YORKSHIRE NATURALISTS' UNION 



17 



YORKSHIKE 

 HEMIPTERA-HOMOPTERA IN 1877. 



(Family PSYLLID.'E). 

 By S. L. MOSLEY, Huddersfield. 



The Hemiptera-Homoptera and Heteroptera, like the Diptera, 

 are very much neglected, the reasons in the one case being similar 

 to those in the other. Mr. Scott's monograph of this family in 

 the ' Transactions of the Entomological Society of London,' and 

 his kind offer to examine any specimens that may be sent to him, 

 were instrumental in inducing me to take up the Psyllidce as a 

 starting-point ; and no doubt if this part of England were worked 

 well in this class many species which before were considered rare 

 would become extremely common, such as P. aini, and many new 

 species would come to light and leave a record for future York- 

 shire naturalists to be justly proud of 



The principal work I have done in this order has been 

 brought before the Huddersfield Scientific Club, which I beheve 

 is the only Society connected with the Union that has done 

 anything in this line. My work only commenced late this season 

 (August), therefore my list of captures is not very long; but, 

 judging from what I have done, I think Yorkshire * may be 

 expected to produce a great majority of the British Psyllida:. 



COLLECTION AND PRESERVATION. 



The best way to collect Psyllidce is by beating into a larva 

 tray or umbrella; putting the species from each tree or plant into 

 separate boxes or tubes and labeUing on the spot to prevent confu- 

 sion, as each species has its particular tree. Kill by means of the 

 cyanide bottle, and mount on small cards like small coleoptera. 

 One or two specimens should have their wings spread out so as 

 to show the venation, as many of the species may be determined 



D2, 



