214 BRITISH GALLS 



Diptera Flowers deformed. See No. 589. 



CONTARINIA CRACCAE Kieffer 593 

 Connold, Veg. Galls, pi. 122 ; Plant Galls, fig. 302, 

 attributed therein to Contarinia loti De Geer. Houard, 

 No. 3693. 



„ Margins of the leaflets rolled back, swollen, forming a 



hard pod. Sometimes many leaves are attacked. July 

 to October. Larvae gregarious, white. M. G. Imago, 

 spring, II. 



Perrisia viciae Kieffer 594 

 Trail, Scot. Nat., II., i'873, P- 78 ; Trans. N. H. Soc. 

 Aberdeen, 1878, p. 59. 



Connold, Plant Galls, fig. 301, attributed therein to 

 Contarinia loti De Geer. Houard, No. 3696. 



1) Leaflets with revolute margins which meet to form a 



pod ; the midrib, which is often much swollen, forms the 

 keel of the pod. Larvae gregarious, usually five to seven 

 in a leaflet, reddish. M. £. 



Perrisia lathyricola Rubs. 595 

 Syn. Cecidomyia lathyri Frfld. 



Connold, Veg. Galls, pi. 80 ; figs. 237, 238. Houard, 

 No. 3771. 



Lathyrus montanus Bemh. 107. Tuberous Bitter 

 Vetch. 

 Hymenop- Woody swelling on the rhizome, 10 mm. long, and 

 tera 12 to 14 mm. in maximum diameter. 



AULAX sp. S96 

 Cameron, 1893, p. 205, pi. ix. 4. Houard, No. 3780. 



EUFHOBBIACEAE 



Diptera Euphorbia Esula Linn. Leafy-branched Spurge. 



Terminal leaves deformed, much enlarged, forming a lax 

 globose gall containing numerous orange-red larvae. M. G. 



Perrisia capitigena Bremi 597 

 Syn. Dasyneura capitigena Bremi. Cecidomyia euphor- 

 biae. Low. 

 Connold, Plant Galls, p. 246. 



Mercurialis perennis Linn. 107. Dog's Mercury. 

 Coleop- More or less elongated ovoid swellings on the stem, 598 

 tera branches, flower stalks, and occasionally on the petioles. 599 



Apion semivittatum Gyllh. 599a 

 Houard, No. 3867. 599* 



Mercurialis annua Linn. 42. Annual Mercury. 

 i> Stem swollen. See No. 599. 



Apion semivittatum Gyllh. 600 

 Houard, No. 3865. 



