142 PIMPLINE ICHNEUMONIDAE 



Carina on anterior haK of mesopleura becoming indistinct half way upon the 

 pleura, strongly striato-punctate, the superior half, highly polished. Scutellum 

 flattened, transversely striate. ^Sletanotum with a sUght median longitudinal 

 impression, deUcately, transversely sculptured, laterally shining, rugulose; me- 

 tapleura pohshed, sparsely punctured, rugulose on the superior margin. Wings 

 hyaline, with a brown cast, nervures and stigma dark brown, second recurrent 

 nervure interstitial with the second transverse cubitus. Dorsal abdominal 

 segments finely transversely sculptured, having a satiny luster. Ovipositor 

 about 29 mm. in length. Black, a line from malar space to apex of the eye, 

 a band on the superior border of the propleurae, a spot below on the tubercle, 

 a spot on the anterior coxae, greater part of the tegulae, a large spot beneath, 

 a small spot on the mesopleurae, a spot on the medial coxae, a short line to 

 the sides and apex of first, second, third, fourth, fifth and sixth, and a lateral 

 line on the seventh dorsal segments, white. Greater part of four anterior 

 legs (excluding coxae) ochraceous. Apex of first, all of second trochanters and 

 the femora of posterior legs ferruginous; the tibiae and tarsi dark brown. 

 Described from one female specimen "closely related to R. persuasoria but 

 distinguished by the difference in sculpture, very distinct in coloration." 



As the writer has never seen the type of this species, the original 

 description by Viereck is here given. 



Rhyssa persuasoria (Linnaeus) 



Ichneumon persuasoria Linnaeus, Syst. Nat., Ed. x, 1758, p. 256, n. 67. 

 Cryptocentrum lineolatum Kirby, Fauna Bor. Amer., iv, 1837, p. 260. 

 Rhyssa albomaculata Cresson, Proc. Ent. Soc. Phila., iii, 1864, p. 318. 

 Rhyssa (Pararhyssa) albimaculata Walsh, Trans. Acad. St. Louis, iii, 1873, 



p. 109. 

 Cryptocentrum lineolatum Kirby, Can. Ent., ix, 1877, p. 150. 

 Epirhyssa crevieri Provancher, Nat. Canad., xii, 1880, p. 17. 

 Rhyssa persuasoria Riley, Insect Life, i, 1888-89, p. 169. 

 Rhyssa albomaculata Hopkins, Bull. 32, West Va. Exp. Sta., 1893, p. 217. 

 Rhyssa persuasoria Morley, The Entomologist, xhi, 1909, p. 133, note. 

 Rhyssa persuasoria Morley, The Entomologist, xliii, 1910, p. 243. 

 .^ Rhyssa alaskensis Ashmead, Harr. Alaska Exp., ix, 1910, p. 205. 



Type. — Location unknown. Type of Cryptocentrum lineo- 

 latum in British Museum. 



The female of this species is from about half an inch to nearly an inch in 

 length. Its color markings are also very variable. The head is dark brown 

 to black. In most instances the orbits of the compound eyes are white, 

 rarely interrupted at the vertex, and extending downward as far as the clypeus 

 on each side of the eye. In some specimens there is a white band just above 

 the clypeus connecting the lower ends of the bands of the facial orbits, in 

 others the lower part of the face below the antennae and above the clypeus 

 is white. The clypeus may be pointed or vary toward truncate. Below the 

 antennae the face may be raised centrally or entirely, and its surface may be 



