Hymenoplera from Dutch Xetc Guinea. ^51 



Petiole slender at base, widening abrujitly at apex, flat 

 beneath. Punctured, head and thorax ior the most part 

 rather coarsely^ the abdomen more finely. 



The area behind the eyes adjoining the mandibles and the 

 postscutellum beneath shining, impunctate. 



The whole clothed with short sparse golden pubescence, 

 except the median segment, which is covered with a dense 

 silvery pile. 



Length 11 mm. 



Hub. Mimika River ; August 1910. 



14. Icaria {Icariola) semihyalinata, sp. n. 



5 . Niger, gracilis ; mandibnlis clypeoque basi, scapo infra, linea 

 brevi margine iuteriore oculoriim, abdominis segmentis 2-6 fasciis 

 apice ochraceis ; tibiis omnino, tarsis plorumque ochraccis ; 

 prothorace tegulisque ferrugineis ; alls fusco-hyalinis. 



Black ; mandibles at base, tw^o spots on tbe clypeus at 

 apex, the scape beneath, short lines on the inner margins of 

 the eye, and apical fasciae on abdominal segments 2-6 

 ochraceous yellow. Prothorax and tegulpe ferruginous ; 

 wings fusco-hyaline. Prothorax narrow anteriorly, widening 

 towards the tegulse, median segments truncate, medially 

 excavated ; petiole slender, gradually widening towards apex, 

 armed medio-laterally with two small tubercles. 



Punctured, the vertex and disc of mesonotum minutely, 

 abdominal segments 2-6 rather more coarsely, the remainder 

 impunctate. Clotlied with greyish-white pubescence. 



Length 9A mm. 



Hah. Minuka River, July 1910; 1 ?. 



15. Icaria {Icariola) Jluviatilis, sp. n. 



§ . Niger ; maculis duabiis clypeo, margine interiore oculorum, 

 linea postoculari, abdominis segmentis apice fasciis, fiavis ; tibiis 

 tarsisque auterioribus infra ferrugineis ; alis hyalinis, costa 

 cellulaque radiali pallide fuscis. 



Black ; two spots on the clypeus, the inner margin of the 

 eyes, a long narrow line behind them, and all the abdominal 

 segments (that on the petiole interrupted medio-dorsally) 

 with narrow apical fasciae yellow. Wings hyaline, somewhat 

 fuscous along tbe costa, in the radial cell, and at the lip. 



Head as broad as thorax ; thorax short, massive, the pro- 

 thorax truncate anteriorly ; median segment truncate, the 

 surface of the truncation hardly excavated. Petiole short, 

 widening abruptly towards the apex, with no lateral tubercles. 



