DIITKRA. 377 



an oviiX)sitor ; the antennae are always short, en palette, and their seta 

 is rarely pilose. 



Several species approach those of the last subgenera in the narrow 

 and elongated form of their body, the length of their legs, their head 

 more globular or elongated than in the other Carpomyzye, where its 

 form is hemispherical. These elongated species constitute these 

 subgenera*. 



Diopsis, Lin., Fab., 

 Also called Mouches a lunettes, on account of their eyes being 

 placed at the extremity of two lateral, distant, and cylindrical pro- 

 longations of the head; the attennse are inserted beneath. The scu- 

 tellum is terminated by two spines. These singular Diptera, of 

 which M. Dalman has given us a good Monograph — Anal. Entom. 

 I — are foreign to Europe. 



But few species are known; one of them is red with a black 

 thorax, and a spot of the latter colour at the extremity of the 

 wings ; it is found in Guinea and Senegal. I have received a 

 specimen of this species from the liberality of my friend Count 

 Tousselin, who obtained it from Senegal. M. Dalman, who de- 

 scribes five of them, calls it apicalis. 



Cephalia, Meig., 

 Where the palette of the antennae is narrow, elongated, and almost 

 linear, with a pubescent seta; the fore-part of the head is considera- 

 bly prolonged and without setae; the palpi are strongly dilated in the 

 manner of a spatula f . 



Sepsis, Fall., il/e/^r.— Tephritis, Fab. — Micropeza, Lat., 

 Where that palette is much shorter and semi. elliptical, and has a 

 simple seta; the anterior part of the head projects but little and is 

 covered with setee ; the palpi are almost filiform, and simply and 

 gradually increase in thickness. 



S. cynipsea; Musca cynip.vea, L. Very small; cupreous- 

 black and glossy; head black; coxae and anterior legs fulvous; 

 a black point neir the extremity of the wings. It diffuses a strong 

 odour of Balm, and is found in great niuiibers on leaves and 

 flowers ; its wings are constantly but slowly vibratingj. 

 The other Capromyzie have the port of common flies, a short 

 hemispherical head, triangular or conical abdomen, and moderate 

 legs. 



Sometimes the superior plane of the head is almost horizontal or 

 slightly inclined, so that the attennoe, when viewed in profile, appear 

 to be inserted almost on a level with that plane, or near the front. 

 The palpi and the proboscis are retracted within the oral cavity. The 

 wings are turned up when at rest, and the abdomen exhibits five 

 annuli exteriorly. 



• According to MeLgen, two of these subgenera, Cephalia and Sepsis, have but four 

 apparent abdominal annuli, whilst the following subgenera, Platysoma excepted, ex- 

 hibit five. 



t Meig., Dipt., XLVII, 10—16. See the genus Calohala, Fab. 



+ For the othrr .^pecics, see Meigen. 



VOL. IV. C C 



