SUPERFAM. XENOIDEA 



Stylopinse. Perkins, Rep. Exp. Stat. Hawaiian Sugar Planters' Assoc. Bull. I, Pt. 3, Honolulu (1905). 

 Xenoidea Pierce, Proc. Ent. Soc Wash. Vol. 9, p. 76 (190S); Bull. U. S. Nat. Mus. no. 66, p. 87 

 (1909). 



Characters. — Male. — Tarsi four-jointed. 



Female having cephalothoracic spiracles more or k-ss easily discernible, generally prominent; 

 four or five genital tubes entering brood-canal. 



This superfamily has been divided into four families, all parasites of Hymenoptera. 



TABLE OF FAMILIES 



ia. Male antennae seven-jointed, third joint laterally produced, fourth 

 joint short, fifth to seventh joints elongate. Female unknown . 



lb. Male antennae sixjointed, the third joint laterally produced, fourth 

 to sixth joints together not surpassing jlabellum of third. Female 

 cephalothorax broadly truncate or rounded at apex ; head about one- 

 half as wide as metathorax at spiracles; five genital tub'.s entering 

 brood-canal 



ic. Male antennae five jointed, the third joint laterally produced, fourth 

 joint very short, fifth elongate. Female cephalothorax with head 

 not more than one-half as wide as metathorax at spiracles . 



id. Male antennae four jointed, the third joint laterally produced, fourth 

 joint elongate. Female cephalothorax variable in shape; four or 

 five genital tubes entering brood-canal 



1. Fam. Mykmecoi.acid.i-:, Pierce. 



Fam. Styi.opid.e, Kirby. 



3. Fam. H yi.echthrid.e. Pierce. 



4. Fam. Xknid.e. Semenov. 



FAM. MYRMECOLACID^ 



Myrmecolacides. Saunders, Trans. Ent. Soc. Lond. p. 34 (1S72). 



Myrmecolacidas. Pierce, Proc. Ent. Soc. Wash. Vol. 9, p. 76 (1908); Bull. U. S. Nat. Mus. no. 66, 

 p. 87 (1909). 



Characters. — Male. — Antenna? seven-jointed, third joint laterally produced, fourth joint 

 short, fifth to seventh elongate: tarsi four-jointed. 

 Female unknown. 



