1918] Dobson — A European Termite Reticulotermes lucifugus Rossi 101 



the nest apparently to get the benefit of the warmth from the sun 

 to hasten their development. This would appear to be the case 

 also with R. lucifugus with the one exception that they do not 

 reach the last nymphal instar in the previous season. I was im- 

 pressed with the fact that early in May (May 11-15, 1918) when 

 in the colonies of R. flavipes the nymphs of the winged adults had 

 just passed through their final molt (see above) the corresponding 

 nymphs in R. lucifugus colonies on the same hillside were molting 

 into the last nymphal instar and did not pass through their final 

 molt until some three weeks later. This difference is evidently 

 correlated with the fact that the adults of the latter species fly 

 later than those of the former. It will be interesting to know 

 whether the same difference obtains between R. flavipes and R. 

 virginicus in Virginia where Snyder finds the latter swarming a 

 month later than the former. 



I wish to express my indebtedness to Mr. Nathan Banks who 

 identified my specimens as belonging to the species R. lucifugus. 



EMPOASCA MALI LeB. ATTACKS MAN. 



By George G. Becker, 

 Agricultural Experiment Station, Fayetteville, Arkansas. 



On June 4, 1918, I was pricked several times on the arm by some 

 leaf -hoppers which Mr. W. D. Gibson determined for me as 

 Empoasca mali LeB. These insects were attracted to the light 

 under which I was studying. The sting of these insects was very in- 

 significant. I should say not more than half so severe as a mosquito 

 bite. There was no swelling, irritation or other after effects. It 

 seemed that this Jassid did not do much more than merely prick 

 the skin. On being disturbed, the leaf -hoppers which I observed 

 moved off a little distance and again inserted their beaks in my 

 arm. 



