No. 2317. 



FIVE TRIBES OF ICENEUMONINAE—ROHWER. 



437 



by a longitudinal carina due to the coalescing of the median carinae; 

 first tergite in female a little more than t\vice as long as apical width, 

 with complete median carinae in both sexes ; second tergite in female 

 distinctl}^ wider than long; base of third tergite of male with 

 a triangular depressed area laterally; tergites coriaceous or (in 

 female) mth the third and fourth transversely aciculate; nervulus 

 slightly postf ureal; nervellus slightly reclivous, broken at the mid- 

 dle; ovipositor as long as or shorter than the abdomen. Black, with 



Fig. 4.— Front view of 

 head of xorides al- 



BOPICTUS (CRESSON.) 



Fig. 5.— Propodeum and basal abdominal segments of Xorides albo 



PICTUS (CRESSON). 



yellow markings; posterior orbit with yellow spot; antenna of female 

 with an annulus; wings hyaline. 



XORIDES ALBOPICTUS (Cresson). . 



Xylonomus albopictus Cresson, Trans. Amer. Ent. Soc, vol. 3, 1870, p. 168. 

 Xorides cayiadensisTiiOv A^cnsR, Nat. Can., vol. 7, 1875, p. 248. 



Type of albopictus. — Cat. No. 1518, Acad. Nat. Sci. Phila. The type 

 of canadensis is lost unless it is one of the specimens under name 

 Xylonomus albopictus, it is probable that Provancher recognized 

 that canadensis was synony- 

 mous with albopictus as he 

 omits it from from the "Fau- 

 na." Synonymy made by 

 study of description and be- 

 cause of Harrington's state- 

 ment.^ 



This is the commonest 

 American species and is easily 

 recognized by its markings 

 and the characters used in 

 the table. The yellow line on the dorsal lateral part of the prono- 

 tum is another character by which to separate it from its ally, 

 calidus. 



Canada; New York (Cresson); Harrisburg (and vicinity) (Fisher, 

 Kirk, Champlain), Philadelphia (G. M. Greene); Pennsylvania; West 

 Virginia (Hopkins) ;!Tryon, North Carolina (Fiske); Deweyville, 

 Texas (Fiske); Indiana; Chicago, Illinois (Kahl); Michigan. 



Fig. 6.— Apical abdominal segments of Xorides 

 ALBOPICTUS (Cresson.) 



iQan. Ent., 1893, p. 133. 



