56 The Irish Naturalist. February, 



rounded, while the palp shows faint but recognisable traces of jointing, 

 and carries a few small bristles. The maxillary palps have an acute 

 basal process on the first segment, the second, third, and fourh segments 

 are equal to one another in length, the fifth half as long again as the 

 fourth and the sixth nearly as long as the fifth. The terminal (seventh) 

 segment is short and stout in the male, being only two-fifths as long as 

 the sixth segment; in the female, however, the seventh segment is two- 

 thirds as long as the sixth (figs, r, 4) ; the labial palp is remarkable for the 

 presence of numerous strong spines on its second segment, and for its 

 very broad and lobate terminal segment in both sexes (fig 5). 



The abdominal appendages carry long terminal bristles, two-thirds the 

 length of the appendage. The form of the sternum of the fifth abdominal 

 segment, with -the arrangement of the appendages and exsertile vesicles, 

 is shown in figure 9. The appendages of the ninth abdominal segment 

 are half as long again as those of the anterior segments, but their 

 terminal bristles are only slightly longer than those of the other append- 

 ages. 'The scales (fig. 8) are very dark, giving the insects a smoky 

 appearance where uninjured. 



The three specimens which may be regarded as types of the species 

 were taken on Lambay in June, 1906. Other localities in which the 

 insect has been collected are Glencullen. Co. Wicklow ; Mote Park, Co. 

 Roscommon; Inishmore, Aran, Co. Galway ; Mitchelstown, Co. Cork; 

 and Enniskillen, Co. Fermanagh. Evidently, therefore, this genus — 

 hitherto unknown in Northern Europe — has a wide distribution in 

 Ireland. 



Explanation of Plate 16. 



Fig. I. Pramachilis hibcrnicus. Female. Lateral view, X 6. 



2. „ ,, Male. Mandible, x 45. 



3. „ ,, ,, Maxillula — a, lacinia ; b. galea; 



c, palp, x 45. 



4. ,, ., ,, Maxilla — a, lacinia ; /> } galea ; 



c, palp ; d, stipes ; e, cardo, 

 x 30. 

 5- ., ,, ,, Palp of labium, x 30. 



6 ,, ,, „ Head showing compound 



eyes, ocelli (0.) ; labrum 

 (/.)» and base of feeler 

 X 30. 



7 .- »« Female. Terminal segments of feeler, 



x 30- 



8. ,, ., Scale from abdominal segment, x 220. 



9 •» .. Male. Fifth abdominal sternum, with 



appendages (a), and exsertile 

 vesicles, (z/), x 30. 



