72 Mr. R. E. Turner on Fossorial Hymenoplera. 



<3 > Pygidi° dense rugoso, forcipis lobis dorsalibus longis, apice 



inflexis, subtus basi productis, approximatis. 

 Long. 21 mm.; lat. max. 11*5 mm. 



Hab. North Borneo : Kina Balu (Whitehead) . 



I have seen only two male examples of this. Like A. bi- 

 formis, it has the lower surface of the body coppery green 

 and the legs metallic crimson, but the upper surface is more 

 green and the body is proportionately narrower. 



IX. — Notes on Fossorial Hymenoplera. — TL 



By Rowland E. Turner, F.Z.S., F.E.S. 



On a Collection from the Solomon Islands. 



The species described here were collected by Mr. W. W. 

 Froggatt, of Sydney, and sent to me for identification. One 

 or two were sent to the British Museum by Mr. Woodford 

 many years ago. As might be expected, they are nearly 

 allied to New Guinea species, and many wide-ranging species 

 were included, a list of which will be published by 

 Mr. Froggatt. 



Thynnus larbarus, sp. n. 



<$ . Clypeus large, very broadly truncate at the apex, the 

 angles not produced, longitudinally striated, deeply punctured 

 between the striae, pointed at the base and joined by a very 

 short narrow carina to the broadly rounded apex of the inter- 

 antennal carina. Labrum finely punctured and cilia te at the 

 apex, narrowly truncate on the apical margin, not emarginate 

 or bilobed, projecting much beyond the clypeus. Head finely 

 punctured rugulose, a deep frontal sulcus not reaching the 

 anterior ocellus, the space between the posterior ocelli and the 

 eyes shining and almost smooth. Antennae of almost even 

 thickness throughout, shorter than the thorax and median 

 segment combined. Thorax and abdomen closely punctured, 

 most finely and closely on the pronotum and sides of the 

 mesonotum, pleurae finely punctured. Pronotum narrowed 

 anteriorly ; the anterior margin almost as wide as the head, 

 raised, with a transverse groove behind it. Scutellum large, 

 very broadly rounded at the apex and very feebly subtuber- 

 culate in the middle of the apical margin. Median segment 

 obliquely truncate from the postscutellum, the surface of the 



