LEAFHOPPERS OF MAINE. I49 



BaklutJia punctata Thunb. 



Cicada punctata Thunberg. Act. Ups. VI, 21, (1782). 



Jassus punctatiis Walker. Homop. 877, III. 



Gnathodiis punctatiis Fieber. Verb. Zool. Bot. Ges. in VVein. XVI, 505. 



Typhlocyba punctata Fitch. Prov. Pet. Faune Canad. Ill, 301, I'Spo, 



Gnathodns punctatus Van Duzee. Am. Ent. Soc. Trans. XXI, 307. 



Varies from liglit gray to green but distinctly marked with a number 

 of black spots on the elytra. The head is short, rounded in front 

 nearly the width of the pronotum, the body long and slender. Length 

 4 mm. 



This, is a widely distributed and very common species throughout 

 the state as also throughout a great range in North America and Europe. 

 It 'is found most commonly in grassland or on cereal crops but appears 

 to have a wide range of food plants. In Maine it has been taken in 

 numbers from meadows especially those inclnding timothy and clover 

 at Orono, North Harpswell, Portland, Highmoor Farm, Mt. Katahdin, 

 Houlton, Fort Fairfield, Mars Hill, Phair, Fort Kent. Also common 

 in oats at Orono, Highmoor Farm and Mars Hill. Other localities 

 without special, record of food plants are Grand Lakes Stream, Aug. 

 i6th. (A. P. M.) Ambajejus, Aug. 19th, Kineo, Aug 17th. Adults have 

 been taken from July 29th to Aug. 28th but larvae have also been 

 noticed as late as latter part of July. 



The species is to be counted of distinct economic importance and 

 there can be no doubt that: meadows especially suffer a considerable 

 loss from their drain upon the grass. From what is known of the life 

 history it is ' quite certain that the measures used for the summer 

 treatment of other species will be of value and it is probable that where 

 practicable the burning in late fall or early spring will prove useful. 



BalcliitJia inipictus Van Duzee. 

 Gnathodus impictus Van Duzee. Canad. Entom. XXIV, 113, (1892). 



Similar to punctatus but usually light green or gray .with no trace of 

 spot. The head somewhat more produced or rounded. Length 4 mm. 



Specimens of this species are recorded for Orono, July 28th, Aug. 

 Sth, North Harpswell Aug. 12th, Portland, Riverton Park, Aug. 14th, 

 Mt. Katahdin Aug. 22nd. 



Lack of the black spots seems to be about the only decisive character 

 separating this form from punctatus but the facies is usually sufficiently 

 different to give confidence in the separation. It is much less common 

 and herxe may be ignored from the economiic standpoint. 



Typhlocybidae. 



The members of this group are as a rule readily separated from the 

 other Jassidae by the four longitudinal veins of the elytra which run 

 without forking to the cross nervures. The apical cells are four and 

 with very few exceptions the ocelli are wanting. The following key 



