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. 



Irseos, Desv. 



Medicaginis, 



maura, Meig. 



pusilla, Meig. 

 Phytomyza Aquifolii, Goureau, 



Lonicerse, Dos?. 



Primulse, D^v. 



Aquilegise, Desv. 



Thapsi, Desv. 



Xylostei, Z^est?. 



Lappse, Goureau, 



Sonchi, 7)<?5z?. 



Sphondylii, Desv. 



Ranunculi, Desv. 



Scolopendri, Desv. 



geniculata, Mcq. 



lateralis, Fal. 

 Plantaginis, Desv. 



Iris Pseudacorus. 



Medicago sativa. 



Crepis biennis. 



Euphorbia Cyparissias. 



Ilex Aquifolium. 



Lonicera. 



Primula grandiflora. 



Aquilegla vulgaris. 



Verbascum Thapsus. 



Lonicera Xylosteum. 



Arctium Lappa. 



Sonchus oleraceus. 



Her odeum Spliondylium. 



Ranunculus acris. 



Scolopendrium. 



Tropteolum capucinum, Pisum 

 sativum, Crambe marttima, 

 Papaver orientale, Matrica- 

 ria officinalis, Cheirantkus 

 Cheiri, etc. 



Sonchus oleraceus and Leucan- 

 themum Chrysanthemum. 



Plantago lanceolata. 



S beyond the prsebrachial transverse . . 1. AGROMYZA. 

 . 



<, 



in a line with the preebrachial transverse, 



2. PHYTOMYZA. 



Genus I. AGROMYZA. 



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



Corpus parvum aut minimum, convexum, breve, subsetosum. Antennae 

 breves ; articulus tertius rotundus ; arista setiformis, gracilis, nuda. 

 Thorax subellipticus. Ala mediocres ; vena discalis transversa pr<s- 

 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. Antennae short ; first and second joints very small ; 



VOL. II. 2 I 



