IIVDRACARINA FROM STRATIIEARN 91 



is without any spines, and the second segment also wants the 

 long, characteristic bristle on the flexor surface. It has, however, 

 midway on the extensor surface one short spine, and on the 

 distal inner surface two moderately long bristles, one at the 

 outer edge and the other inside and slightly in advance of it. 

 The inner surface of the third segment has three long hairs, not 

 six as in the imago. Of these three, one lies nearly proximal 

 close to the extensor edge, the other two are distal and shorter, 

 one being at the extensor edge and the other close to it on the 

 inner surface. Extensor surface of fourth sesrment has three hairs 

 distal, the middle one being longest. The hair pores on flexor 

 surface agree with those of imago. At the distal extremity of 

 same surface there is a short ha^ir which stands well out. 



The capitulum is similar to that of the imago, and lies in a 

 recess which is relatively large. 



The posterior end of the first pair of epimera is tapered, and 

 runs well down towards the broad posterior end of the second 

 pair. The suture between the second and third pairs is open 

 for about one-third the width of the epimera, while the suture 

 between the third and fourth pairs extends in from the outer 

 edge for nearly three-fourths of the width. The fourth pair of 

 epimera are nearly rectangular, and have their inner margins 

 spreading out posteriorly. All margins are thick. 



The genital area lies partly beyond the epimera. It has four 

 acetabula and is surrounded by a ring. Between the genital area 

 and the epimera there is a small sclerite. 



The legs are sparingly equipped with bristles. Fourth and 

 fifth segments of the fourth pair of legs have a short hair like the 

 imago. 



Of the earlier stages in the life-history nothing is )''et 

 known. L. angidata is the tenth species of Lebertia now 

 known to occur within the Britannic area. Descriptions of the 

 other nine species appear in i\\Q Journal of the Qiiekett Micro 

 Club (Ser. 2), xii., 479-5 H, pls. 33 and 34. 



