Vol. Xxix] ENTOMOLOGICAL NEWS. IOJ 



10. PVescutum broad, the posterior width hall or nearly half as great 



as the anterior width ; mesepisternum and sternum yellow, 



erythrogastra Ashmead. 



Frescutum longer and more narrowed posteriorly, the posterior 

 width distinctly less than half the anterior width; mesosternum 

 black ; mesepisternnm black with a large pale spot, 



abdominalis Say. 



11. First three tergites (not propodeum) and also the following highly 



polished and for the most part without sculpture ; prescutum 

 coarsely reticulate, with a tendency to form longitudinally 



raised lines hicoriae Rohwer. 



First three tergites and the following more or less granular; 

 prescutum finely reticulate with a tendency to form trans- 

 versely raised lines maculata Say. 



Xiphydria abdominalis Say. 



Xiphydria abdominalis Say, Keating's Xarr. Exped. appendix vol. 2, 



1824, p. 311; Leconte, Writings of Say, vol. 2, 1859, p. 208. 

 Xiphydria attcnuatiis Norton, Proc. Ent. Soc. Phil. vol. I, 1862, p. 



144- 



Xiphydria rufirentris Cresson, Tran. Amer. Ent. Soc. vol. 8, 1880, p. 



34- 



The type of abdominalis Say is lost, but a female coming 

 from Harrisburg, Pennsylvania, has been chosen neotype. The 

 types of attcnuatiis Norton and rufirentris Cresson are in the 

 Academy of Natural Sciences of Philadelphia. 



In describing this species Say states that the wings are ful- 

 iginous. The type of rufirentris Cresson has nearly hyaline 

 wings, but a reared series shows that the color of the wings 

 varies somewhat and some of the specimens have dark enough 

 wings to agree with Say's definition of fuliginous. The author 

 does not doubt that this is Say's species. The rearings also 

 definitely associate attcnuata Norton as the male. 



Distribution: Pennsylvania (Say, Norton); New York 

 (Cresson) ; New Jersey (MacGillivray) ; Harrisburg, Pennsyl- 

 vania (Champlain and Kirk) ; Plummer's Island, Maryland 

 (H. S. Barber). 



Host-plant: Tilia aincricana Linnaeus. 



Parasites: Pammegischia orclctii Bradley and Afcyarhyssa 

 !u 1 111 id a (Say). 



Patton (Can. F.nt. vol. ir. iKj*), p. 14) records attcnuatus 



