172 



from eggs laid in the larvae of the Horn-fly ( Haematobia serrata) . 

 They were bred from eggs laid by a female confined with 200 

 maggots in a jar about a month previously. In all, 29 females 

 and 6 males issued from these larvae. As these numbers do not 

 represent an average, it is not certain that they are normal. 

 The metamorphoses of Stomoxys consumed about 14 days, those 

 oi Haematobia c\o^Q on to three weeks; the larvae of the latter 

 were more numerous in cow dung five or six days old than that 

 three or four days old. In the latter those of the larger flies 

 were more abundant. 



PAPERS READ. 



A Note On The Immigration of Hemiptera Into Oceanic 

 Islands. 



BY G. W. KIRKALDY. 



The geographical distribution of Insects is now so greatly 

 vitiated by interisland and intercontinental commerce, that the 

 smallest record of immigration, showing whether it is natural or 

 artificial, is of value. 



At a recent meeting of this Society, exhibition was made of a 

 Hemipteron, Piezodorus rubrofasciahcs (Fabr.). This Cimicid 

 has a very wide distribution, occurring in northern Australia, 

 New Caledonia, Murua, Lifu, Fiji, Tahiti, Japan, the Philip- 

 pines, Cochin China, India, Sumatra, Java, Abyssinia and Zanzi- 

 bar, that is to say, it may be expected almost anywhere in the 

 Australasian, Oriental or Ethiopian Regions, as well as in the 

 Manchurian Subregion. It has not established itself in the 

 Hawaiian Islands, at least it has not yet been found, but it is 

 very interesting to hear that an example was detected and killed 

 by Mr. Craw, while inspecting introduced plants, at the Port of 

 Honolulu. It is pretty certain that Piezodorus rubrofasciatus 

 would have become established here sooner or later, if systematic 

 plant-inspection had not been enforced. 



