344 PROCEEDINGS OF THE NATIONAL MUSEUM. vol 51. 



other pair not far caudad of the thoracic tracheal folds. On the 

 raised median and the subdorsal area there are about a dozen pairs 

 of promment spines, the ari-angement of which may be seen in the 

 figure. The vasiform orifice (fig. 13) is subcordate hi outline with 

 irregular folds showing on the margin. The operculum is of a 

 similar shape with the lateral margins indented and it obscures the 

 lingula. Tlie margin is dentate, the teeth being evenly rounded at 

 their tips (fig. 11). A space of 0.1 mm. is occupied by 24 teeth. 



Habitat — Australia, on Acacia longifolia. 



Types on slide mounts forming part of the Maskell collection, on 

 which the above description is based, 



ALEUROCANTHUS LONGISPINUS, new species. 



Plate 35, figs. 1-G. 



This species was taken on bamboo at Calcutta, India, during Octo- 

 ber, 1910, by R. S. Woglum, and also on the same plant at Mouhnein, 

 Burma, in December. It is a very large species and in size agrees 

 with hambusae Peal taken on bamboo in India. The larger number of 

 spines, however, at once separates it from that species. 



Egg (fig. 5). — Size 0.165 by 0.075 mm.; shape subreniform, 

 shghtly curved with the stalk situated near the larger extremity, on 

 the concave side ; surface covered with hexagonal areas (fig. 6) , w^hich 

 are about 0.006 mm. in diameter; color light bro^\^l. 



Pupa case (fig. 1). — Color black and very heavily chitinized so 

 that it is with difficulty that the details are studied. After boiling 

 for five minutes m aqua regia, the color is dark browTi, wdth a darker 

 median longitudinal area, w^hich broadens somewhat across the 

 abdomino-thoracic suture. Shape broadly oval, broadest across the 

 third or fourth abdominal segment. Its size is 2 by 1.6 mm. On the 

 submarginal area some considerable distance from the margin there 

 is a closely set row of one hundred or more spines. These are not of a 

 uniform length, but extend for a considerable distance beyond the 

 margin. On the dorsum there is also a number of shorter spines, the 

 relative average position of which is indicated m the figure. These, 

 however, show some variation in different specimens. The abdomi- 

 nal sutures are fairly weU defined in the aqua regia specimens, though 

 it is almost impossible to distinguish them in other material. On each 

 side the median area and arranged along the abdominal sutures, are a 

 number of small circular dark pore-hke areas (fig. 4). It is 

 possible that these areas may have originally been the seats of minute 

 bristles, but we have been unable to distinguish such in any material. 

 The margin (fig. 2) is dentate, the teeth being blunt and evenly 

 rounded. These teeth are situated close together and are small, a 

 space of 0. 1 mm. being occupied by 7 or 8 teeth. Just within the mar- 

 gin, extending inward opposite each tooth, is an elongate rounded. 



