DARALA. 81 



NOTE VIL 



A NEW GENUS AND SPECIES 

 OE THE HYMENOPTEROUS EAMILY LARRIDAE 



DESCRIBED BY 



C. RITSEMA Cz. 



Darala , nov. gen. '). 



Head transverse, much wider than the thorax, emargi- 

 nated behind at the vertex, swollen behind the eyes; face 

 distinctly prominent, provided with various depressions, 

 the angles below the eyes angularly produced ; eyes strongly 

 divergent (making the face much wider beneath than above), 

 large , narrowing towards the mandibles , the inner orbit 

 straight; only one well developed ocellus; antennae fili- 

 form, inserted just above the base of the clypeus, the 

 scape a little enlarged and compressed at its apical two- 

 thirds , a little longer than the first and 2nd joints of the 

 flagellum taken together, the 3rd and 4th joints of the 

 flagellum distinctly notched at the extreme base, the 5th 

 very faintly so, the 2nd to 10th gradually decreasing in 

 length, the 11th or apical one as long as the two prece- 

 ding joints taken together ; mandibles curved , very slender 

 and elongate (their tips extending nearly as far as the 

 middle of the eyes) , not notched exteriorly , but provided 

 within with a tooth at about two-thirds of their length. 

 Prothorax narrower than the mesothorax, situated in a 

 lower level and sloping towards a transverse groove, the 



1) The characters are derived from the male sex only. 



Notes from the Leyden Museum, "Vol. VI. 



