432 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 9 



cucurbits in the United States, tristis being the more important pest. 

 During 1915 the various stages of a third species, Anasa andresii Guer., 

 were present on squash at Baton Rouge, Louisiana. The damage, 

 while not especially severe, was sufficient to warrant a study of the 

 life-history and habits of the species, especially since there appears to 

 be no reference to it in the literature of economic entomology. 



The following preliminary notes have been compiled from observa- 

 tions made during 1915 by the writer and by Mr. C. E. Smith, who has 

 assisted in the studies concerning the life history. 



Distribution of the Species 



Anasa andresii was first described as Coreus andresii by Guerin- 

 Meneville in 1856 from Cuba.^ It is also known to be present in 

 Mexico, Guatemala, Costa Rica, Panama and Colombia, and in the 

 United States it has been reported from Florida, Texas, and New 

 Mexico. 



Description of the Stages 



Egg. — When fully colored it is dull, reddish brown, the surface 

 divided into minute hexagonal areas which, on all except the lower 

 surface, have shallow depressions at their centers, and which are not 

 found on the eggs of tristis or armigera. On the lower surface, in the 

 central portion of which there is a slightlj' raised area or "button" by 

 which the egg is attached to the surface upon which it is deposited, 

 these depressions are lacking and the surface is smooth. 



Five eggs gave an average length of 1.45 mm., an average width of 

 0.97 mm., and an average height of 0.91 mm. 



First Nymphal Stage. — -General color of head and thorax, and 

 their appendages, dark reddish brown, almost black, with whitish 

 markings. Abdomen yellowish white with two conspicuous, reddish 

 brown dorsal tubercles. After feeding, the abdomen takes on a light 

 green color. Whole surface of insect glistening, with scattered, stiff, 

 black hairs, arising from small black tubercles. Antennie about equal- 

 ling body in length, with second and third joints noticeably flattened. 

 Length of body about 2 rnm.^ 



Second Nymphal Stage. — Resembling first stage. General color 

 of abdomen light grayish green. Dorsal surface of head, thorax, and 

 abdomen, dull, pruinose. Length about 3 mm. 



1 Guerin-M^neville, F. E., in Historia, Fisica, Politica y Natural de la Isla de Cuba, 

 by R. de la Sagra, vol. VII, p. 159, pi. XIII, fig. 9, 1856. 



^ Descriptions of the nymphal stages have been made from living specimens. The 

 lengths given are average ones and were taken soon after the specimens had molted. 



