NO. 2242. MORPHOLOGY OF THE 8TREPSIPTERA— PIERCE. 431 



third joint laterally produced, fourth joint elongate. Female cephalothorax 

 variable in shape, four or five genital tubes entering brood-canal. Para- 

 sites of Xenoidea, Sphecoidea, and Apoidea VIII. Xenidae Semenov. 



IV. CALLIPHARIXENIDAE, new family. 



Female cephalothorax elongate, with margin distinctly indicating 

 thoracic segments, mesothoracic and metathoracic spiracles present, 

 not surpassing the margin; brood canal extending to apex of sixth 

 abdominal segment and apparently with five median unpaired geni- 

 tal tubes. 



Triungulinid with seven simple abdominal segments, eighth dor- 

 sally enlarged, ninth greatly enlarged and partially enclosing the 

 tenth whcih is terminated by two long stylets. Shorter hairs at sides 

 of ninth. Tarsi one- jointed with three filaments or claws. 



Includes two genera and two species. 



1. C allipharixenos Pierce, type muiri Pierce; parasitic on Calli- 

 fhara; Amboina. 



2. C'hrysocorixenos Pierce, type siamensis Pierce; parasitic on 

 Chrysocoris; Siam. 



7. CALLIPHARIXENOS, new genus. 



Female with five unpaired median tubes and two pair of cephalo- 

 thoracic spiracles; cephalothorax very elongate not narrowing per- 

 ceptibly until base of head is reached. 



Parasites of the Scutellarid genus Calliphara. 



Type of the genus. — C allipharixenos muiri, new species; Amboina; 

 Calliphara hilliardierei Fabricius. 



1. CALLIPHARIXENOS MUIRI, new species. 



Plate 68, figs. 2-7. 



Described from three females extracted from specimens of Calli- 

 phara hilliardierei Fabricius, collected in Amboina by F. Muir, 

 under his number 388. One female contained two female parasites 

 in the fifth ventral segment and a male contained one female in the 

 fifth ventral. Triungulinids were present. 



Female (pi. 68, figs. 2, 3). — Entire body 8 mm. long, cephalo- 

 thorax 1.2 mm. long, about 0.6 mm. wide. Abdomen with five un- 

 paired median genital tubes. Cephalothorax elongate with two 

 pair of spiracles opening on the sides. The measurements are based 

 on the metathoracic spiracles as usual. The sides of the head extend 

 backward and inclose the prothorax. The first abdominal segment is 

 also apparently a part of the cephalothorax, separated by slight con- 

 striction. Mandibles subquadrate with tooth at inner apical angle. 



From this point on whenever females are measured the following 

 dimensions are taken with the aid of a Bausch and Lomb microscope, 



