I40 



NEW YORK STATE Ml'SEUM 



abundant of the hyperparasites reared by Dr Howard at Washington was 

 Dibrachys boucheanus Ratz. [fig 2 1], it being present in such force 

 as to almost kill off Pimpla inquisitor the latter part of 1 896. This 

 species was also reared in large numbers by Dr Lintner in 1883. It is in 

 turn, as demonstrated by Dr Howard, preyed upon by Asecodes a 1 b i- 

 tarsis Ashm. The following is a list of the hyperparasites of H e m e- 

 rocampa leucostigma, as given by Dr Howard: H em i teles 

 t o w n s e n d i Ashm.. B a t h )■ t h r i x m e t e o r i H ow., B a t h y t h r i x 

 pimplae How., Adistola americana How., Otacustes peri- 

 lit i Ashm., H a b r o c y t u s t h y r i d o p t e r i g i s Ashm., P e z o m a c h u s 

 i n s o 1 i t u s How., .S p i 1 o c h a 1 c i s d e b i 1 i s Say, E u p e 1 m u s 1 i m- 

 neriae How., Dibrachys boucheanus Ratz., Elachistus 

 cacoeciae How., El asm us at rat us How., S y n t o mo s p h y r u m 

 esurus Riley and Asecodes albitarsis Ashm. 



A number of scavengers were reared by Dr Howard from the pupae 

 or masses of cocoons. The list is as follows: Helicobia helicis 

 Towns. Sarcophaga species, Phora nigriceps Loew, Phora 

 inci sural is Loew, Phora fasciata Fall., Phora agarici Lintn., 

 L i m o s i n a species, H o m a 1 o m y i a s c a 1 a r i s Fabr., G a u r a x 

 a n c h o r a Loew, X e o g 1 a p h \- r o p t e r a b i v i 1 1 a t a Say and D i p 1 o- 

 s i s species. 



In addition to these, a Eulophid was reared in some numbers from the 

 cocoons of Hemerocampa by Dr Lintner in 1883 and 1884. A dermestid 

 beetle, Pcrimegatoma variegatum Horn, has been recorded in 

 Insect Life as a very effective destroyer of the eggs of Hemerocampa 

 in California. The wheel bug, Prionidus cristatus Linn., is said to 

 prey on the larvae in the Southern States, and in 1898 the writer observed 

 a mite, a species of Rhyncholophus," eating the contents of many eggs. 



Remedies. The simplest and most satisfactory remedy is found in 

 gathering and destroying the ^^^ masses. Prizes were offered in Roches- 

 ter N. Y., in 1894, to school children gathering the largest number of egg 



" Determined through the courtesy of Dr \.. O. Howard. 



