On the Synonymy of some European Diplopods. 407 



of fore wing white, tinged with } T ellow on disk, the costal area 

 irrorated with red-hrown ; hind wing orange-yellow, the costal ana 

 white, irrora ted with red-brown except towards base, the terminal 

 band formed by red-brown irroration. 



Hab. E. Tuekestan (Aoinoff), 1 5 type. Exp. 22 mm. 



(7 a) Noctuelia josialis, sp. n. 



<3 . Head and tegnlse orange-yellow, the latter with black-brown 

 patches at tips glossed with blue, with orange-yellow stripes at 

 sides and the patagia with some orange-yellow scales ; abdomen 

 black-brown with a cupreous gloss and orange-yellow subdorsal 

 stripes, the genital tufts white ; antennae black : irons with black 

 patch; palpi black, the basal joint and base of 2nd joint yellow ; 

 femora whitish tinged with brown ; ventral surface of abdomen 

 with white stripe except at extremity. Fore wing black-brown 

 with a cupreous gloss ; an orange-yellow fascia along median 

 nervure to near termen where its extremity is rounded ; an orange- 

 yellow streak on inner margin. Hind wing black-brown with a 

 cupreous gloss; a broad orange-yellow stripe in and below the cell 

 to near termen, extending to inner margin at base and narrowing 

 somewhat with its lower edge oblique beyond the cell. 



Hab. Venezuela, Esteban Valley, Las Quiguas, 1 d type. 

 Exp. 30 millim. 



XXXVII. — On the Synonymy of some European Diplopods 

 (Myriapoda), ivith Special Reference to Three Leachian 

 Species. By KiCHAKD S. Bagnall, F.L.S. 



One of the drawbacks to students of British Myriapods 

 undoubtedly lies in the unsatisfactorystate of the nomenclature. 

 When one remembers that, amongst the Diplopods, there 

 are so many instances of two (or more) species being so closely 

 related as to be practically indistinguishable, except bv a 

 dissection and study of the male, one at once realizes how 

 difficult it must be for a discoverer of a species so closely 

 allied to one already known to decide which of the two was 

 the one described by an older naturalist at a time when 

 present-day methods were not used. 



A case in point : Braehyiulus pusilhts, a graceful little 

 Julid with a pair of yellowish stripes, down the back, was 

 described by Leach from Edinburgh and London more than 

 a hundred years ago. In recent years VerhoefF showed that 

 there were two species, externally alike but abundantly 



