P. qihhiis, nnqnicularis, wesmncli, aiul consobrinns arc also red- 

 bodied, the 2 2 with a complete pecten. In this and the preceding 

 section the 6th dorsal segment beai*s only a few long fine hairs, like 

 those on the ventral surface. 



The three remaining black-bodied species are very different from 

 one another, but with the exception of serlceiia, which he made the type 

 of a new genus Aporoideus, I cannot place them in Ashmead's classifi- 

 cation. The male of this has very peculiar abdominal characters., the 

 2 has a somewhat weak pecten, but it is complete, the second tarsal 

 joint having an elongate spine on the outer side. 



P. jjliimheus is remarkable for the density of the adpressed clothing 

 in the c? and the pecten of the 5 is very long and perfect. Even in so 

 distant and different a locality as tropical Australia, I met with a species 

 closely allied to this. P. clnctellns neither superficially nor in sti'ucture 

 has any similarity to any of our other species. The jiecten of the $ is 

 imperfect, the second tarsal joint having no long spine on its outer 

 margin towards the middle. Uomonotus {H. sanguinolentiis) is a 

 distinct genus, equal in value to Aporus. 



A.S the females of several species were not included in the tables in 

 Saunders's latest book, the one following may be of use, showing the 

 I'elationship of the species. On our present knowledge the $ $ of 

 gihhus, loesmaeli, and tcuf/uictilaris cannot be separated by definite 

 characters, nor, I think, with certainty on any characters. 



1 (14) Abdomen with the bnsal segments red. 



2 (3) Third antennal joint subequal to the scape in length, 3 times as long 



as its greatest width or less. (Proiiotum either arcuately or very 

 obtusely * iingulately emargiiiate ; 6th dorsal segment with at most 

 a very few fine hairs.) pectinipe.«. 



3 (2) Third auteiiual joint conspicuously longer than the scape and usually 



much more than three times as long as wide. 



4 (7) Sixth dorsal segment with many bristly liairs, denser and stouter than 



those im the 6th ventral. 



5 (G) lied abdominal segments witliout conspicuous dark apical bands 



propodeum merely tonientose, not pilose chulybeatus. 



(H) Red segments with conspicuous dark bands ; propodeum pilose. 



viaticus. 



7 (4) Sixth dorsal segment with only a few fine long hairs, resembling 



those on the 6tli ventral. 



8 (11) Pecten of front tarsi well developed and complete, the second joint 



with an elongate spine towards the middle of its outer margin, as 

 well as at the apical angle. 



* In some examples the anf;ulation is as i^ronounced as in chali/beaius. 



