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 Grorcr 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. 
