OCCURRING ABOUT HOLYWOOD. 165 



thicker before the middle in the male, but less conspicuously than 

 in D. pennatus : wings as in D. fuscipes, but the 4th nervxire is 

 less curved ; the 1st terminates in a black costal dot in the male. 



D. campestris. Mas. Femoribus posiicis, nigro-pubescenti- 

 bus, lamellis fusds. 



Face sulphureous : lamellae, below fringed with whitish down, and 

 long black hairs at the tijD : the rib of the wing has no incrassate 

 line or dot : the hairs on the hind thighs are very short. 



D. patellatus. Mas. Femoribus ifnberbibus. 

 Very rare ; no females taken. 



D. urbanus. 



The dusky wings are a character of the species. 



Pipiza interrupta. Obscure ^nea, antennis capite longioribus, 

 genubusferrugitieis, alts hyal'mis, nervura tra?isversd apicis 

 abruptd. 



Half the size of the small variety of P. virens which it resembles, 

 but the body is much less pubescent, and the front and face have 

 only a few very inconspicuous greyish hairs : third joint of the 

 antennae more oblong than in that species. 

 Taken at Tullymore Park in August 1831. (To division B.) 



Musca Chloris. Viridi-csnea, frontis vitta nigra, palpis 

 nigris, hypostomate et antennis albidis. (Long. .27.) 



(To the division Nobiles.) Smaller than M. Ccesar, the angle of the 

 fourth nervure less acute : the cheeks are darker than the rest of 

 the body : the front is tolerably broad in the male, much broader 

 in the female, with a deep black stripe, coppery, round the eyelets : 

 the front is clothed with soft hair and not with bristles : the 3d 

 joint of the antennae is glossed with dull white : this is with us the 

 most common of the Muscce nobiles, but seems to be undescribed. 



Musca degener. Nigricans, abdomine cinereo tesselato, palpis 

 nigris, antennis basi rujis. (Long. .3.) 



Resembles M. rudis, but is smaller, and the thorax without ferrugi- 

 nous scales : the antennae always ferruginous or reddish at the 

 base. 

 Common in Autumn. 



M. macellaria. Nigricans, palpis ferrugineis, abdomine oli- 

 caceo. (Long. .26.) 



