— 254 -^ 



12. Abdomen short, round-ovate, dark olive-green; antennae 



strongly incrassated. Scape below, knees, tibiae and tarsi 



brown-yellow thrichops T h о m s. 



Abdomen longer 13 



13. Tibiae fuscous in the middle 14 



Tibiae brownish-yellow. Antennae very long, slender. Abdo- 

 men IVg times as long as head and thorax united .... 



legion arias G i r a u d. 



14. Olive-green. Funicle joints as long as wide 



compressiventris Thorns. 



Bluish; funicle joints longer than wide 



migrator Förster. 

 (Syn.: penetrans Forst.). 



15. Hind tibiae pallid, with slight fuscous ring below the 



base. Veins pale-yellow. Body bluish. Pedicel -/н the 

 length of the first funicle joint . . . mediamis Ratz. 

 Hind tibiae either unicolorous, or fuscous in the middle . 16 



16. Hind tibiae unicolorous 17 



Hind tibiae fuscous in the middle 19 



17. Hind tibiae brown-yellow. Stigmal vein about Vs the length 



of the' marginal vein. Antennae slender. Pedicel IV2 limes 

 longer than the first funicle joint. Bluish . incertus Ratz. 

 Hind tibiae straw-yellow or brownish-yellow; in the last case 

 the club of antennae with strong apical bristle 18 



18. Green; tibiae and tarsi straw-yellow. Length 1,з mm. . . • 



sokolovskii К u r d j u m о v. 



Blue; tibiae brownish. Club of antennae with strong apical 



bristle. Length 4 mm setifer- Thorns. 



19. Dark-green. Length 1,2 mm. Pedicel a little shorter than 



the first funicle joint. Antennae not very long 



cassidarum Ratz. 

 Blue or green. Length 2—3 mm. Antennae long .... 



atrocoeruleus Thorns. 



Tetrastichus violaceus, sp. n. 



$. Length 1,7 mm. Length of the wing 1,4 mm. Antennae 

 slender; scape long, slender, not reaching the front ocellus. Pedicel 

 about 2^/2 times longer than wide, shorter than the first funicle joint, 

 which is longer than the next one. 3^ funicle joint shorter than the 2^, a 

 little more than twice as long, as thick. Club of antennae a little shor- 

 ter th^n two preceding funicle joints united, more thick than the funicle. 

 Median line on mesonotum distinct; lines on the scutellum parallel. 



Revue Russe d'Entom. XIII. 1913. № 2. 



