350 ENTOMOLOGICAL NEWS [Oct., 'lO 



Type Iswaroides koebelei Ashmead (original designation.) 

 This genus was founded for a male and female collected by 

 Mr. A. Koebele in Australia. The specimens are on the same 

 pin and were supposed to be in copulation. The differences be- 

 tween the male and female are so great the two sexes falling 

 in entirely different places in Turner's table that it may be 

 that this female may have used this male as mode of transport 

 and does not even belong to the same genus.* If at some later 

 time this should be proven to be true the female would have to 

 be placed in a new genus, the male being the true type of Is- 

 waroides, occurring on the page previous to the one on which 

 the female was described. 



Male Characters. Posterior margin of head rather deeply arcuate; 

 clypeus much produced, narrowed to the truncate apex ; labrum nar- 

 row posteriorly, truncate, with the lateral angles sharp ; mandibles 

 with a distinct inner tooth; maxillary palpi 5-jointed, the first joint 

 shorter than the second, which is the longest, apical three subequal ; 

 labial palpi 4-jointed, no marked difference in the length of the joints; 

 antennae fully as long as the head and thorax (including propodeumi), 

 the third joint shorter than the fourth, joints beyond the fifth distinctly 

 arcuate, the apical joints not narrower than the basal ones; inner 

 orbits distinctly diverging toward the clypeus ; no tubercule between 

 the bases of the antennae ; pronotum not much shorter than the scu- 

 tellum, sharply truncate anteriorly and slightly arcuate; propodeum 

 gradually rounded; anterior coxae distinctly concave on the ventral 

 aspect ; tarsal claws cleft ; second recurrent vein about one-fifth the 

 length of the second transverse cubitus from the base of the third 

 cubital cell ; the spurious vein present in the first cubital cell ; gaster 

 elongate, the segments strongly constricted, not flattened ; sixth ven- 

 tral segment with distinct spines at its lateral, apical angles; the fifth 

 segment with rudimentary spines ; hypopygidium broader apically, tri- 

 dentate, the spines slender and long, the middle one the longest, ex- 

 tending beyond the seventh dorsal segment, apical dorsal segment 

 rounded apically, the lateral apical angles tuberculate. 



In Turner's table the male runs to Aclothynnits (Tnrncrclla 

 n. n.), but the labrum is truncate with the lateral angles sharp : 

 the maxillary palpi are 5-jointed ; the antennae are fully as long 

 as the head, thorax and propodeum ; and the anterior coxae are 

 distinctly concave on the ventral aspect. 



* That this is often the case has been suggested by Mr. Turner in a 

 letter. 



