194 W. H. ASHMEAD. 



Subfamily Eurytomin^. 



EIJRYTOMA Illiger. 



50. Kurytoiiia gigaiitea Walsh. 



Syn. CiilUmome Duckeri Brodie. 

 Ormyrus elongntus Prov. 



Four specimens of this interesting Eurytomid were identified from 

 specimens sent to me by Mr. Wm. Brodie and reared from a dipter- 

 ous gall Eurosta solldaginis. He informs me it is his CalUniome 

 Duckeri and Ormyrus prolongatus Prov. It varies greatly in size 

 from .12 to .25 of an inch, but is known at once by its " com])ressed 

 abdomen, unusually long and acutely porrect ventral valve and 9- 

 jointed antennas." 



The male, which was unknown to Walsh, has also antennae of 

 distinctly 9-joints, which will at once separate it from all other 

 known Eurytomid males in our fauna, but its abdomen is also com- 

 pressed, very high dorsally and acutely emarginate at tip beneath, 

 giving it a very peculiar shape. 



51. Eiirytoniiis abiiorinicoriiiN Walsh. 



A single specimen of this insect was captured at large here last 

 summer. It is at once known by the abnormally lengthened third 

 antennal joint. 



52. Eurytoina aurieeps Walsh. 



Six specimens of this species were reai'ed last summer from gall 

 Aiulricus rugosus Ashm. It is easily distinguished by the dense, 

 golden pubescence of the face. 



53. Eiirytoma pruiiicola Walsh. 



This species varies greatly in the color of the abdomen ; it has been 

 reared from various galls. 



54. Eurytoiiia diastrophi Walsh. 



This species has been reared from Diastrophus nehulosus O. S., and 

 D. cusGutceformis O. S. It seems to be a very distinct and constant 

 species, although somewhat related to E. prunlcoJa, but the abdomen 

 is proportionally longer and not so broad vertically. 



Dr. Mayr has given the same name to a Euro{)ean species in his 

 "Arten der Chalcidier-Gattung Eurytoma durch Zacht erhalten," 

 that species is also in my collection, but very distinct ; and, as Mr. 

 Walsh has priority, I propose the name Euri/toma Mayri for the 

 European species. 



