84 ME. smith's CATilLOGUE OF HYMENOPTEEOUS INSECTS 



the eyes slightly reniform. Thorax red ; the wings dark brown with 

 a purple iridescence, pale towards their base. Abdomen black, smooth 

 and shining, much narrowed at the base, and subpetiolate ; the second 

 and two following segments fringed with long white pubescence ; the 

 three apical segments fringed with black. 

 Hab. Borneo (Sarawak). 



5. MuTiLLA suspiciosA. M. nigra, pubescens; alis fuscis; abdominis 

 segmentis secundo tertioque rubris. 



Male. Length 4-7 lines. Black ; the eyes slightly emarginate ; the 

 head covered with a thin silvery-white pubescence, most sparing on 

 the vertex, which is shining and coarsely punctured. Thorax covered 

 with a silvery pubescence, densely so on the metathorax ; the disk of 

 the mesothorax shining, with elongate punctures which run into striae ; 

 in the middle are three elongate carinse ; the tegulse large and shining- 

 black ; the wings dark fuscous, with a purple iridescence. Abdomen 

 finely punctured ; the apical margin of the basal segment, and the 

 second and third segments, red ; sprinkled with long glittering silvery- 

 white hairs. 



Hab. Borneo (Sarawak). 



This species very closely resembles the M. fuscopennis : but I think it is 

 sufficiently distinct. 



6. MuTiLLA GRACILLIMA. M. capitc abdomincquc nigris ; thorace 

 rubro ; alis obscure fuscis. 



Male. Length 4 lines. Head and abdomen black, the thorax bright 

 red; head shining, with longitudinal furrows, and a deep channel 

 before the anterior stemma ; the scape, and first joint of the flagellum, 

 ferruginous ; the pro- and meso-thorax rugose ; the metathorax with 

 large separated punctures; the wings fuscous, subhyaline at their 

 base; the anterior tibiae and femora, and the intermediate femora, 

 ferruginous ; the calcaria white. Abdomen : the two basal segments 

 with purple and blue tints; the apical margin of the second segment, 

 and the third segment, with a broad band of silvery-white pubescence ; 

 the following segments fringed with black pubescence. 



Hab. Borneo (Sarawak). 



7. MuTiLLA FAMiLiARis. M. capitc abdomiuequc nigris; thorace 

 rubro ; abdominis basi subito truncate ; abdominis segmenti secundi 

 basi macula, tertii fascia lata argenteo-pubescentibus. 



Female. Length 4f lines. Head and abdomen black, the former rugose ; 

 the flagellum ferruginous beneath. Thorax ferruginous and oblong- 

 quadrate ; the disk rugose ; the margins crenulatcd. Abdomen with 

 elongate confluent punctures ; the basal segment abruptly truncated ; 

 the second segment with a small ovate spot in the middle of its base, 

 and the third segment covered with short silvery-white pubescence ; 



