1916] Williams — Egg-Parasites of the Apple Tree Tent-Caterpillar 151 



2. Telenomns clisiocampce Ashm., Family Scelionidse. 



One male of this Proctotrypoid parasite emerged on March 30, 

 or only one day later than the Ablerus. Small numbers of males 

 continued to issue till April 13, After this, females began to appear, 

 and both sexes were found in the tubes till May 31, the males re- 

 maining in the majority. Seventy-five males, thirteen females 

 and two or three of undetermined sex issued from this box. In 

 Box No. 2, one male and another, whose sex was not ascertained, 

 issued on June 23. Four were recorded in all. In Box No. 3, one 

 male issued July 1. In Box No. 4 one male and two females 

 issued June 30 to July 3. One male issued in Box No. 5 (cold 

 storage) August 3, or about three weeks after the eggs it contained 

 were removed from the refrigerator and one female August 7. 

 The total number is, therefore, approximately one hundred, or 

 less than 0.1 per cent, of the number of eggs. 



This species is very active, especially the male. The female, 

 which is somewhat more sluggish may be superficially distin- 

 guished from the male by the clubbed antennae. 



3. Tetrastichus sp.. Family Eulophidse. 



A single male of this undetermined species issued on March 31. 

 It lived till April 2. This specimen, together with others of un- 

 known or doubtful species, was sent to Mr. A. A. Girault of the 

 United States National Museum, but its condition did not permit 

 him to do more than determine the genus. It seems likely that 

 the species is undescribed. 



4. Odencyrtus clisiocampcB Ashm., Family Encyrtidae. 



One female issued in Box No. 1 on April 10. It was followed at 

 intervals by others till April 21, and then did not appear again till 

 May 9, The last one issued June 2. In all ten males, ten females, 

 and three of undetermined sex issued from this box. None came 

 from Box No. 2, and only two (June 30) from Box No. 3. From 

 Box No. 4, one male and three females issued, and from Box No. 5 

 (cold storage) one female on August 7. This makes thirty in all, 

 less than half as many as the Ablerus, to which it comes next in 

 point of numbers. 



