COSMOSOMA.— MlsTKiit'XKMi:. 173 



points ; fore coxae white; abdomen with subdorsal scries of bright 

 crimson patches except on terminal segment, lateral crimson 

 fascia? on two basal segments, the basal half of ventral surface 

 white. Fore wing hyaline, the veins and margins black ; the base 

 black; a black discoidal bar; the terminal band expanding on 

 apical area and below vein 2. Hind wing hyaline, the veins, 

 margins, and inner area black ; the terminal band expanding 

 towards apex. 



Hab. Colombia, Medina (Fassl), type f $ in Coll. Dognin 

 Exp. 28 millim. 



559 0. Mystrocneme albicorpus. (Plate IX. fig. 7.) 

 Mystrocneme albicorpus, Kaye. Entom. xliv. p. 143 (1911). 



c? . Head and thorax black-brown ; frons white ; shoulders with 

 white spots ; teguhe, patagia, and metathorax with metallic blue 

 spots; coxae white; abdomen black-brown, the base and ventral 

 surface except at extremity yellowish white, the terminal half with 

 subdorsal metallic blue stripes. Fore wing black-brown ; a 

 metallic blue spot below base of cell; a wedge-shaped hyaline 

 patch in cell and a patch below the cell indented at extremity ; 

 rather elongate postmedial hyaline spots between veins 7 and 3, 

 the spot above vein 5 small ; a slight spot below vein 3 and point 

 above base of vein 2. Hind wing black-brown with elongate 

 hyaline spot below the cell and two spots beyond the cell. Under- 

 side of both wings with the terminal area clothed with grey-brown 

 scales except towards tornus. 



Hab. Br. Guiana (Rodway, Kaye), 2 3 , Potaro E. (Roberts), 

 type f <S in Coll. Kaye. Exj). 30 millim. 



559 b. Mystrocneme secta. (Plate IX. fig. 8.) 



Mystrocneme sectum, Kaye, Entom. xliv. p. 143 (1911). 



J . Head and thorax black mixed with some olive-brown ; palpi 

 white at base; frons white; teguhe and shoulders with whitish 

 and olive spots, the patagia and metathorax with some metallic 

 blue; cox;e with white patches; abdomen black with diffused 

 silvery blue lateral stripes, white lateral spots on the ventral 

 tubercles, and a white ventral stripe. Fore wing black-brown ; 

 a slight metallic blue streak above base of vein 1 ; a slight semi- 

 hyaline mark in middle of cell and short hyaline streak below the 

 cell ; a small hyaline postmedial spot above vein 3. Hind wing 

 black-brown, the extreme base whitish. Underside of fore wing 

 with some metallic blue on retinaculum, the terminal area pale 

 brown from costa to submedian fold where the brown runs inwards 

 to the cell ; hind wing with the basal half of costa metallic blue. 



Hab. Br. Guiana, Potaro R. (Roberts), 1 tf. Exp. 32 

 millim. 



