BY G. F. HILL. Ill 



termites, which they had sucked dry. In captivity, they de- 

 stroyed, in two days, 25 and 28 Khinotermes, then pupated after 

 resting two days. One fly emerged on 26th; the other pupa 

 failed to mature. 



Rhinotermes intermedius Brauer. 



Brauer, Reise Novara, Zool. Th., Neuroptera, p.49. 



This species is not so common as R. reticularis in the neigh- 

 bourhood of Darwin. 



Winged forms, soldiers (major and minor types), and workers 

 were taken under a stack of wood in Darwin, on 29th November; 

 and a month later, numbers of winged insects were taken at a 

 lamp in the vicinity. The nest was situated, apparently, under 

 the floor of an outhouse, up to which point a number of tunnels 

 were traced. 



The habits of the two species of this genus appear to be similar. 

 Swarming takes place at night, when large numbers are attracted 

 by lights, and find their way into houses. 



The individuals of a svvarm, after a short flight, settle on the 

 ground, spread their wings, and move backwards until these are 

 broken off at the cross-sutures. The males are generally the first 

 to shed the wings, the females sometimes retaining one or more 

 until after mating. Immediately the wings are dropped, the 

 males follow the females until a crevice is found under a piece 

 of wood, bark, or tussock of grass, where mating takes place. 

 Couples placed in breeding-jars partly filled with loam, mated 

 under chips of wood, then burrowed down into the soil, where 

 they lived only five or six days. 



Loc. — Darwin. 



Calotermes irregularis Froggatt. 



Froggatt, op. cit, 1896, p. 5 2 5. 



This genus appears to be represented in the Territory by the 

 above species only. It is a rare termite, only one colony having 

 been found by the writer. 



While investigating the cause of a gummy exudation from the 

 fork of a small, unidentified, exotic tree in the Botanic Gardens, 

 Darwin, on 22nd July, many larvae of a large fruit-fly {Dacus sp.) 



