1907. 



53 



HEMIPTERA. 



BY J. N. HALBERT. 



The following list of forty species of Hemiptera can only be 

 considered as a contribution towards a more complete list. 

 There are no previous records of these insects from the island. 



The family Aphidae remains to be investigated. Only a single 

 species, found abundantly in ants' nests, was collected. A 

 species of ' Mealy-bug " {Dactylopius citri) also occuis in nests 

 of the small brown ant Lasius fuscus. 



Of the species recorded, Dicyphns errans is an addition to the 

 Irish list. Microphysa elegantula, found on lichens growing on 

 old Hawthorn trees, and Piesma quadrata have not been pre- 

 viously found in the Dublin district. A few of the Homoptera, 

 notably Lihtrnia leptosoma and L. mesomela, are rather local 

 insects in Ireland. 



Heteroptera. 



Acanthosoma hsemorrboidale, L. 

 Stygnus arenarius, Hahn. 

 Scolopostethus affinis, Schill. 

 S. neglectus, Edw. 

 Piesina quadrata, Fieb. 

 Orthostira brunnea, Fall. 

 Velia currens, Fab. 

 Nabis flavornarginatus, Scholtz. 

 Salda saltatoria, L,. 



Anthocoris confusus, Reut. 

 A. sylvestris, E. 

 Triphleps tninuta, L,. 

 Microphysa elegantula, Baer. 

 Pithanus Maerkeli, H. S. 

 Leptopterna ferrugata, Fall. 

 Rhopalotomus ater, E. 

 Dicypbus errans, Wolff. 

 Plagiognathus viridulus, Fall. 



Homoptera. 



Cixius cunicularis, E. 

 Eiburnia leptosoma, Flor 

 E. pellucida, Fab. 

 E. linibata, Fab. 

 L. mesotnela, Bob. 

 Dicrauothropis bamata, Bob. 

 Philsenus spuniarius, E- 

 P. lineatus, L. 



Megopbthalmus scanicus, Fall. 

 Acrocephalus nervosus, Schr. 

 A. albifrons, L. 

 Athysanus obsoletus, Kbtu. 



Cicadula sexuotata, Fall. 



Dicraneura sp. 



Eupteryx vittatus, E. 



E. urticae, Fab. 



E. stachydearum, Hardj\ 



Apbalara exilis, Web. and Mobr. 



Psylla peregrina, Forst. 



Trioza urticae, E. 



Dactylopius citri (Risso). In nest of 



Lasius fuscus. 

 Forda forniicaria, Heyd. Atroot. c > of 



grasses, and in ants' nests. 



