66 Arachn. 
ARACHWIDA. 
pestre* Achillea millefolium^* A. moschata^ Alnus incana^ Artemisia 
vulgaris* Betula alba, Centaurea jacea* Daucus carota* Euphorbia 
cyparissias* Fraxinus ornus* Galium mollugo, G. verum, Geranium 
palustre, Populus tremula, Prunus padus, P. spinosa, P. paradisiaca^ 
Pyrus malus, Quercus coccifera, Salix alba, Sambucus ebulus,* Saxifraga 
aizoides, S. oppositifolia,* Taxus baccata, Tilia argentea* T. grandijlora, 
Veronica chamcedrys, and Viola sylvestris. The Phytopti themselves are 
in no case described ; but identification with supposed fungoid growths 
are in some cases made. 
F. Thomas, Z. ges. Naturw. (3) iv. pp. 740-745, describes a sixth Phy- 
toptocecidium from Acer campestre. 
J. A. Ryder, Am. Nat. xiii. p. 704, figures and describes (without name) 
a species of Phytoptus found in galls on maple-leaves. 
Typhlodromus oiliioorus [sic], sp. n., W. H. Ashmead, Oanad. Ent. vi. 
p. 160, Florida. 
Oligotrophus tanaceticolus, sp. n., F. Karsch, JB. zool. Sect. Westf. 
Ver. 1878-79, pp. 26-31, “ Die Gallen (Zoocecidien) des Wurmkrautsund 
ihre Erzeuger.” 
Pentastomiidj:. 
Rudolph Leuckart, in “ Allgemeine Naturgeschichte der Parasiten, mit 
besonderen Beriicksichtigung der bei dem Menschen schmarotzenden 
Arten,” pp. 1-216, and woodcuts (Leipzig & Heidelberg : 1879), figures 
Pentastomum denticulatum, p. 103, and P. constrictum, p. 179. 
