58 M'SCETOPHILIDJ;. 



tennce slencler, Jifteen-jointed. Thorax nearly elliptical. Wings pubes- 

 cent, moderately broad ; radial vein ending at one-third of the length 

 of the wing, connected near its tip with the cubital by an oblique 

 .transverse veinlet ; ciidlUil simple, ending at a little beyond three-fourths 

 of the length ; subapical forked at some distance beyond the tip of the 

 radial ; subanal simple ; anal distinct, curved towards the hind border. 

 Abdomen oblauceolate. Kalteres rather long. Legs slender, rather 

 long, without spines or spurs. Male. Antennce moniliform, verticillate- 

 pilose, moderately long, sixteeu-jointed. Fem. Antenna; submoniliform, 

 pilose, rather short, eleven-jointed. Abdomen longer than that of the 

 male. 



This genus connects the Mj/cetophiUda with the following 

 family, with which latter it agrees in the structure of its antenme 

 and of its legs, but resembles Sciara in the veins of the wings. 



1. leucophsea, Meig. Zw. i. 288. 31 (1818); Mcq. ; Zett.— >m«- 

 periniis ? F. Capite antenniscpie nigris, alls limpidis, venis pallidis, 

 halteribus pedibusquc testaceis ; Mas, fusca ; foem. testacea, thoracis 

 disco cinereo-fusco. Long. 1-1^ ; alar. 2-3 lin. 



Head and antennre black. Wings limpid ; veins pale. Halteres and 

 legs testaceous. Male. Body hrown. Fem. Body testaceous; disc of 

 the thorax greyish-brown. 



Not rare. (E. S. I.) Mr. Ilaliday has observed that it appears 

 earlier in the year than the following species, and occurs chieHy 

 in groves of larches. 



2. cinerea, Mcq. H. N. D. i. (1830); Zett. Nigro-cinerea, an- 

 tennis nigris, alls cinereis, femoribus tibiisque obscure testaceis, tarsis 

 nigris. Long. It ; alar. 3-i- lin. 



Blackish-grey. Antennae black. Wings grey. Femora and til)ice 

 dingy testaceous ; tarsi black. 



"Not very rare. Near Cork in September and October. On 

 grass both in open places and on the borders of groves.'" — Ha/. 

 MSS. 



Genus XVL CECIDOGONA. 



Lestremia (Subgen. Cecidogona), Loew, Ent, Zeit. Stett. v. 32-i 

 (1844). 



Coqous gracilc. Oculi emarginati. Ocelli mdli. Palpi breves. An- 

 tenna graciles, 11-articulatrp. Thorax subellipticus. Ala pubes- 

 centes; i?e?2a radialis brevis ; cuhitalis et subanalis simplices ; subapi- 

 calis furcata. Abdomen oblanccohitnm. Pedes graciles, longiuscidi, 

 spinis calcaribusqne nullis ; metatarsi clongati. Mas. Antenna) 

 moniliformcs, vcrtieillato-pilosic, Foem. Antcnnir submduiliformc?, 

 pilosa?, breves. 



