218 Mr. II. Scott on 



before tlie mitldle to about | the length. The median con- 

 nexivum behind tergite 2 is bare, instead of having ratlier 

 long bristles as in the type-form ; and instead of being 

 terminated behind by two wide chitinous elevated areas, 

 much bristled, it has only two small tubercular prominences, 

 each l)earing three bristles. Tliese last characters are the 

 most important which I have found to separate var. pumila 

 from iy^\cQ\ fletcheri. 



I do not consider the differences sufficient for the erection 

 o{ pumila as a distinct species, and therefore place it as a 

 " var.^^ o^fletcheri. 



Loc. Ceylon. 



3 c? , 4 ? , taken from Pipistrellus abramuSj at Pera- 

 deniya, xi. 1911, by Fryer. 



Nycleribia^ Latreille, 

 Subgenus Acrocholidia, Kolenati, 



3. Nycteribia [Acrocholidia) euxesta (Speiser). 

 (Pis. X., XI. figs. 6-9.) 



PetiiciUidia euxetta, Speiser, Arch. Naturg. Ixvii. 1, 1901, p. 29. 



This species was described from 2 f^ and 1 ? from Burma, 

 preserved in the Genoa Museum. Through the kindness of 

 J)r, R> Gestro I have been able to examine these three 

 original specimeiis, and find that 2 S ^i'^ 4 ? obtained by 

 Fryer in Ceylou agi'ee closely with them. The species, 

 liowfiver, cannot be retained under the existing classification 

 in the genus Penicil/idia, since an examination with a com- 

 pound microscope has convinced me that eyes are quite 

 absent ; it should, he referrjed to the subgenus Acrocholidia 

 of Nycteribia, 



The length of tlie original specimens was given as3'5 mm., 

 that of the Ceylon specimens is about 3 mm. Speiser stated 

 that the thorax ventrally was longer than broad ; in the 

 Ceylon specimens it is about as long as broad; in some 

 specimens, ONAJiig to being curved upwards at the sides, 

 it appears a little longer than broad, but measurement with 

 the help of a drawing-apparatus has not shown this to be 

 actually the case (PI. XI. fig. 7). 



The ABDOMEN was not very completely described in the 

 original description. In the ^ the true busal teryite is 

 small, not reaching to the sides of the abdouien, slightly 

 broader behind than at the base, pale and whitish ; its surface 

 bare except for a fe^y very short bristles in the middle, its 



