92 Mr. A. G. Butler on the Genus Hemisphcerius. 



X. — List of the Species of the Homopterous Genus Hemi- 

 sphasrius, with Descriptions of new Forms in the Collection 

 of the British Museum. By Arthur Gardiner Butler, 

 F.L.S., F.Z.S., &c. 



[Plate IV.] 



The beautiful little genus of Fulgoridse known by the name 

 of Hemisphcerius is particularly interesting, from its general 

 resemblance to the Coleopterous genus Coccinella ; this simi- 

 larity is best exemplified in H. favimacula, H. cruentatus, and 

 H. favus, all of which, to an inexperienced eye, might pass for 

 ladybirds. 



Of the forty-two species now known to science, the types 

 of no less than thirty-four are in the Museum collection, whilst 

 we possess at the same time four other described forms, thus 

 showing a deficiency of only four of the species hitherto named 

 by naturalists. Under these favourable circumstances I thought 

 it would be well to give a list of the species, separating them 

 into sections by the colouring of their tegmina (rather than by 

 structural characters), in order to their easier determination 

 by fellow workers in the group. I am at the same time fully 

 aware that this arrangement of the species is not a natural 

 one ; but I employ it as being a ready guide in the identification 

 of the species. 



I. Tegmina red, with three yellow or green streaks on each side. 



1. Hemisphairius coccinelloides. PI. IV. fig. 2. 



Isms coccinelloides, Burmeister, Meyen, Reise, Nova Acta Ph. Med. 



Soc. C. Leop. N. C. xvi. p. 305. n. 38, pi. 41. fig. 11 (1833). 

 Hemisphcerius coccinelloides, Schaum, Allg. Enc. Wissensch. Kunst. i. 



p. 51. 



Hob. Philippines {Wood & Cuming). B.M. 



II. Tegmina piceous, with three testaceous streaks. 

 2. Hemisphcerius lunaris. 



Hemisphcerius lunaris, Walker, Journ. Linn. Soc. x. p. 132. n. 134 



(1870). 



Hah. New Guinea {Wallace). Type, B.M. 



III. Tegmina piceous, ivith two or three yellow streaks. 



3. Hemisphcerius milieus. PI. IV. fig. 1. 

 Hemisphcerius milieus, St81, Trans. Ent. Soc. ser. 3, i. p. 588. n. 9 (1863). 

 Hah. Mysol {Wallace). Type, B.M. 



