A. K. (^A.MKRON o1 



lohi sio iiucli ill! j^odiington, odcr im solir Imino.scii Boden (dies isfc 

 daiui die Anthoniyia vunlvularis lioiid)." JititcM' (p. .'Ji;3), lie says: 

 " Falls aber die eigenen Bliitter der Riibe uiizulauglich wiiieii, linden 

 sich wohl in der Nahe andere faulende Blatter, welchc ihr eben- 

 falls zusagen. Die Fliegenmade bleibt in der einen, oder der anderen 

 Weise doch immer am Leben und kann sich spiiter in grosserer Anzahl 

 vermehren," 



G. Description of Ihe Leaf-Miner, regomyia liyoscyanii. 

 The adult (PI. II, figs. 19, 20, 21, 22). 



The following account has been borrowed and translated from Stein's 

 paper on the genus Pegomyia, " Die mir bekannten europaischen 

 Pegomyia-Arten," a very exhaustive and systematically arranged piece 

 of work. The author points out that although enjoying a fairly wide 

 distribution, the species cannot be designated a common one. The 

 numerous synonyms applied to it are accounted for by the fact that the 

 colour of the adult varies according to the life-history of the maggot, 

 but in spite of this variation the plastic characters are so constant as 

 to admit of the species being recognised with a fair amount of certainty. 

 Stein distinguishes two varieties, hi/oscyami Panz., the true species, 

 light-coloured, and the darker form, befae Curt. 



" The eyes, not very large, are almost equally broad above and 

 below and are separated by a distinct stripe and the orbits. Frons pro- 

 jecting, cheeks small carinate, jowls rather broad, posterior aspect of 

 the head convex below, bedusted all over silver-grey, on the cheeks 

 close to the basal segment of the antennae a quite distinct, blackish, 

 somewhat iridescent spot. Vertex as well as the median stripe generally 

 blackish-red, also in some cases of a lighter shade, according to the age 

 of the individual. Antennae incurving just below the middle of the 

 eyes, shorter than the face, black, second segment more or less red, 

 bristle naked, rather thickened at the base, palps thread-like, yellow, 

 the terminal third segment black. Thorax, scutellum and abdomen 

 in the lighter coloured form varying from pale to yellowish-grey, the 

 former without perceptible striping ; acrostichal bristles somewhat more 

 closely set than the dorso-central, pre-alar small. The abdomen is 

 sub-cylindrical, sometimes somewhat depressed and viewed obliquely 

 from behind a small, pale brown median stripe is recognisable ; the 

 rather swollen hypopygium as well as the ventral lamellae (belly) is 



4—^ 



