Schizonotus Ratzeburg 

 Schizonotus Ratzeburg 

 Schizonotus Ratzeburg 

 Schizonotus Ratzeburg 



M. W. R. de V. GRAHAM 



Nikol'skaya, 1952 : 227. 

 Graham, 19566 : 260. 

 Boucek, 1956a : 395-398. 

 Peck et al., 1964 : 48. 



For a revision of the European species, see Boucek (1958a). 



Key to European Species 



(Females) 



1 Head in frontal view with clypeus projecting somewhat below the level of the ventral 

 ends of the genae. Antennal funicle yellowish beneath, darker above, clava 

 fuscous to blackish ; combined length of the two anelli greater than the breadth of 

 the second anellus ; second funicular segment subquadrate 



sieboldi Ratzeburg (p. 819) 



— Head in frontal view with clypeus not projecting below the level of the ventral ends 



of the genae. Antennal flagellum uniformly fuscous to black ; combined length 

 of the two anelli approximately equal to the breadth of the second anellus ; 

 second funicular segment 1-2-1-5 times as broad as long . lotus (Walker) (p. 818) 



(Males) 



1 Flagellum yellowish with the clava blackish ; clava often not longer than the 

 combined length of funicular segments 5 and 6 ; first funicular segment sub- 

 quadrate, distal segments broader than long . . . sieboldi Ratzeburg (p. 819) 



- Flagellum uniformly testaceous to brown, the clava not distinctly darker than the 



funicle ; clava longer than the combined length of funicular segments 5 and 6 ; 

 all funicular segments slightly broader than long, the first segment usually smaller 

 than the second and sometimes almost anelliform . . latus (Walker) (p. 818) 



Schizonotus latus (Walker) 

 (Text-fig. 293) 



Pteromalus latus Walker, 1833 : 481, <j>. 



? Pteromalus latus Walker ; Haliday, 1841-1842 : v, pi. G, fig. 2, ? $. 



Arthrolytus incongruens Masi, 1907 : 252-254, q* $. 



Schizonotus latus (Walker) Graham, 19566 : 260. 



Schizonotus latus (Walker) ; Boucek, 1958a : 395-397, fig. 2, a* 9- 



Type material. Pteromalus latus Walker. Lectotype female designated by 

 Graham (19566 : 260). 



Arthrolytus incongruens Masi. Syntypes (not seen), Italy, Napes, Cancello, reared 

 from pupae of Plagiodera versicolor, in Museo Civico di Storia Naturale, Genoa. The 

 species was placed in synonymy with latus (Walker) by Graham (19566: 260). 



Schizonotus sieboldi Ratzeburg of authors was synonymized with latus (Walker) 

 by Graham (19566 : 260) but Boucek has since shown that the true sieboldi of 

 Ratzeburg is a valid species (see below) . 



Widely distributed in Europe ; probably also N. Africa, but the records for the 

 latter need confirming. 



Biology. Chiefly a parasite of Plagiodera versicolor Laich.). (Col., Chrysomel- 

 idae.) Imagines chiefly Aug.-Sept. (some females taken in April). 



