40 Tr ansae ttons . — Zoo logy . 



anterior basal cell. Another dark streak borders the seventh 

 longitudinal vein. 



Genus Limnophila, Macquart (1834). 



" Two submarginal cells ; usually five, seldom four, pos- 

 terior cells ; discal cell closed ; subcostal cross-vein posterior 

 to the origin of the second longitudinal vein, usually closely 

 approximated to the tip of the auxiliary vein. Wings 

 glabrous. Eyes glabrous. Antennae 16-jointed. Tibiae with 

 spurs at the tip; empodia distinct; ungues smooth " (Osten- 

 Sacken). 



Of the species here described, L. delicaUda, L. marshalli, 

 L. umbrosa, and L. gcographica have short tibial spurs, not 

 much longer than the breadth of the tibia, which are not easily 

 seen among the hairs, and they may, perhaps, form a distinct 

 genus. L. crassipes also departs from the true Limnophila in 

 having no empodia, so that only two of our species are really 

 typical. In all, however, the eyes are separated, showing that 

 they are rightly placed near Livinopliila. All the known New 

 Zealand species have five posterior cells. 



Key to the Species. 

 Posterior cross-vein arising near ihe inner end of the 

 discal cell. 

 Wings ochraceous . . . . . . . , L. sinistra. 



Wings colourless . . . . . . .. L. delicatula. 



Posterior cross-vein arising in the middle of the discal 

 cell. 

 Subcostal cross-vein inside the tip of the auxiliary. 

 Spots at costal cross-vein and tip of auxiliary 



united . . . . . . . . .. L. umbrosa. 



Spots at costal cross-vein and tip of auxiliary 



separate .. .. .. .. L. marshalli. 



Subcostal cross-vein close to the tip of the auxiliary. 



Wings with ocellated spots .. .. .. L. argus. 



Wings with simple spots . . . . .. L. crassipes. 



A. Tibial spurs long, 

 a. Einpodia present. 



Limnophila sinistra. Plate IV., fig. 14. 

 Tipula ohscuripemiis, Hudson, Trans. N.Z. Inst., vol. xxvii., 



p. 294 (1895) ; not Limnophila ohscuripemiis, Skuse (1890). 



Yellowdsh-brown ; head and rostrum, sides of the thorax, 

 and a stripe on each side of the abdomen fuscous. Joints of the 

 antennae dark-brown at the base. Fore and middle femora 

 with three fuscous bands ; hind femora with the proximal 

 half, the knee, and a narrow band inside it fuscous. Wings 

 pale-yellowish, dotted with brown. A short brown band at 

 the origin of the second longitudinal vein ; another, much 

 longer, from the tip of the auxiliary along tlie chief and 

 posterior cross-veins. Others at the apices of the discal and 



