132 HYMENOPTERA OF SARAWAK. 



orbits, pronotal tubercles, scutellar keels, centre of scutellum 

 broadly, post-scutellum, two large marks on the apical slope of 

 the metanotum, extending on to the pleura, tegulae, tubercles, 

 a square mark on the lower edge of the mesopleurae in the 

 centre, the narrowed base of the 1st abdominal segment, its 

 apex more narrowly, the apices of the others and the ventral 

 segments from the 1st, yellow. Legs yellow, the femora 

 with a fulvous line, the hinder coxae below and broadly at the 

 sides, trochanters, apical third of hind femora, base of tibiae 

 narrowly, their apex more broadly and the apical joint of the 

 tarsi, black ; the rest of the tarsi white. Flagellum of antennae 

 broadly white. Wings hyaline, the stigma and nervures 

 black. 2 . 



Length 14 ; terebra 5 mm. 

 Hab. Matang. August. 



Front and vertex smooth and shining ; the former furrow- 

 ed ; face obscurely shagreened. Mandibles yellow, black at 

 the apex. Palpi yellow. The tubercles on the pronotum are 

 large, longish, their apex with a longer, less rounded slope 

 than the base. Pro- and mesothorax smooth and shining ; the 

 middle lobe of mesonotum broadly rounded at the apex, the 

 furrow with a keel in the centre ; it is widely separated from 

 the apical depression which is large and deep. Base of 

 metanotum smooth, the rest closely, transversely striated ; the 

 sides on the top of the apical slope are slightly tuberculated ; the 

 apical slope is straight and obliquely sloped. Propleurae, 

 except below with stout, curved keels ; the mesopleurae 

 below the tubercles and the lower half at the base, and 

 the lower part at the apex obscurely striated ; the metapleurae 

 closely, coarsely obliquely striated. Mesopleurl furrow 

 stoutly striated. Sternum thickly covered with white hair. 

 Abdomen smooth and shining ; the 2nd and 3rd segments 

 opaque, closely punctured, except on the base of the 2nd 

 which is smooth, and the sides at the base which are aciculated. 



SHsila (described Manchr. Memoirs,- 1903, No. 14, p. 1) 

 has the appearance of a Friona which it also resembles in the 

 striated metanotum, but it belongs to the M esostenini, while 

 Friona belongs to the Cryptini. It is easily known by the 



Jour. Straits Branch 



