Looking at the distribution map shown on the github site, H. quadratus is a definite possibility and the absence of pale marks on the legs is consistent with that. Unfortunately there is only a hint of the humped shape of the abdomen and I am always reluctant to put too much emphasis on face markings which can vary a bit. However, there is nothing at all that is inconsistent with the identification and I am happy for it to be labelled as H. quadratus.