248 



tlie bark of Oak, as shown by the records of the Division, published 

 in Insect Life (vol. in, p. 461). 



BEACONID^. 



Br aeon simplex Cress. The cocoons of this species were of quite 

 common occurrence in the nests constructed by, and characteristic of, 

 Bhagium lineatum under the bark of white and pitch pine trees, within 

 which the beetles undergo their transformations. Parasites reared at 

 Ithaca, N. Y., in confinement under nearly natural conditions, issued 

 from May 19 to June 11, and specimens were captured flying about 

 pine logs at a later date. This species has been also reared in the 

 Division from an unbred Oerambycid under oak bark, as recorded in 

 Insect Life, vol. ii, p. 348, and by Mr. A. D. Hopkins from wood of 

 Beech and Spruce infested by Cerambycidse and Buprestidae (1. c, vol. 

 IV, p. 256). 



Bracon eurygaster Brulle was bred from small branches of Quince 

 that had been amputated by Elaphidion villosum Fab. the only other 

 species reared from this wood. Also reared under similar conditions 

 by Mr. Hopkins, from elm wood infested by an unknown Longicorn 

 (1. c, vol. IV, p. 257). South Woodstock, Conn. 



Bracon erythrog aster Brulle was reared from hickory wood infested 

 almost exclusively with Cyllene pieta. Specimens were also taken 

 under the bark of Oak where they were probably parasitic on some 

 other common Longicorn. Ithaca, ^. Y. 



Boryctes radiatus Cr. was bred from flattened cocoons similar to those 

 of Bracon found under the bark of newly felled hickory wood infested 

 with Cyllene picta, on which species it is doubtless parasitic. Imagos 

 emerged in June. Specimens were also taken in the field. May 26. 

 Ithaca, K. Y. 



Cwnophanes dinoderi Ashm. MS. bred out from some pieces of dead 

 oak wood together with the Ptinid, Binoderus punctatus, the only other 

 species found. The beetles were extremely abundant; the parasites 

 were rare. Date of emergence not noted. Flatbush, L. I. 



Ccenophanes utilis Cr. was reared from larvse of Liopus cinereus Lee, 

 found boring the twigs of Locust {Eohinia pseudacacia). All stages 

 were taken April 21, one adult already dead. The first pupa was seen 

 May 8; this x)repared to transform May 22 and the adult insect was 

 found May 25. One larva transformed to pupa as late as June 10. 

 Many of these Cerambycid larvse were parasitized. Ithaca, N. Y. 



Helcon dentipes Brulle was bred from chestnut wood infested by a 

 small Longicorn, supposed to have been Oallidium wreum, also from 

 wood from which were reared Ehopalophora longipes a^d Curius denta- 

 tus. These Longicorns belong to the same sub-family, the Ceramhy- 

 cince and the Hymenopteron might be i^arasitic on all three species. 



CenocwUus rnhrieeps Prov. is an external parasite of Liopus cinereus. 

 It was reared from the latter found breeding in the twigs of Locust 



