120 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Mr. Smyth spoke of the superstitions amongst Arizonans 

 about the "Campomoche" killing stock. 



Mr. Rohwer told of a recent paper by the Swedish en- 

 tomologist, Mr. Tullgren, in which he showed that two Euro- 

 pean species of sawflies live inside the young fruit of plum 

 and apple. These belong to the genus Hoplocampa, and it is 

 probable that some day it will be found that some of the 

 American species of Hoplocampa live inside of fruit. 



Mr. Quaintance said that not long ago Mr. Rohwer deter- 

 mined a species of Hoplocampa from California which lives 

 inside of cherries. 



Mr. Rohwer stated that no economic data was sent with 

 the specimens to him. 



The following papers were accepted for publication: 



THE OCCURRENCE OF THE MYMARID GENUS STETHYNIUM 



ENOCK IN WEST AUSTRALIA. 



BY A. A. GIRAULT. 



The genus Stethynium was recently described by Knock 

 (Trans. Ent. Soc. Lond., Dec. 31, 1909, pp. 452-453, pi. xii, 

 figs. 1-5) from an English species. It is a rather peculiar 

 group characterized by bearing a well-defined, 3-jointed an- 

 tennal club and peculiarly shaped fore wings which have the 

 marginal cilia characteristically arranged. Elsewhere I re- 

 cord an American species of this genus, and just recently Dr. 

 L,. O. Howard has sent me a distinct form of it from West 

 Australia, which I describe beyond. It might be well worth 

 recording in this connection that the abnormally broad posterior 

 wings which characterize this species are also borne by an 

 Anagnis from the same locality. It remains to be seen what 

 significance this fact has, but it may be that the forms with 

 broad posterior wings are peculiar to the Australian region 

 alone; an Alaptus from that region, however, has the usual 

 slender caudal wings, and this is true of forms in other genera 

 described from the Australian region. 



I describe the West Australian species of Stethynium here- 

 with and then give a diagnostic table of the few known species 

 of the genus. Perhaps Stethynium, in regard to distribution, 

 is typical of mymarid genera; thus, it is worldwide in its dis- 

 tribution, common to several continents, but its species ap- 

 pear to be restricted to the limits, at the most, of the con- 

 tinents to which they are indigenous; that is to say, the species 

 indigenous to a continent are distinct from the native species 

 of other continents. 



