153 Albany Museum Records. 



sharplj" pointed. Occiput margined ; mesopleural tubercles large, 

 bordered below by a stout keel ;- the furrow is smooth, wide, 

 shallow. Abdomen smooth and shining ; the 1st segment as long 

 as the 2nd and 3rd united. Ocelli large. Palpi normal. 

 Comes near to Crassomicrodus. 



Xanthomicrodus iridipennis, sp. nov. 



Luteous, antennae black, wings hyaline, highly iridescent, the 

 costa and stigma black, the nerviu-es testaceous. Male. 



Length 7 mm. 



Antennae longer than the body, the scape covered sparsely 

 with long pale hair ; the flagellum densely with stiff black 

 pubescence. Face punctured, thickly covered with white 

 pubescence ; an oblique furrow runs from between the ocelli. 

 Mesonotum closely punctured ; the furrows deep, smooth ; the 

 pubescence thick, fuscous. Post-scutellum with a furrow down 

 the middle. The central basal area of metanotum is clearly 

 defined, longish, its base sharply pointed, reaching to the apex of 

 the basal depression; its apex transverse reaching to the top of 

 basal slope ; there are 2 are^e on its sides, the lower sharply pointed 

 on the outer side ; there are 5 large areae on the apical slope ; the 

 spiracular area is large, clearly defined. Legs thickly covered 

 with pale pubescence. 



Microdus bipustulatus, sp. nov. 



Black, shining ; pro- and mesothorax and 4 front legs rufous; 

 the clypeal, foveae, palpi and mandibles, except at the apex, of a 

 duller red ; wings uniformly fuscous-violaceous, with black 

 nervures and stigma. Male. 



Length 11 mm. 



Face and clypeus closely and somewhat strongly punctured ; 

 thickly covered with black pubescence ; a curved furrow with a 

 raised border on its outer side, runs from the hinder ocelli. Middle 

 lobe of mesonotum largely raised. Scutellum with a keel on the 

 base and apex ; the apical higher and more curved than the basal. 

 Post-scutellum depressed, its sides bordered, and there is a keel 

 in the middle. Metanotum obliquely, deeply depressed at the 

 base ; the basal central area is wider than long, transverse at the 

 apex, the base slightly, obliquely dilated at the middle ; it is 



