384 MK. J. N. HALBERT : NOTES ON ACARI, 
same species. The palpi, which are characteristic in the species of this 
genus, are identical with those of S. inermis, Trag. Dr. Tragardh, to whom 
drawings were sent, agrees with me in this identification. The following is 
a brief description of the Irish form: — Colour red (length 490 ya). Body of 
the usual subrhomboidal form, shoulders prominent, the body margins 
gradually narrowing to the posterior margin where there are three small 
lobes. Epidermis minutely lined. '\laxillarj plate longer than broad ; 
mandible long (length about 286 fi), extremities reaching to near the end of 
the second palp segment. Palps (PI. 21. fig- 23 b) long and slender, apparently 
four-segmented, second and third segments armed at their ventral extremity 
with a strong spatulate hair. Legs long and of very uniform thickness so 
that the tarsi are truncated at the ends, where they are armed with two flat 
lobes and small claws. Length of the first pair 510 /ti, of the fourth 530 fi. 
Locality. Fouad amongst dripping wet moss and liverworts {Conoceplialus 
conicus) at the overflow of a small reservoir at Greystones, Co. Wicklow, 
July 1920, with such species as Notaspis lacustris, Oribata lucasii, 
Episeius italims, and others. 
Neophyllobius saxatilis, sp. nov. , L^l. 21. figs. 24 a, b.) 
Colour as in i\r. elegans, Berl. Form oval, cephalothorax not well marked 
off from abdomen. Eyes double lensed. There is a double row of six strong 
hairs, placed rather close together, down the middle of the body, and a row 
of eioht similar hairs along each outer margin ; all of these hairs are spicu- 
late, rather strongly curved and arise from small tubercles. Epimera large, 
inner margins indistinct, with from two to three hairs which are much 
weaker than those of the dorsum. Genital area tapering to a point and 
enclosing a small anal plate with four marginal hairs. Rostrum triangular, 
endino- in a single lobe. Palps very short and stout, second segment longer 
than the two end segments together, with two dorsal spines, one spiculate 
and stronger than the other ; third segment with one dorsal spine ; fnurth 
segment ending in two curved spines, and carrying an appendage which is 
contracted at the apex and has three spines. 
Legs much as in jY. elegans, Berlese ; there is a long spiculate hair on the 
third segment of each leg, that of the last pair bent at the end, length about 
264 /i (fig. 24 6). The legs measure about 396 ^u, 330 /a, 363 /i, and 420 /^ in 
length. 
A species allied to N. elegans, Berlese (1, Fasc. xxxiv. n. 5), but differing 
in the size and form of the body. The median dorsal series of spines are 
more numerous and are placed closer together, and the long hairs on the third 
seo-raent of the last pair of legs are shorter and of different form. Verified 
by Dr. Berlese. 
Locality. Not uncommon on lichen-covered rocks at Howth summit, 
Co. Dublin, September. 
