48 NEW ZEALAND ENTOMOLOGY. 



form they are very injurious to old wooden buildings. 

 The perfect insect chiefly frequents forest, where it is diffi- 

 cult to detect owing to its green colour harmonizing so 

 closely with the leaves. The specimen figured (Fig. i) is a 

 male, the female being considerably smaller with a much 

 stouter body and shorter legs. 



Family TlPULID^. 



Tipula fumipennis, n.s. (Plate V., fig. 2, 2a larva, 

 2b pupa). 



Another fine species, occurring in similar situations to 

 the last, but not quite so commonly. The larva (Fig. 2a) 

 may be found throughout the year under the bark of very 

 rotten henau and pukatea, feeding on the moist decaying 

 wood. It constructs in this material numerous burrows, 

 which are lined with a viscous fluid constantly emitted 

 from the mouth. Its movements in these are very rapid, 

 frequently eluding the most careful searches. When 

 divested of its slimy covering, it is anything but an offen- 

 sive-looking larva, the great air-tubes, which run the whole 

 length of the insect, being very conspicuous, and many of 

 the other internal organs are easily detected owing to its 

 partial transparency. The pupa (Fig. 2b) is enclosed in a 

 small cocoon, having ready access to the air ; it is chiefly 

 remarkable for its very large thoracic horns, which are 

 curiously toothed. The air-tubes connected with these are 

 distinctly visible in the abdomen of the insect, where they 

 may be seen branching in all directions. When about to 

 emerge this pupa works its way to the surface of the 

 log, the head and thorax are thrust outside, and the per- 

 fect insect escapes in the ordinary way. The illustra- 

 tion (Fig. 2) is taken from a female ; the male differs in 

 being less robust, and in being provided with longer legs. 



