ICHNEUMON-FLIES, PART 21 EPHIALTINAE 137 



Described from 3 c? , 39 from Germany and Poland, including a male 

 reared from Saperda populnea. 



9. Dolichomitus irritator (Fabricius), new combination 



Figures 333,h; 351 



Ichneumon irritator Fabricius, 1775, Systema entomologiae, . . ., p. 336; 9 . 

 Type: 9, America (London). 



Male: Front wing 6.0 to 10.5 mm. long; face rather narrow, with 

 very fine, moderately dense punctures; prepectal carina ending near 

 level of lower 0.12 of hind margin of pronotum; propodeum partly 

 weakly rugulose, with large, weak, scattered punctures; median longi- 

 tudinal carinae of propodeum indistinct but indicated by rugulosity 

 and weak elevations; front coxa prolonged below, the prolongation 

 concave anteromesally; first trochanter of front leg with a median 

 ventral tubercle; middle coxa externally with a basal, median, and 

 apical tubercle, excised between the tubercles; concave margin of 

 front coxa, underside of trochanters of front leg, and outer side of 

 middle coxa with a very fine, mat sculpture; first tergite about 1.7 

 as long as wide; second tergite about 1.5 as long as wide; subgenital 

 plate as in figure 333, h; genitalia as in figure 351. 



Black. Clypeus and mandible tinged with ferruginous; palpi, 

 tegula, and front and middle legs except femur, white, their tibiae and 

 tarsi often stained with pale fulvous; front and middle femora fulvous, 

 white apically in front, the middle femur the more extensively white; 

 extreme base of front and middle coxae dark brown; hind coxa 

 blackish; hind first trochanter dark brown; hind second trochanter 

 brownish fulvous; hind femur fulvous, its extreme apex stramineous; 

 hind tibia and tarsus fulvous to reddish brown, the basal 0.15 of the 

 tibia paler; second to fifth or sixth tergites red, with an apicolateral 

 transverse black spot, the spots of each side joined on the more distal 

 segments to make an apical black band. In smaller males the ab- 

 domen ma}^ be entirely black. 



Female: Front wing 8.7 to 14.5 mm. long; face moderately narrow, 

 rather evenly covered with moderately small, sharp punctures whose 

 interspaces are about twice their diameter; prepectal carina ending 

 dorsally near level of lower 0.2 of hind margin of pronotum; propodeum 

 transversely rugulose medially, its median longitudinal carinae irregu- 

 larly rugulose but distinct, extending about 0.65 the length of pro- 

 podeum; punctures of propodeum moderately coarse and close, the 

 sublateral ones subadjacent or crowded; hind femur about 4.8 as long 

 as deep, its front face with rather smah, moderately sharp punctures 

 that are separated by about 2.5 their diameter; bristlelike hairs on 

 middle tibia fine and weak; first tergite about 1.5 as long as wide; 



526527—60 10 



