352 Mr. R. E. Turner on Fossorial Hymenoptera. 



The median segment is margined laterally in this species 

 by an enclosed narrow area, strongly striated. 



Sericopliorus ahnormis, sp. n. 



c? . Fusco-seneus ; mandibulis basi, scapo, flagello articulo primo, 

 tegulis, femoribus apice, tibiis tarsisque flavis ; segmentis abdo- 

 minalibus fascia angusta apicali sordide albida ; femoribus supra 

 fusco-ferrugineis. 



Long. 6 mm. 



^ . Mandibles strongly excised beneath ; clypeus sub- 

 truncate at the apex, witliout teeth. Antennas short, their 

 length not equal to the breadth of the head, thirteen-jointed, 

 the joints broader than long except the conical apical joint. 

 Byes diverging- both towards the vertex and towards the 

 clypeus ; posterior ocelli more tiian twice as far from the 

 eyes as from each other. Head and thorax minutely punc- 

 tured, and clothed with very short golden pubescence, 

 changing to silver on the front and clypeus. Postscutellum 

 raised into a distinct tubercle in the middle. Median seg- 

 ment with a well-developed tubercle on each side near the 

 base ; most of the dorsal surface occupied by a well-defined 

 semicircular basal area, which is longitudinally rugose- 

 striate, divided by a broad but shallow longitudinal groove; 

 abdomen opaque ; the second ventral segment with a strongly 

 raised transverse carina near the middle. Hind tibiffi with a 

 row of spines on the outer margin, pulvilli well developed, 

 but not abnormally large as in other species of the genus ; 

 a small tubercle on the mesosternum in front of the inter- 

 mediate coxse. Radial cell with an appendix ; second cubital 

 cell almost pointed on the radius, receiving the second 

 recurrent nervure at one-fifth from the apex, first recurrent 

 nervure received at the same distance from the apex of the 

 first cubital cell. 



Ilab. Yallingup, S.VV. Australia; December. 



1 took a single male of tliis curious species, for which a 

 new genus will probably have to be erected when more 

 material is available. Tlie difference in the structure of the 

 antennge, median segment, second ventral segment, and 

 pulvilli should be sutiicient to separate it from Sericophorus, 

 though the neuration is tiie same. The apical joint of the 

 tarsi is not thickened as in both sexes of other species of 

 ISericophorus and in some species of Zoyphiam. 



