25 i-J'iiy. 



tlie fore femora ; hind tibiae nearly straight, slightly thickened in the middle, besot 

 witli bristles of unequal lengths on their outer sides, having a few long hairs on the 

 lower half of their under surfaces in S and $ , and also a few long soft hairs on 

 their inner sides, just below the middle in S ; hind tarsi with a cushion of short 

 stiff bristles of a brownish-yellow colour on their under surfaces : alulets with the 

 upper or smaller valves half white and half grey, and the lower and lai'ger ones of 

 an uniform smoky-brown colour in $ , with a yellowish marginal fringe, and dirty 

 white in ? : halteres yellow : wings clear, with black veins ; third longitudinal vein 

 with a small tuft of bristles at its base in $ and ? , some of which extend a short 

 distance towards tlie small cross vein. 



This species is generally distributed throughout Europe ; it is less 

 eommou than the next in most parts of England and Ireland (Haliday), 

 and also in Germany, but more general in Italy and probably in 

 Erance. 



It is very difficult to decide to which species to apply Eallen's 

 original name, as modern authors differ so much on this point. 

 Haliday, whose opinion is worthy of every respect, changed his mind 

 upon the subject. In his original paper in the Entomological Maga- 

 zine, in which he first pointed out the distinctive characters between this 

 and the following species, he named the one I have first described hor- 

 toriim ; but in the second volume of the Annals he said that he was 

 mistaken, and believed that the next species which he had before named 

 importuna was the true liortoruin of Fallen. I have already said that 

 I have no doubt whatever that Fallen, Meigen,Zetterstedt,* and others, 

 confused two species together, so that it matters little which of the two 

 retains the original name ; I have therefore concluded to follow Loew, 

 the greatest modern authority on Dipterology, who gives the i^anie of 

 liortorum to that species which a|)])tars to be most common in the north 

 of Europe. 



2. HORTOitUM, Fall. (^ ? . Ohtuco-chnli/hca nitida. Thorax ef 

 ahdomen ut j'jjM. simplice sic/iinfd; J oculis 2}"uIo disf/i iitih/is ; femoribus 

 anticis suhtus exiraquc harhnlis ; lihiis anticis estra s2)inosis Intuaqiie 

 villosis ; femorihus medlis apice crisiatis ; tibiis po^ticis levitcr curvatis, 

 inttin hrevite}^ villosis ; alulis sordide albidis ; alis,renislongitudinaJibiis 

 tertiiii, setis parvis armaiis, ordine posif is, inter basem vencc et vencwi 

 tr((nsversam parvam. ^ oculis frrfi'i parii capitis separatis ; pedibus 

 siwplicibus. Long. 3 — 4|- lin. 



8yn. — Musca horturum, Fallen, i\.ct. Holm. (1S16), 252, 33, et 



* Zetter.stedt, in Dipt. Scand., describes his Cyrtoneura hortorum as having the eyes in <? 

 " coherentes (non vero arctissimii," et " tibins omnes rectfe" — both these characters apply to M. 

 nihifdex; but he adds, " squama; albsc," et " feinor-j, antica cactus in <J villosa"— both of which 

 ai>iily to M. liortorum. 



