170 AUSTRALIAN WOODBORING C0S8IDAE 



dorsal in position than the second (inner) tubercle. Abdominal 

 feet have a single row of hooks. 



Pupa of ]'J. macleayi, J length 10'4 cm. (Plate VII., 

 Figs. 13, 14, 15, 16). 



Almost unicolorous dark brown in colour, with darker 

 polished areas on pro-meso-thorax, wing and leg cases. The 

 wing cases extend partly over the third abdominal segment, but 

 are not adherent at any rate on dehiscence, they are then 

 detached and connected only by the inner membrane of legs and 

 bind wings to the second abdominal segment, the spiracles of 

 1st and 2nd abdominal segments may be seen, normal in 

 structure and in position uncovered by the semi-detached wing- 

 cases. 



The head on dehiscence carries antennae, eyecovers, etc., as 

 one piece, terminating with an anterior apparatus with a chisel- 

 like organ ; between the eyes another, and still lower a pair of 

 similar chisel-like organs. 



The abdominal segments have the anterior row of dorsal 

 spines best developed, the posterior row being merely a thin line 

 of spicules, the anterior spines are curious as regards shape, 

 each having at its tip a cuplike hollow ; there are no ventral 

 spines, the scars of abdominal feet are very distinct, but are not 

 spinous. Segment 8 has no dorsal spines, but transverse 

 lateral series more strongly developed than are the dorsal spinas 

 of other segments — this is so with pupae of F.. affinis- 

 Segments 9 and 10 are smooth, except for a few spicules which 

 may be related to hooks of anal claspers, the scar of the 

 cloacal aperture is distinctly marked. The sexua' organ extends 

 from 9-10 suture forward to about middle of 8th, being a 

 slightly raised polished surface, where it meets a V and again 

 continues as a thin straight line. The free segments are 

 3, 4, 5, 6, 7 ; in $ the free segments are 3, 4, 5, 6. 



COSSINAE CULAMA. 



C. expressa — " Lucas."* (Plate VII. Figs. 7, 7a, 7b, 7c, 

 7d, 8, 9, 10.) 



Of all the internal wood-feeding larvae we have known 

 this is the most gregarious, one piece of branch less than a foot 

 in length containing ten larvae. The burrows may be distinct 

 and run parallel with each other, or may coalesce and in one and 

 the sam6 burrow quite young and older larvae are found. As may 



• Trans. Linn, Soc. N.S.W., 1902. 



