I completed a trade with uncommonroachboy in July of 2016. I sent several G. oblongonota and homemade roach chow in exchange for 2 breeding pairs of E. javanica and about 10 P. vanwaerecki nymphs. The exchange went well. He had great communication, prompt shipping and everyone arrived alive and healthy.
However, now that my P. vanwaerebecki are nearly adult, I can verify that they, too, are hybrids. A few have some very nice P. van coloration, but all of them lack the characteristic notched pronotum. I've been in contact with uncommonroachboy, and he offered to send a breeding pair of pure P. vans in the spring as a replacement. He actually asked about the P. vans before I had a chance to bring them up, and he was very apologetic.
To his credit, the E. javanica are absolutely gorgeous - definitely the best Halloweens I've seen so far. They've had several births now, and the offspring are just as vivid and healthy as the adults.