232 M. W. R. de V. GRAHAM 



Biology. I have seen British material reared from many different Agromyzid 

 hosts on a variety of host-plants, chiefly Scrophulariaceae. At least two genera- 

 tions appear to occur during the year and the species may be captured in the field 

 from April until November. In Britain maculata has been reared from the following 

 hosts : Phytomyza ranunculi (Schr.) on Ranunculus acris L. ; Ph. petoi Her. on 

 Mentha sp. ; Ph. symphyti Hend. on Myosotis sp. ; Ph. fallaciosa Br. ; Napomyza 

 glechomae (Kalt.) on Glechoma hederacea L. ; Phytobia (Dizygomyza) labiatarum 

 Hend. on Stachys palustris L. and Lamium album L. (specimens reared by G. C. D. 

 Griffiths and K. A. Spencer). A. H. Hamm reared specimens from Phytomyza ? milii 

 Kalt. on grass and from Agromyza ? nigripes Mg. on Phragmites communis Trin. ; 

 these records need confirmation. In Sweden, Jansson (1952 : 6, 7) records several 

 hosts for " Miscogaster gracilipes Th. " ; these need to be checked in view of the fact 

 that gracilipes is a species-complex. Imagines appear in Britain chiefly May-July 

 and Sept.-Oct. 



Note. Stictomischus phytomyzae Ghesquiere (1949 : 566-568, figs. 1, 2) appears 

 from the description and figures to be a Miscogaster, perhaps near hortensis (Walker) 

 or rufipes (Walker). The mandibles are described as " trident^es ", but as the type 

 specimens were mounted on microscope slides, the innermost tooth might have been 

 concealed. Syntypes (not seen), 2 $, France, Seine, Bois de Clamart, 20.x. 1897, 

 parasites emerged 20.iv.1898 (P. Marchal), in Laboratoire d'Entomologie coloniale, 

 Museum Nationale d'Histoire Naturelle, Paris (mounted on a slide). The species 

 was originally recorded (as S. phytomyzae Ashmead MS.) by Marchal (1900 : 106) 

 as having been reared at Fontenay-aux-Roses from larvae of Phytomyza xylostei 

 [Kalt.] on Lonicera xylostea. 



XESTOMNASTER Delucchi 



Xestomnaster Delucchi, 1955 : 7, 30. Type-species : Lamprotatus mirificus Delucchi, 1953, by 



original designation. 

 Xestomnaster Delucchi ; Peck et al., 1964 : 39. 



Key to European Species 

 (Males and Females) 



1 Fore wing with stigma small, separated by rather more than twice its height from 

 the lower edge of the postmarginal vein ; marginal vein i-8 to 1-85 times as long 

 as the stigmal vein ....... mazares (Walker) (p. 233) 



- Fore wing with stigma larger, separated by somewhat less than twice its height from 

 the lower edge of the postmarginal vein ; marginal vein 1-27 to 1-4 times as long 

 as the stigmal vein ...... chrysochlorus (Walker) (p. 232) 



Xestomnaster chrysochlorus (Walker) comb. n. 



Lamprotatus chrysochlorus (Haliday MS.) Walker, 1846 : 30, 90, <$ $ [nee Miscogaster chrysochlora 



Walker, 1833 : 461]. 

 Lamprotatus mirificus Delucchi, 1953a : 205, o* ?. syn. n. 

 Lamprotatus parkeri Delucchi, 1953a : 206-207, 9. s y n - n - 

 Lamprotatus smaragdus Delucchi, 1953a : 209, $, syn. n. 



