| June, 1880. 
24 
CC. Hind tibiae of males slightly curved, fore tibiae ciliated. 
Sp. 2 — hortorfm, Fallen. 
BB. Middle tibiae of males with a bristly tubercle at the base. 
Sp. 3 — podagrica, Loew. 
A A. Hind metatarsi of males with a thick beard in addition to the cushion, and 
with hind tibiae much curved. 
Sp. 4 — cfrvipes, Macquart. 
1. simplex, Lw. $ $. Ccerulo-chalybea nitida ; thorax antice 
vittis tribus latis albidis ; abdomen tesseJUs albidis, tinea dorsali , macu- 
lisque indeterminatis nigricantibus ; <$ ocutis sub-coherentibus, tibiis 
posticis subrectis, intus medio lonc/e ciliatis ; tibiis anticis intus nudis ; 
at ulce, squamis inferioribus infumatis; alee hyalines , venis longitudinali- 
bus tertiis, basi setulosis ( £ $ ) ; $ ocutis quartario capitis separatis ; 
pedibus siviplicibus ; alulis albidis. Long. 2|- — 3^ tin. 
Syx. — Musca hortorum ?, Meigen, System. Bescli., v, 73. Curto- 
neura hortorum ?, Macq., Dipteres du liord de la France, 148, and Ins. 
Dipt., ii, 276. Cyrtoneura hortorum , Rondani, Dipt. Ital., v, 213. C. 
simplex , Loew, Wiener entom. Monatschr., i, 45 ; Schiner, Fauna 
Austr., i, 596. Morellia hortorum , R. Desv., Dipt, des environs des 
Paris, ii, 636 ; Haliday, Entom. Mag., iv, 149. M. importuna, Haliday, 
Ann. of Nat. Ilist., ii, 185. 
Colour dark glossy black-blue : head black ; 3 > eyes separated by a narrow 
black space contracted in the middle, where the eyes are almost contiguous. ? , eyes 
separated by a space measuring one-fourth of the width of the head ; 3 ? , sides of 
face glistening silvery-white, with black reflections ; antennse not quite reaching 
epistome, third joint twice the length of second, of a grey colour ; arista thinly 
furnished with long hairs, which leave the apex bare for some length ; palpi black, 
epistome slightly prominent, setigerous ; facial groove bordered with bristles ; 
cheeks clothed with short black hairs : thorax with three longitudinal, broad, glisten- 
ing white stripes, most distinct on the front margin ; the lateral stripes irregular in 
shape, and only extending backwards as far as the base of the wings ; between the 
white stripes are two indistinct black ones on each side : abdomen of a glistening 
greyish-blue colour, sometimes with a glaucous tinge ; if has a longitudinal black 
dorsal stripe, and is tessellated with black and white spots or rather reflections, 
which show differently when viewed in different aspects : legs with fore femora 
clothed in 3 with soft short hairs along their outer sides, and ciliated in 3 ? , be- 
neath with long stiff bristles of nearly equal length, placed at equal distances from 
each other like the teeth of a comb ; fore tibine naked on their inner sides, and 
having only a row of short even hairs on their outer and under surfaces ; middle 
femora with a few long stiff bristles on their upper sides near the tip, and with 
some long hairs on the under surfaces near the base ; middle tibiae evenly ciliated 
along their outer sides with a row of very short hairs ; hind femora clothed along 
their exterior and under surfaces with long hairs, something similar to those under 
