86 THE CANADIAN ENTOMOLOGIST 



Triphleps insidiosa var. tristicolor White. 29 July, '18. New to the 

 Maine list. 



MlRID^. 



Collaria meilleurii Provancher. 29 July, '18; 1 Aug., '19. 

 Miris dolabratus (Linne). 24 July, '18. 



In his exhaustive accounts of this species,^ Professor Osborn advances the 

 hypothesis that it is an introduced form, having reached this country about 

 1800, but it seems to me at least equally probable that it is truly holarctic. 

 Horvath^ includes dolabratus in his list of species which owe their presence 

 here "non a une importation artificielle," adducing divers general considerations 

 not touched upon by Osborn. With reference to the five arguments proposed 

 by the latter, we may note that the early records of Hemiptera.omit also many 

 very common and certainly native forms and are in general too fragmentary 

 to have much weight in the matter; that the indications of "a gradual west- 

 ward and southward dispersal" may possibly be correlated with the spread of 

 interest in the Hemiptera rather than with the movements of the species; and that 

 the presence of dolabratus in the interior of British Columbia (Lillooet) and in 

 wild parts of northern Maine (Traveller Mt.), according to records which I 

 have published, is not very likely to be due to the introduction of cultivated 

 grasses from Europe. The species occurs in Siberia, as well as in Europe, and 

 we should await further evidence from the interior of British America and from 

 Alaska before considering the question as settled. 



Stenodema vicinum (Provancher). 24 July, '18; 3 Aug., '19. 



PlatytylelUis insitivus (Say). 4 Aug., '19. 



Pithanus maerkelii (Herrich-Schaeffer). 30 July, '18; 31 July ,'19. 



Another species which may be either holarctic or introduced. 



Neurocoplus nubilus (Say). 31 July, '18. 



Phytocoris lasiomerus Reuter. 3 Aug., '19. 



Phytocoris pallidicornis Reuter. 8 Aug., '19. 



Phytocoris eximiiis Reuter. 6 Aug., '19. 



Phytocoris tibialis Reuter. 3 Aug., '19. New to the Maine List. 



Phytocoris mundiis Reuter, var. 31 July, '18. 



Adelphocoris rapidus (Say). 31 July, '19. 



Poeciloscytus basalis Reuter. 3 Aug., '18. 



Capsus ater (Linne). 24 July, '18. 



Coccobaphes sanguinareus (Uhler). 10 Aug., '19. 



Lygiis pratensis var. oblineatus (Say). 3 Aug., '18. 



Lygus pabulinus var. signifer Reuter. 27 July, '18; 10 Aug., '19. 



Lygus confusus Knight. 10 Aug., '19. 



One male and two females of this species, hitherto known only from the 

 single type and an associated female. Knight has studied and determined 

 these specimens. 



Lygus communis Knight. 3 Aug., '19. 



Lygus omnivagus Knight. 27 July, '18. 



Lygus belfragei Reuter. 2 Aug., '18; 28 July, '19. 



5. The meadow plant bug, Bull. Maine Agr. Exp. Sta., No. 276, 1919. The meadow- 

 plant bug, Miris dolabratus, Tour Agr. Research, Vol. 1.5, 1918, pp. 175-200. 



6. Rels. entre faunes Hem. Eur. et Am., Ann. Mus. Nat. Hungarici, Vol. 6, 1908, pp. 

 1-14. 



