48 AULAX PAPAVERIS. 



Galls take the form of spindle-shaped or oval swell- 

 ings on the petioles of Hypochseris radicata, some of 

 them reaching a length of 40 mm. and a diameter of 

 7 mm. In colour they do not differ from the stems, 

 the swelling taking place in the pith. Internally they 

 contain numerous oval cells, usually placed nearer the 

 centre than the edges. The surface is smooth, or 

 beset with little warts, and furrowed longitudinally ; 

 but the furrows are, of course, more widely apart, and 

 wider and more irregular than in the unaffected parts 

 of the stem. 



Found in "Wales by Dr. Vice, and also recorded from 

 South Devon (cf. Briggs., Ent., 1875, p. 233). 



Eurytoma cynipsea, Boh., is a parasite. 



Continental distribution : Austria, Italy (cf . Low, 

 Yerh. z.-b. Ges. Wien, 1884, 326). 



3. AULAX PAPAVEBIS. 



PI. VIII, fig. 1, gall. 



Diplolepis papaveris, Perris, Ann. Soc. Ent. Fr., 1839, 98. 



Aulax rhoeadis, Htg., Germs. Zeits., ii, 1846, 195 ; Schenck, 

 Nass. Oyn., 96, 100, and 127 ; Tasch., 

 Hym. Deut., 133; Mayr, Cyn. Gallen, 

 22, Taf. iii, f. 19; Europ. Oyn., 7; 

 Thorns., Opusc, viii, 800 ; Westwood, 

 Gard. Ohron., 1885, p. 152. 

 — minor, Htg., Germs. Zeits., ii, 196 ; Mayr, Eur. Cyn., 7. 



Black ; the legs yellowish-testaceous ; the abdomen brownish or 

 black, the base often castaneous; the antennae dark brown, almost 

 black ; wings hyaline, the nervures fuscous ; areolet distinct. Meso- 

 notum opaque, pubescent, closely and uniformly aciculate ; pleura 

 finely punctured; scutellum finely and closely rugose, sometimes 

 furrowed in the centre ; parapsidal furrows reaching beyond the middle. 

 The cj has the coxse, trochanters, and base of femora more or less 

 blackish ; in the ? also the base of coxse may be infuscated. 



Length If to 2J mm. 



In some examples the furrow on the scutellum is 

 distinct enough, but it is absent in many. 



I should say that A. minor, Htg., is only a var. of 



