AGROMYZA. 



241 



of many kinds of trees and herbs, which are discoloured by their 

 ravages. Mr. Hardy and M. Goureau have investigated the ha- 

 bits of several species, which are here mentioned, with the plants 

 which they infest : 

 Agromyza Macquarti, Goureau, feeds on Verbascum Thapsus. 



Ira?os, Desv. , 



Medicaginis, Desv. 



maura, Meig. 



pusilla, Meig. 

 Phytomyza Aquifolii, Goureau, 



,, Lonicera?, Desv. 



Primulae, Desv. 



,, Aquilegia?, Desv. 



Thapsi, Desv. 



Xylostei, Desv. 



Lappa?, Goureau, 



Sonchi, Desv. 



Sphondylii, Desv. 



,, Ranunculi, Desv. 



,, Scolopendri, Desv. 



,, geniculata, Mcq. 



lateralis, Fal. 

 Plantaginis, Desv. 



Discal transverse vein 



beyond the prsebrachial transverse . . 

 in a line with the preebrachial transverse, 



Iris Pseudacorus. 



Medicago sativa. 



Crepis biennis. 



Euphorbia Cyparissiat. 



Ilex Aquifolium. 



Lonicera. 



Primula grandiflora. 



Aquilegia vulgaris. 



J^erbascum Thapsus. 



Lonicera Xylosteum. 



Arctium Lappa. 



Sonchus oleraceus. 



Heracleum Sphondylium. 



Ranunculus acris. 



Scolopendrium. 



Tropteolum capucinum, Pisum 

 sativum, Crambe maritima, 

 Papaver orientale, Matrica- 

 ria officinalis, Cheirantkus 

 Cheiri, etc. 



Sonchus oleraceus and Leucan- 

 themum ChrysantJtemum. 



Plantago lanceolata. 



\. AGROMYZA. 



or none 



2. PHYTOMYZA. 



Genus I. AGROMYZA. 



AGROMYZA, Fal. Agromyz. (1823) ; Meig. ; Mcq. ; Westw. ; Zett. 



Corpus parvum aut minimum, convexum, breve, subsetosum. Antenna? 



breves ; articulus tertius rotund us ; arista setiformis, gracilis, nuda. 



Thorax subellipticus. Ala mediocres ; vena discalis transversa pra- 



brachiali transversa disjuncta. Abdomen plerumque breve. Pedes 



graciles ; ungues et onychia minima. 



Body small or very minute, convex, short, thinly beset with bristles. 

 Head generally narrower than the thorax. Eyes rather small, or of 

 moderate size. Antenna? short ; first and second joints very small ; 



VOL. II. 2 t 



