120 NOirni AMEIUCAX DUTKl^A. 



short, rarely elongated. Abdomen composed of four or five 

 segments ; genitalia of the males but little exposed ; the ovi- 

 positor jointed, more or less projecting. Wings rather large ; 

 auxiliary vein present, ending steeply and obscurely in or 

 near the border ; posterior basal cell and the anal cell distinct, 

 the latter often drawn out into an acute, often prolonged, 

 point. Wings usually with dark markings. Legs moderately 

 long; tibitB without preapical bristle. Proboscis moderately 

 long, usually with broad labella, sometimes long, and the nar- 

 row labella folding backwards. 



This family comprises a large number of rather small flies 

 usually with prettily marked wings. The larvae are not elon- 

 gate, conical and round ; the posterior stigmata lie free in two 

 separated small, chitinous platelets, forming three radiating 

 depressions; antennae short, two-jointed; mouth booklets 

 separated, thick and strong; anal end somewhat imj)ressed, 

 often in the middle with six, small, fleshy points. Puparia 

 elliptical, the anterior stigmata projecting somewhat button- 

 like. The larvffi of Ccty/tifis live in the flesh of oranges and 

 lemons, those of Aciura have been found at the base of the 

 flower stems of Phlomis, those of Aridd mining in the leaves 

 of IkHiiiex, those of SpUograplia mining in tlie leaves of 

 Si'iH'clo, or Arefiitm or bred from the berries of Solanuin 

 riiro/i/ici/sis. in the fruit of Pninifs and Lo7ucera, etc.; those 

 of Kiisliui, in the blossoms of Senrlms; those of Teplirltis 

 in the blossoms and galls of the stems or roots of various com- 

 l)osita^ ; those of Ciirpliotricha in the galls and roots of 

 ArJiillrti, tlie flowers of Hicrdciinti. etc. those of Trijjjctd in 

 tlie heads of Cirsiinii. < 'cufdHrcd, etc.. and in stems of plants. 



TABLK OF GENERA. 



1. ()vi])()isit()r of tViiKilc ixMiiiirknhly elongated aiitl curved; second longi- 



tudinal vein usually with an anterior branch. ToxoTnyi'ANA Gerst. 

 Ovipositor not remarkablv elongated and curved. .... 2 



2. Front on each side with a liristle liaving a terminal, leaf-like appendage. 



Ckii.atites Macleav. 

 l-'ront without such l)ri^tles. ........•! 



