Philippipalpus Corpuz-Raros 1978

Philippipalpus Corpuz-Raros, 1978 Type species. Philippipalpus agohoi Corpuz-Raros, 1978, by original designation. Diagnosis. All life stages: dorsal opisthosoma with 10 pairs of lanceolate to weakly palmate setae; c 2, d 2 and f 2 absent; setae e 2 in marginal position, aligned with c 3, d 3, e 3, and f 3; setae h 2 similar in size and form to other dorsal setae; palps 5 -segmented, palp setal formula 0, 0, 0, 2, 3 (1); immature stages with anterior margin of prodorsum smoothly rounded, without projections/notches; ventral plate absent; 3 pairs of pseudanal setae (ps 1���3) on weakly developed membranous anal plates. Adult female: gnathosoma usually completely concealed by prodorsum; anterior margin of prodorsum with deep medial notch, forming 1 pair of broad fleshy lobes each bearing setae v 2 (usually inserted beneath a fold); genital plate weakly developed, membranous; metapodal plates not developed; coxae I without 1 c; trochanters I���IV 0- 0-1 -0 (v ��� absent on tr I���IV; l ��� present on tr III); femora I���IV 3 - 3 - 2 - 1; genua 1 - 1 -0-0 (d present on ge I���II); tibiae 4 - 4 - 2 - 2 (seta d absent ti III���IV); tarsi I���IV without tc������. Solenidia of male similar in thickness and length to those of female. Remarks. Smiley et al. (1996) and Mesa et al. (2009) described the genus with setae d 2 present and e 2 absent; however we feel that d 2 is in fact absent and e 2 is present on the margin, as in most of the related tegopalpine genera (Beard et al. 2013). Species of Philippipalpus are morphologically similar to species in the genera Tegopalpus and Chaudhripalpus, as all three genera have dorsal setae c 2 absent and three pairs of ps setae present (ps 1���3). Philippipalpus can be separated from both these genera by the presence of dorsal setae e 2 (absent in both Tegopalpus and Chaudhripalpus). Species of Philippipalpus are separated here using subtle differences in ornamentation, striation and measurements, unlike the other genera of Tegopalpinae. We feel that because each new species of Philippipalpus presented here occupies a single host species, and no other species of flat mite in this subfamily inhabits more than one species of she-oak, it is evidence to support their separation at the species level. Nevertheless, we acknowledge further collecting from a greater geographical range is warranted to test the validity of these species. Philippipalpus is unusual in lacking both setae v ��� on all trochanters (l ��� present on tr III) and d on tibiae III���IV.
Published as part of Beard, Jennifer J., Seeman, Owen D. & Bauchan, Gary R., 2014, Tenuipalpidae (Acari: Trombidiformes) from Casuarinaceae (Fagales), pp. 1-157 in Zootaxa 3778 (1) on pages 111-112, DOI: 10.11646/zootaxa.3778.1.1, http://zenodo.org/record/251337
{"references":["Corpuz-Raros, L. A. (1978) New Philippine Tetranychoidea (Acarina). Kalikasan, Philippines Journal of Biology, 7 (3), 211 - 230.","Mesa, N. C., Ochoa, R., Welbourn, W. C., Evans, G. A. & Moraes, G. J. de (2009) A catalog of the Tenuipalpidae (Acari) of the world with a key to genera. Zootaxa, 2098, 1 - 185.","Beard, J. J., Ochoa, R., Bauchan, G. R., Trice, M. D., Redford, A. J., Walters, T. W. & Mitter, C. (2013) Flat Mites of the World. Edition 2. Identification Technology Program, CPHST, PPQ, APHIS, USDA Fort Collins, Colorado. Available from: www. idtools. org / id / mites / flatmites / index. php (accessed 1 June 2013)"]}