation may be accessed here: http://bugguide.net/node/view/1183703
8 November 2014: Observed an Orange-banded Black Scorpionfly (Panorpas nuptialis) at the Lewisville Lake Environmental Learning Area (LLELA) in Lewisville, Texas. This particular species of scorpionfly is native to the United States and flies in several southcentral states from September to November including Texas, Louisiana, Oklahoma, Arkansas, Mississippi, and Missouri. In addition, this scorpionfly species flies in Mexico. Because it has a North American presence, the Orange-banded Black Scorpionfly is an authentic resident of the Western Hemisphere. LLELA is administered in joint partnership by the US Army Corps of Engineers, the City of Lewisville, Texas, the Lewisville Independent School District, and the University of North Texas.
Mecoptera (from the Greek: meco- = "long", -ptera = "wings") are an order of insects with about 550 species in nine families worldwide. Mecoptera are sometimes called scorpionflies after their largest family, Panorpidae, in which the males have enlarged genitals that look similar to the stinger of a scorpion. The Bittacidae, or hangingflies, are a prominent family of elongate insects known for their elaborate mating rituals, in which females choose mates based on the quality of...