98 
Psyche 
[June 
Female (dealated). Length 2. 5-2. 8 mm. 
Antennae 10-jointed as in the worker. Deep castaneous 
brown ; pronotum, thoracic sutures, pedicel and appendages 
paler, more reddish brown. Sculpture as in the typical 
rothneyi, the anterior third of the head and the thoracic 
dorsum very finely longitudinally striated, the posterior 
portion of the head shining, sparsely and rather coarsely 
punctate, the gaster shining, with finer, piligerous punc- 
tures. 
Male. Length 2-2.3 mm. 
Black, with brown appendages. Wings clear and hyaline, 
with dark brown veins and pterostigma, the latter small and 
subelliptical. The costal vein is absent basal to the pterostig- 
ma and there is a distinct indication of a former division 
of the long cubital cell into two cells and pale indications of 
former prolongations of the cubitus and discoidal veins 
towards the tip of the wing. The hind wing is narrow and 
nas only one distinct vein, the media. 
Described from numerous workers, four females and 
three males taken at Bondowoso, Besoeki, Eastern Java and 
received from Dr. L. G. K. Kalshoven. 
My female specimens of javana do not agree with Forel’s 
description of the typical rothneyi in the number of anten- 
nal joints. In his generic diagnosis he gives the number as 
11, which is also the number given by Emery in the “Genera 
Insectorum,” but in my specimens the number is certainly 
10. Probably Forel did not examine balsam mounts, without 
which it is impossible to determine the precise number of 
the very short and crowded median joints of the funiculus. 
That both worker and female of Rhopalomastix have the 
same number is also indicated by the conditions in Melis- 
sotarsus, both the female phases of which have 6- jointed 
antennae. 
Apart from the complete absence of spurs on the middle 
and hind tibiae, the legs of Rhopalomastix also show pecul- 
iarities in the structure of the worker and female tarsi, 
which are by no means of the “common form” as stated by 
