446 



PROCEEDINGS OP THE NATIOXAL MUSEUM. 



VOL. 57. 



There is considerable variation in size of the body (from 9 to 20 mm.), 

 while the length of the ovipositor varies but little (6 to 8 mm. beyond 

 the tip of the abdomen). In the type the body is 9.5 mm. long and 

 the ovi])ositor extends 8 mm. beA'ond the end of the abdomen; yet in 

 other specimens the body is 20 mm. long and the ovipositor extends 

 8 mm. beyond the end of the abdomen. 



Ottawa, Canada (Harrington); Detroit, Michigan (Hopkins); Har- 

 risburg (and vicinity) (Fisher and Kirk), Overbrook (Geo. M. Greene) 



Fig. 8.— J'ront view of 



HEAD OF DeUTEROXOR- 

 IDES CARYAE (HARRING- 

 TON). 



Fig. 9. 



-Propodeum and basal abdominal segments of Deuter- 

 oxorides caryae (harrington). 



Pennsylvania; Ballston, Virginia (Snyder); Pink Beds, North Caro- 

 lina (Fiske). 



Host. — Saperda discovJea. Harrington* records as a probable host 

 of species Dorchaschema nigrum, but numerous rearings from the 

 Branch of Forest Insects, Bureau of Entomology, indicate that 

 Saperda discoidea is the only host. 



DEUTEROXORIDES VTTTIFRONS (Cresson). 



Xorides vitti/rons Cresson, Can. Ent., vol. 1, 1868, p. 37. 

 Type. — Acad. Nat. Sci. Phila. No. 1514. Notes from homotype and 



specimens from localities listed 

 below. 



Harrington' would separate this 

 species off by its relatively longer 

 ovipositor but this character is 

 extremely variable and can not be 

 relied upon. The color characters 

 offered in the above table are the 

 only characters which have given 

 satisfaction. 



London (Cresson), Ottawa (Harrington), Canada; New York; Over- 

 brook, Pennsj^lvania (Geo. M. Greene) ; Tryon, North Carolina (Fiske). 

 Hosts: Harrington records this species "upon old maples infested 

 with Dicerca divaricata, XipJiydria alhifrons, Tremex columha, etc." 

 and Dalla Torre records the insects in the "old maples" as hosts of 

 vittifrons. The only authentic host record available is Graphisurus 

 fasdatus based on rearings of the Branch of Forest Insects, Bureau 

 of Entomology. 



1 Can. Ent., vol. 23, 1S91, p. 133. 



Fig. 10.— Apical abdominal segments of Dec- 

 teroxorides cartae (harrington). 



