158 MAINE AGRICULTURAL EXPERIMENT STATION. I915. 



Typhlocyba tenerrhna Herrick-Schaeffer. 



Typhlocyba teiicrriiiia Herrick-Schaeffer. D. Ins. p 124, 10 u. 164.16 



(vide Melichar). 

 Typhlocyba tenerrhna Gillette. Proc. U. S. Nat'l Museum XX, p. 770. 



A slender pale yellow species with a series of dark spots in fronit of 

 the cross nervures and black spots at ends of outer cross nervures and 

 inner and outer apical nervule. Length 3 mm. 



Specimens collected at Orono Ju^^ aoth, Portland Aug. 13, Van 

 Buren Aug. 27th, 1913. 



Typhlocyba couimissuralis Stal. 



Typhlocyba commissnralis S'tal, Stett. Ent. Zeit., XIX, 196, (1858). 

 Typhlocyba commissnralis Gillette. Proc. U. S. Nat'l Mus. XX, 769. 



(1898). 



White with a black commissural line. Closely resembling rosae ex- 

 cept for the black stripe running along the inner border of elytra. 

 Length 3.5-4 mm. 



This species was described from Sitka, Alaska, and Gillette has 

 added records for Vancouver Island and Cimarron, Colorado. I have not 

 seen any records for localities farther east and consequently the record 

 for Maine gives it a greatly extended range. The food plants men- 

 tioned by Gillette are alder, willow and weeds. The species is closely 

 related to rosae but larger and Gillette says that the commissural line 

 is wanting in some specimens in which case they are not distinguishable 

 from rosae except by the slightly larger size. 



The species evidently has no economic importance in Maine as aside 

 from its extreme rarity it does not attack plants of special value. 



The specimens on which our record is based were taken at Van 

 Buren Aug. 27th, 1913, and Orono Aug. i8th and 19th, 1914. 



The Rose Leafhopper. 

 Typhlocyba rosae L. 



This minute and widely distributed species has been taken at Orono 

 in 1913 and 1914, and while not in such numbers as are sometimes 

 noted the leaves on some of the bushes affected showed a very decided 

 whitening from their punctures. It will doubtless be found generally 

 distributed over the state wherever roses are cultivated. Portland, 

 Aug. 14. Westbrook (Stover). 



This species is nearly white without any conspicuous dark markings, 

 about three millimeters long quite slender and usually conspicuous 

 only when the noimbers have become sufficient to give the leaves a 

 spotted or whitened appearance. 



Since it is the only common species affecting the rose there is little 

 difficulty in identifying it. 



