39 62 Proceedings of the Royal Irish Academy. 



The dorsal surface is like that of the female, except for the smaller size of 

 the plates ; the hinder one is not so truncated at the extremity. Hair 

 armature, much as in the adult. The ventral surface has the usual V-shaped 

 sternal plate, with four pairs of long marginal bristles. 



One of the specimens is apparently a male ; in this the sternal plate 

 is larger, and the legs are decidedly stouter, especially the second pair ; on 

 the underside of the tarsus there is a small rounded papilla. This specimen 

 measures 1049/x in length. 



Distribution. — Spanish coast (Finisterre,Berlese). There seems little doubt 

 that the male recorded by Tietze from the Italian coast as " Gamasus sp. ? " 

 (82, see also 22, p. 948) is the protonymph of the present species. The varia- 

 tions which he describes and figures in the shape of the epistome represent 

 the different form of this organ in the two sexes. 



Cyrtolaelaps nemorensis C. L. Koch). 



Females of this very distinct species were found in moss on Clare Island 

 in July ; and also on Achill Island under the bark of fir trees in September. 



Distribution. — Probably a common European species ; has been recorded 

 from Germany, Holland, and Italy. 



Cyrtolaelaps cervus (Kramer). 



Apparently not uncommon ; Achill Island, under bark, September ; 

 Mulranny, under stones in nest of Lasius niger ; Knappagh Wood and Lough 

 Fenagh, in moss. 



Distribution. — Widespread in Europe. 



Cyrtolaelaps transisalae Oudms. (PI. V, fig. 9.) 



1902. Oudemans 60, p. 28, Plate hi, figs. 43-46. 



Clare Island, in moss on Croaghmore, July ; Achill Island, under bark, 

 September; Knappagh Wood, August; Coolbareen Lough, several in 

 sphagnum, July. 



Apparently a common species in suitable localities in the district, especially 

 on the hills ; quite a number were obtained from a small quantity of 

 sphagnum gathered on the slopes of Croaghpatrick. 



The species may be easily recognized by the shape of the epistome 

 (fig. 9). The side incisions of the dorsal plate are comparatively straight, and 

 less bent downwards than in the allied species. 



Amongst my specimens there are a few which are presumably in the 

 deutonymphal stage, These are smaller and less chitinized than the others 



