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positor issues from close to the base of the abdomen in all of 

 these, and is in all respects similar to that of many species of 

 Eulophidae or of other Chalcid families. ((See PI. XIII fig. 3 

 and fig. 6.) Further the scape of the antennae is always slender 

 and elongate, except in a very few males. I am therefore led 

 to ask myself whether there are species of Mymaridae with the 

 structure of the ovipositor as described by Foerster and Ash- 

 mead, and which would partly account for the fact that several 

 of the greatest of entomologists placed the group in the Proc- 

 totrupids, with which. in this respect they were thought to near- 

 ly (though not exactly) agree, and if so, whether the family is 

 really a natural one. It is certainly remarkable that, whereas 

 in other respects my species and genera fall readily into the sui)- 

 families and tribes, that have been suggested, yet they do not 

 agree in the structure of antennae nor in the ovipositor with the 

 family characters. 



An important character rccjuiring further study is the struc- 

 ture of the mesonotum. In some species this appears to be 

 formed much as in many Eulophidae, the axillae being produced 

 forwards acutely into the parapsides. In others I can detect no 

 marked forward extension of the axillar pieces. In all the 

 species specially examined by me, this forward extension is 

 correlated with a sessile abdomen and does not occur in the 

 pedicellate and subpetiolate forms. 



In conclusion the species which I have most particularly 

 studied, viz: those here descri1:)ed under the genera Anagnts, 

 Paranagnis, Gonatoccnis and Alapiiis appear to me to be most 

 nearly allied to certain Eulophidae, though differing greatly 

 from these in the structure of wings and antennae, and further, 

 amongst themselves present differential characters of perhaps 

 even family value. 



LIST OF MYMARIDAE HERE DESCRIBED. 



1. Ooctomis aiistralciisis, sp. nov. 



2. Polyncnia (?) rcdnvioli, sp. nov. 



3. Gonatoccnis cingiilafiis, sp. nov. 



4. Alaptus iiiiiuufiints, sp. nov. 



5. Aiiagnis frcqiicns, sp. nov. 

 0. Aiiagnis coliiinbi, sp. nov 



Paranagrus, gen. nov. 



7. Paranagrus opfabills, sp. nov. et typ. gen. 



8. Paravtagrus perforator, sp. nov. 



