. Bulletin of the British Museum (Natural History). 36 BRITISH MITES —SUBFAMILY M AC ROCH E L I N A E TRAGARDH examined specimens from the nest of Riparia riparia at Tirley, Gloucestershire (Coll. R S. George) and from poultry manure at Houghton, Huntingdonshire (Coll. C. Horton Smith). Hughes (1948) records it under the name M. carinatus from floor debris and sievings of Fig. 48. Macrocheles matrius Hull, female. Tectum. M. matrius is undoubtedly conspecific with Macrocheles subbadius var. robustulus (Berl.) Sellnick (1940). If the species described and figured by Sellnick is the same
. Bulletin of the British Museum (Natural History). 36 BRITISH MITES —SUBFAMILY M AC ROCH E L I N A E TRAGARDH examined specimens from the nest of Riparia riparia at Tirley, Gloucestershire (Coll. R S. George) and from poultry manure at Houghton, Huntingdonshire (Coll. C. Horton Smith). Hughes (1948) records it under the name M. carinatus from floor debris and sievings of Fig. 48. Macrocheles matrius Hull, female. Tectum. M. matrius is undoubtedly conspecific with Macrocheles subbadius var. robustulus (Berl.) Sellnick (1940). If the species described and figured by Sellnick is the same as robustulus, there is some doubt concerning this, then malrius must be considered a synonym. Macrocheles plumiventris Hull Holostaspis marginatus Berlese, A. (i88g). Acari, Myriopoda et Scorpioties, etc., fasc. 52, No. 4 and 5, figs. ? Macrocheles gladialor Hull, J. E. (1918). Trans. Nat. Soc. Northumb., 5 : 71, figs. ? Macrocheles plumipes Hull, J. E. (1918). torn. cit. : 72, fig. Macrocheles (Monoplites) oudemansii Hull, J. E. (1925). Ann. Mag. nat. Hist. (9), 15 : 215 (in part). Macrocheles plumiventris Hull, J. E. (1925). Ann. Mag. nat. Hist. (9), 15 : 216, figs. Nothrholaspis fimicola Sellnick, M. (1931). Akad. Wiss. Wien 140 : 765, fig. syn. nov. Female. The dorsal shield is strongly reticulated, especially in its posterior two-thirds. The lines of the mesh-work are distinctly crenulated (Text-fig. 49). The vertical setae (Di) which are well separated, and setae D2-D4, M2, series L and series Mg. are strongly plumose in their distal half (Text-fig. 50). Setae Mi are short and relatively weakly plumose ; setae D6-D8 and Mg2-3 are considerably finer and less plumose than the L and the remainder of the Mg. series. The marginal setae are situated on the serrated lateral margin of the dorsal shield (Text-fig. 51). The extra-marginal setae are plumose. The tritostemum is normal. All the ventral shields are strongly reticulated and. Please note that these images a
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