Vol. XXI] ENTOMOLOGICAL NEWS. 22Q 



"Cercus sort of a spike-like projection at tip of abdomen in female." 

 "Cercus is an appendage on the end of the abdomen of the grass- 

 hopper used in carrying things and for fighting." 



"Tegmina, the opaque cell on the front edge of the wing near the 

 outer end." 



6. Give four types of Hymenoptera. 



"Hymenoptera Squash bug, assassin bug, potato bug, Giant water 

 bug." 



7. Discuss methods of insect dispersal. (100-200 words). 

 "There are different methods of insect dispersal. One way is by 



wind, being carried a great distance by a hard windstorm. They are 

 also carried by water the insect laying an egg and this being fastened to 

 a piece of wood that is carried by the water to a great distance. Some- 

 times the insect is carried also in the same method as the egg is car- 

 ried. Insects are carried from one place to another by birds and by 

 this method they are scattered over different countries as birds are 

 known to fly from one country to another. Animals also carry them 

 about to different localities. The importation of grains and fruits and 

 other products from the different countries have brought into the 

 country to which the goods were shipped many insects that are not 

 known to the country." 



8. Discuss possible rapidity of reproduction in insects, and the na- 

 tural checks which hold them within bounds. 



"Insects are about the rapidest in reproduction of the different things 

 known. To show how many insects could be formed in one year, take 

 two flies and if the female fly laid 100 eggs during its life and half of 

 those were female and each one of the female laid 100 eggs and so on at 

 the end of the year there would be about eighty million bushel of flies. 

 It is the same with nearly all insects that the reproduction is very 

 rapid. The tergites are very fast reproducing insects, the female lay- 

 ing about 50 to 100 a second, and at that rate there would be a great 

 many of these insects produced in a year. If it was not for the differ- 

 ent natural methods of checking the increase the countries would be 

 over-run by them." 



"There is a fungi disease that affect different insects, and it is this 

 fungi that kills the grasshopper and keeps it from increasing so rapidly." 



"Insects are not comparable to man in their reproduction since there 

 are scarcely any insect which produce only one other insect in a year. 

 On the contrary, insects produce many eggs which hatch and produce 

 several hundred insects which in turn produce several hundred more." 



"The grasshopper can produce one species in the spring and in the 

 fall that species will produce another species, and it runs on like that 

 until several hundred species may be produced." 



