REPORT OF THE ENTOMOLOGIST. 531 



On Meieorus hyphantrice: 



1. Hemiteles sp. (= 1 on Apanteles). 



2. Spilochalcis sp. 



3. Hemiteles utilis Nort. 



4. Eupelmus sp. (= 3 on Apanteles). 



5. Hemiteles sp. 



6. Pteromahis sp. (= 6 on Apanteles). 



7. Pteromalus sp. (= 7 on Apanteles). 

 Limneria pallipes Prov. : 



1. Eupelmus sp. (= 3 on Apanteles). 



2. Tetrastichas sp. 



3. Pteromalus sp. (= 6 on Apanteles). 



4. Pteromalus sp. (=7 on Apanteles). 



5. Elasmus sp. (= 2 on Apanteles). 



The Telenomus Egg-parasite. — A single egg of iT. cunea is a 

 very small affair, yet it is large enough to be a world for this little 

 parasite, which undergoes all its transformations within it, and 

 finds there all the food and lodgment required for the short period 

 of its life. In several instances batches of eggs of this moth were 

 parasitized, and instead of producing young caterpillars they brought 

 forth the tiny insects of this species. The batches of parasitized 

 eggs were found July 27 upon the leaves of Sunflower. Judg- 

 ing from this date, it was the second brood of moths which had de- 

 posited them. There can be no doubt, however, that eggs produced 

 by moths emerging from their cocoons in early spring had been para- 

 sitized as well. The female Telenomus was also observed August 

 2, busily engaged in forcing its ovipositor into the eggs and ovipos- 

 iting therein. The female insect is so very intent upon its work that 

 it is not easily disturbed, and one can pluck a leaf and apply a lens 

 without scaring it away. The eggs soon hatch inside the large egg 

 of the moth, and the larvse produced soon consume the contents. 

 This egg-parasite is a very useful friend, nipping the evil in the bud, 

 so to speak. 



This parasite is new, and may be characterized as follows : 



Telenomus bifidl'S n. sp. i $ .—Average length, 0.75'""'; average expanse, 1.7™™. 

 Color of body, black throughout. Head three times as broad as long when seen from 

 above; face, especially in the middle, lustrous and vtdthout sculpture; vertex polished 

 and without a carina behind lateral ocelli; antennae black, except bulla, which is 

 honey-yellow, ll-jointed, joints 2 and 3 subequal in length. Thorax: Mesonotum 

 very deUcately punctulate and furnished with a moderately dense, fine, whitish 

 pile; no parapsidal sutiures; legs yellow, except coxae, femora, and last joints of all 

 tarsi, which are black or blackish; tibial spur of front legs bifid when seen under a 

 high power, and corresponding first tarsal joint furnished with a fine and strong 

 comb of bristles; fore wings with 11 costal bristles and with 3 cells visible in stigmal 

 club. Abdomen with the second segment striate only at base. 



Described from 5 9,2^, bred July 27, 1886, from eggs of Hyphantria cunea col- 

 lected in the District of Columbia. 



This species belongs nearest to T. phalcenarum Nees, of Europe, 

 which has been bred from the eggs of Porthesia clirysorrhea by 

 Wachtl, from eggs of Panolis piniperda by Nordlinger, and from 

 eggs of an unknown Noctuid on the leaves oi^sculus hippocastanum 

 by Mayr. (See Mayr, " Ueber die Schlupfivespengattung Teleno- 

 mus'' Verb. d. k.-k. zool. Ges., Wien, 1879, p. 709.) 



The Meteorus Parasite of the Web-worm (Plate X, fig. 4.)— 

 This parasite has performed very good service during the caterpillar 

 plague, and has done much to check anjr further increase of the Web- 



