LONCHAEIDAE SAPROMYZIDAE. 41 



which lives on the olive-tree, and Petalopliora capitata, exclusively 

 dependent on the lemon-tree, are in all respects strangers in the 

 European Fauna, so they appear to be no natives of N. A.; no 

 species of this division has hitherto been noticed there. The Try. 

 petina, on the contrary, are represented there by numerous, partly 

 very handsome species, all belonging to the genus TRYPETA in 

 Meigen's and Wiedemann's sense. 



FAM. XLV. LONCHAEIDAE. 



Charact. Neuration complete ; the auxiliary vein runs to the border of 

 the wing in the usual way, under an acute angle and without be- 

 coming obsolete, and is very near to the first longitudinal vein ; 

 this vein is bare ; the two posterior basal cells are small. Front at 

 each side with a single row of bristles ; border of the mouth with- 

 out vibrissse ; clypeus rudimentary. Middle tibiae with spurs ; all 

 tibiae without erect bristle on the exterior side before the tip. The 

 ovipositor of the female consists of three joints and is rather horny, 

 quite flattened, and ends in a simple point. 



They are divided 'into the PALLOPTERINA having more slender 

 legs and a broader front, and the LONCH^INA with stouter legs 

 and a more narrow front. 



There is only one species in N. A., that I know of, belonging 

 to the genus PALLOPTERA : of the second division I have several 

 species of LONCH^EA, a part of which seem to be identical with 

 European species. 



FAM. XLVI. SAPROMYZIDAE. 



Charact. Neuration complete ; auxiliary vein of the usual structure, fre- 

 quently very much approximated to the first longitudinal vein ; 

 costa of the wings without bristles or marginal spine ; longitudinal 

 veins without peculiar hairs ; posterior basal cells small. Front 

 with a single row of bristles on each side ; no vibrissse on the border 

 of the mouth ; clypeus rather rudimentary. Only the middle tibiae 

 have terminal spurs ; all tibiae with a small erect bristle on the 

 exterior side before the end. Ovipositor of the female not horny. 



IS". A. has numerous species of the genera SAPROMYZA and 

 LAUXANJA, and a few species belonging to PACHYCERINA Jlfacq., 

 a genus detached from Lauxania. 



