HYMENOPTERA PROM SARAWAK. 109 



hair ; there is a clear yellow band at the base of the dilated part of 

 the petiole, a narrower one at the base of the second segment, 

 a large oblique mark on either side of its middle, a narrow longi- 

 tudinal line in its centre, and the apices of the other segments 

 narrowly, yellow. The black on the abdomen has a brownish 

 tinge. 



EUMENIDJE. 

 Montezumia ? forticeps, sp. nov. 



Black ; the clypeus, the underside of the scape, two oblique 

 lines on vertex, a large mark, narrowed below on the outer 

 orbits ; the pronotum broadly, two lines on the mesonotum, two 

 marks on the scutellum, two lines on the post-scutellum, 

 the sides of the median segment broadly, a line on the side and 

 apex of petiole, two lateral marks on the second abdominal 

 segment and the apices of the second, third and fourth segments, 

 yellow ; the wings fuscous-hyaline, with a fulvous tinge. $ . 



Long : 21 mm. 



Hab. Mt. Matang, Sarawak. 



Antennae black ; the scape largely yellow below. Head 

 largely developed behind the eyes ; closely punctured, the front 

 more closely and strongly than the vertex ; the eye incision less 

 closely punctured than the vertex ; above the antennas is a small, 

 somewhat conical mark, which is smooth and furrowed in the 

 middle, except above. Clypeus distinctly broader than long ; 

 sparsely but distinctly, punctured ; its apex is narrowly black ; 

 the sides of the incision are oblique and project at the apex. 

 The marks on the pronotum become roundly dilated on the 

 outer side and do not quite reach to the middle ; the two lines on 

 the mesonotum are in the middle following the parapsidal furrows 

 and are about equal distance from the base and apex. The two 

 marks on the scutellum do not quite reach to the middle and are 

 broader than long. The two marks on the median segment 

 extend on the inner side to the edge of the furrow and are 

 roundly narrowed on the inner side above. There is a yellow 

 mark on the mesopleura?, longer than broad, below the base of 

 the front wings. Pro- mesonotum and scutellum closely punctur- 

 ed ; the mesonotum less closely and strongly at the sides. The 

 parapsidal furrows commence shortly beyond the middle. The 



