ITymenoptera from Dutch yew Guinea. 449 



a. reticle eloiif^ate, widening' grailiially towards 



apex, armod medio-lateiuUy with two 



small tubercles semihyalinafa, sp. ii. 



b. IVtiole unarmed, widening; abruptly towards 



upex JluviatUis, sp. u. 



11. Icaria [Icariastrum) wollastoni^ sp. n. 



5 . Niger ; clypco ajjice mandibulisque basi flavo-maculatis, margiiie 

 intoriore oculorum maculaque bilubata interantennali tiavis, 

 abdominis segmentis 2-0 tlavo-fasciatis, pctiolo apice lateribus 

 tiavo-maculato ; capito (prascipuo postoculos) thoraceque cano- 

 pubesceiitibus ; segmeiito mediano concave truucato ; alia fuscis. 



Black ; two ovate marks on clypeus at apex, a small mark 

 on the mandibles at base, a bilobed spot between the an- 

 tenna?, a line along the inner margin of the eyes, a line on 

 the apex of petiole laterally, and the ajjical margins of abdo- 

 minal segments 2-b deep yellow. Wings deep fuscous. 

 Head rather broader than thorax, a blunt tubercle between 

 the antennffi at base. Prothorax truncate anteriorly, some- 

 what sloping posteriorly, scutellum with a shallow longitu- 

 dinal depression, median segment with the dorsal surface of 

 the truncation excavated medially, tlie lateral angles bluntly 

 rounded ; petiole cup-shaped, widening abruptly towards 

 apex. 



Head and thorax finely, abdomen rather more closely 

 punctured, the truncation of the median segment within the 

 excavated area, impunctate. Head and thorax covered with 

 a short dense pubescence, densest on face and clypeus and 

 behind the eyes, pubescence on clypeus appearing golden 

 when viewed from abuve. 



Length 12i mm. 



Hah. Mimika Iliver, July 1910 ; 4 ^ . 



This fine species is most closely allied to 7. macuh'ventris, 

 Gu^rin, but may be readily separated from it by the colour 

 of the wings, which are dark fuscous, not hyaline as in that 

 species, and by the colour-marking of the abdomen. 



I have pleasure in naming this species after my friend 

 Mr. A. F. II. Wollaston, who collected all the Hymenoptera 

 brought home by the Expedition. 



12. Icaria {Icariastrum) hispinosa, sp. n. 



$ . Xiger, griseo-punctatus ; maadibulis macula flava basi minuta, 

 abdominis segmentis flavo-fasciatis ; pronolo petioloque lateribus 

 ferrugineis ; alis hyalinis. 



Black j with two small elongate marks on the mandibles 



