320 Mr. ^y. L. Distant on TTonioptera. 



Tiicho7iiscus pi/gmaus liave not yet been taken in North 

 Devon ; the hitter probably occurs, but has been overlookecl. 



Of (lie seventeen sj^ecies I have collected in North Devon, 

 the following; did not occur to me on Lundy : — Haplothalmus 

 datu'cus, B.-L. (near Barnstaple) ; Porcellio j^t'ctus, Brandt 

 (only once) ; P. Iccvis, Latr. (only once in the north, but very 

 frequently in a garden at Topsham in South Devon) ; P. dila- 

 tatuSy Brandt ; Armadillidium album, DoUfus (River Taw), 

 A. pulchellum, A. nasatum ; and Metoponorthus pridnosus, 

 Brandt. 



I have never seen the butterscotch-coloured form of 

 0. asellus in North Devon, and it is also interesting to 

 note that, as regards Philoscia couchii, the typical grey 

 form occurs at Lundy, whereas on the North Devon coast I 

 liave only observed a light variety, marbled with brown, 

 something like T. pnsillus. A more extended study of 

 the land Isopoda of both localities is necessary before an 

 opinion can be expressed on the relations of the forms 

 occurring on the mainland of North Devon and those on the 

 island. 



XXXlX.—Ehr/nchotal Nutes.—XLIX. By W. L. Distant. 



HOMOPTERA. 



Fam. Fulgoridse. 

 Subfam. RiCANiiN^. 



The study of this subfamily has been very considerably 

 advanced by the publication in 3 898 of Dr. Melichar's 

 " Monographic der Ricaniiden," which was published in the 

 Annal. k.-k. nat. Hofmu?. Bd. xiii., and is in the following 

 ])ages referred to as " Mon. Ricaniid." Edmund Schmidt 

 (Stett. ent. Zeit. 1905) has also, in his ' Die Ricaniiden des 

 h>tettiner Museums/ described a number of new species. 

 Fowler, in the ' Biol. Centr.-Amer.,' has dealt with those of 

 Central America ; and the splendid collection made by 

 Wallace in the Malayan Archipelago w^as described by 

 Walker some forty years ago, while some generic revision of 

 these species is attempted in this paper. The writer has had 

 an opportunity of working out a considerable number of the 

 species found in British India (Faun. Brit. Ind., Rynch. iii. 

 1906). We know little of the Ricaniinie of Australia, and 



