1966] 
Nutting — Paraneotermes 
143 
number per flight was approximately five. The usual number seen 
during a flight was between one and 12, but on three occasions in 
seven years, the numbers were 23, 48 and 57. Both sexes have been 
taken in single flights, although no record of the distribution was 
made. Concurrent flights have been recorded five times: At 1.8, 2.6, 
2.8, 12 and 13 miles from, the study area. 
Paraneotermes was observed in natural flight only as it flew in 
rapidly, between two and six feet above the ground, to lighted areas. 
After alighting on walls or pavement, individuals frequently leaped 
and flew about very erratically. Light (’37) and Light and Weesner 
C48) briefly described flights under what were probably abnormal 
conditions, and Light termed the species a strong and rapid flier. 
Although in a dry container alates will die in less than a day after 
capture, presumably of desiccation, they have been held for as long 
as two weeks in petri dishes containing 4% agar. Alates have been 
noted to remain in the vicinity of lights up to 80 minutes after their 
arrival. 
Post-flight behavior. - — Alates of this species were observed 
to lose their wings much more readily than many other members of 
Figure 6. Combinations of temperature and relative humidity at approxi- 
mate flight time (sunset plus 15 min.) for Paraneotermes simplicicornis at 
Tucson, Arizona. The limits of these conditions for 49 flights are shown 
by the closed curve. Conditions for the 91 evenings in the 1962 flight season 
are plotted as follows: x, at the start of 29 flights; solid circles, at flight 
time on 15 evenings when flights may have been prevented by rain or 
wind ; open circles, at flight time on 47 evenings when no flights were ob- 
served. In the latter case these conditions could have been limiting on 13 
evenings where they fell outside the curve. 
