90 



A. A. Girault: 



Types: In the Queensland Museum, Brisbane, the above 

 specimens, minutien mounted (2 pins) and a slide with male head 

 and posterior leg. 



Mr. Dodd informed me that this species is parasitic upon 

 larvae of the green ant, Oecophylla smaragdina, depositing eggs 

 upon them when the workers are using their silk-spinning larvae 

 for the purpose of binding the leaves together when building a 

 new nest. 



From the insertion of the abdomen, it would seem impossible 

 for food to pass into it and it would be of interest to know the 

 feeding habits of this insect. 



Note. The proofs have been read by me. Strand. 



Diagnoses of New Chalcidoid Hymenoptera 

 from Queensland, Australia. 



By 



A. A. Girault. 



Pteromalidae. 

 Diparinae. 



Genus Panstenon Walker. 



1. Panstenon australis new species. 

 Female: Length, 1.90 mm. 



Dark brown-black, the head and thorax metallic green never- 

 theless, the abdomen and legs (including coxae) brownish, fore 

 wings uniformly slightly embrowned or subhyaline; antennae 

 concolorous with the head. Head and thorax with a fine, polygonal 

 sculpture, the propodeum with a network of interlacing carinae 

 (between the spiracles; laterad of each spiracle a single long, irre- 

 gulär carina nearer the edge). 



(From one specimen, 2 / 3 -inch objective, 1-inch optic, Bausch 

 and Lomb.) 



Male: The same but the pronotum brownish and the distal 

 two-thirds of abdomen dusky blackish. 



(From one specimen, same magnification.*) 



Described from one pair captured by sweeping foliage and 

 grass in a forest bog, October 25, 1911. 



Habit at: Australia — Cairns, Queensland. 



Types: In the Queensland Museum, Brisbane, the above 

 specimens on a slide. 



*) All descriptions following were made with the same magnification. 



