A new genus and species of North American bat chiggers (Acarina, Leeuwenhoekiidae)
Vercammen-Grandjean, P.H. and Watkins, S.G.  Revision of Brennanella Radford, 1954 (Acarina: Leeuwenhoekiidae)
Vercammen-Grandjean, P.H.; Watkins, S.G. and Deblauwe, C.  Revision of the subgenus Oenoschoengastia Womersley and Kohls,1947 (Acarina: Trombiculidae)
Vercammen-Grandjean, P.H. and Watkins, S.G.  Revision of Whartonia glenni Brennan, 1962, on American bat parasite (Acarina: Leeuwenhoekiidae)
Vercammen-Grandjean, P.H.; Watkins, S.G. and Beck, A.J.  The nymph of Austracarus dendrohyracis Vercammen-Grandjean, 1957 (Acarina: Leeuwenhoekiidae)
Vercammen-Grandjean, P.H. and Watkins, S.G.