- 251 — 



32. Abdomen strongly compressed from the sides. Propodeum 



short, almost smooth evonymellae В che. 



(Syn.: crassinervis Thorns.). 



Abdomen not compressed from the sides. Propodeum long, 



with slight punctures aciiminatus Ratz. 



33. Femora and tibiae at apex and base brownish-yellow. Ovi- 



positor somewhat exserted. Body dark-green. Length 



2.7 — 3.3 mm strobilaenae Ratz. 



Femora and tibiae at apex and base yellow or pale-yellow. 

 Smaller. Ovipositor usually hidden 34 



34. Bluish; femora and tibiae marked with pale-yellow .... 



pospjelovi К u r d j u m о V. 

 Green, with copper tint. Femora and tibiae marked with 

 yellow 35 



35. Abdomen strongly compressed from the sides 



tibialis, nom. nov. 

 {vinulae T h о m s., пес viniilae Ratz.!). 

 Abdomen ovate, not much compressed from the sides. Simi- 

 lar to preceding, but smaller atmulatus Forst. 



(Syn.: seticollis T h о m ?.). 



Geniocerus populi, sp. n. 



$ . Length 2,75 — 3 mm. Length of the anterior wing 2,2 mm. 

 Antennae slender, scape reaching the front ocellus, funicle longer 

 than the face. Pedicel shorter than l^t funicle joint, which is longer 

 than the 2<^ . Length of the 1^' funicle joint equal to 2V2 of its width. 

 3*^ funicle joint shorter than the 2^ and about 2V2 times as long as 

 wide. Club shorter than two preceding funicle joints combined. Median 

 line on mesonotum distinct. Lines on the scutellum almost united at 

 base with parapsidal furrows; their distance at the base of scutel- 

 lum surpasses their distance at the apex. Stigmal vein of anterior wing 

 nearly equal to ^'з of the marginal vein. 



Propodeum very short, smooth, with very short median carina; 

 lateral carinae wanted. Abdomen long, ovate-conical, not strongly 

 compressed from the sides, a little less than twice longer than the head 

 and thorax united. 



Dark green, almost black, with copper tint. Eyes cherry-brown; 

 ocelli ruby-red. Scape of antennae, pedicel at apex, mouth, tegulae, 

 veins of the wing yellow. Legs yellow, with exception of coxae, basal 

 part of femora and ultimate tarsal joints. 



d unknown. 



Habitat: Poltava. Secondary parasite upon Pemphigus ovato- 

 oblongus К e s s 1., gall-making aphid on Populus pyramidalis. 



PyccK. Эигом. Обозр. xni. 1913. № 2. 



