MEEOMYZA. 225 



Corpus sat longum. Frons producta. Facies obliqua. Antenna breves ; 



articulus tertiusfere rotundus ; arista gracilis, nuda. Femora postica 



crassa; tibiae postica arcuaia. 



Body rather long. Head not broader than long. Front produced. 

 Face oblique. Proboscis and palpi short. Antennae not reaching the 

 epistoma ; third joint nearly round, longer than the second ; sixth 

 slender, bare. Wings rather narrow ; costal vein ending at about four- 

 fifths of the length of the wing ; subcostal ending at one-third of the 

 length ; radial ending at beyond half the length ; cubital ending at 

 about four-fifths of the length ; prsebrachial ending on the hind border 

 near the tip ; pobrachial ending at beyond half the length ; discal 

 transverse straight, upright, parted by a little more than its length 

 from the prsebrachial transverse, and by full four times its length from 

 the border. Abdomen longer than the thorax. Legs of moderate 

 length. Hind femora thick. Hind tibia curved. 



The Meromyzcv frequent herbage. The species are few in num- 

 ber, and may be thus distinguished : 

 a. Thorax with black stripes. 



b. Abdomen longer than the thorax. Species 1. 



b b. Abdomen almost twice the length of the thorax. Species 2. 

 a a. Thorax with pale red stripes. Species 3. 



1. saltatrix, L. Fn. 2317 (1761); Fal.; Meig.; Mcq. ; Zett. 

 mirntta, Gmel. ; F. clavicrus, Schr. ; Gmel. Viridis, antennis supra 

 fuscis, tJiorace nigro-trivittato, alis sublimpidis, abdomine thorace longiore 

 e maculis nigris trivittato. Long. IT- If ; alar. 1 j 2f lin. 



Pale-green. Head with a forked luteous mark in front. Front less 

 produced than in M. pratorum ; a black dot on the vertex. Antennas 

 brown, pale green beneath and towards the base. Thorax with three 

 black stripes. Wings nearly limpid. Abdomen longer than the thorax, 

 with three rows of black dots. 



Common. (E. S. I.) 



2. pratorum, Meig. Zw. vi. 165. 1 (1830) ; Mcq. ; Zett. viridula, 

 Hal. Viridis, antennis piceis, thorace nigro-trwittato, alis limpidis, 

 abdomine thorace fere duplo longiore vitta dorsali maculisque duabus 

 basalibus nigris, tibiis tarsisque fulvis. Long. 2^ ; alar. 3 lin. 



Pale-green. Head with a forked luteous mark in front ; a black dot 

 about the ocelli. Antenna3 piceous, pale green towards the base. Tho- 

 rax with three black stripes. Wings limpid. Abdomen almost twice the 

 length of the thorax, with a black dorsal stripe, and with a black dot on 

 each side at the base. TibiaB and tarsi tawny. 



Common. (E. S. I.) 



3. variegata, Meig. Zw. vi. 165. 2 (1830); Mcq.; Zett. Flava, 

 antennis apice fuscis, thorace vittis tribus rufis duabusque nigris, alis 

 sublimpidis, abdomine e maculis nigris trivittato. Long, li-lf ; alar. 

 2|-3 lin. 



VOL. n. 2 G 



