NEW SPECIES OF SYNTOMID^. 



143 



Rhyncopijga hraconida. 



Small white points below the eyes, on edge of patagia, and on 

 base of fore wing below. Head and thorax dull lustrous green. 

 Abdomen wuth tlie two basal segments crimson, the remaining seg- 

 ments greenish black. Legs greenish black, the third pair very long 

 and white beneath at the joint of tibia and femur. Fore wing with 

 basal half dark lustrous green, the outer half dull blackish. A large 

 orange spot on costa beyond the cell. Hind wing blackish, slightly 

 diaphanous. Expanse, 28 mm. 



Hab. Alto da Serra, Santos, Brazil, March 6th, 1910 (W. J. 

 Kaye. 



Mystrocneme sectum, n. sp. 



Frons white. A white spot on the shoulder. Thorax black, with 

 a large metallic-green spot in centre ; patagia with metallic-green 

 spots. Collar with two metallic-green spots. Abdomen with a white 

 sublateral spot at base, and with metalhc-green lateral stripes. Fore 

 wing black, with a small hyaline streak just below the cell. Hind 

 wing entirely black. Expanse, 28 mm. 



Hab. Potaro River, British Guiana, March 22nd, 1904 

 (C. B. Eoberts). 



Mystrocneme rubricorpus, n. sp. 



Frons white. Collar with two green spots. A crimson spot at 

 base of shoulder. Thorax l)lack ; patagia wdth slender metallic-green 

 stripes. Abdomen with first and second segments scarlet, the third, 

 fourth, and fifth scarlet laterally, black dorsally ; the remaining seg- 

 ments black, with some metallic-green scahng laterally. Fore wing 

 hyaline ; the apex broadly Ijlack ; a large black square-shaped patch 

 at tornus ; inner margin broadly black ; the costa narrowly black. 

 Hind wing hyaline, with a broad black margin ; the cell area black. 

 Under side of hind wing with metallic-green scaling at base of costa 

 and in cell. Tibia with metallic-green scales on outside. Expanse, 

 28 mm. 



Hah. Potaro Piiver, British Guiana, April, 1903 (C. B. 

 Eoberts). 



Mystrocneme albicorpus, n. sp. 



Black ; frons, shoulders, and coxae with white spots. Legs out- 

 wardly with metallic-green areas. Abdomen wath the ])asal segment 

 white, and the second segment edged internally with white ; laterally 

 these two segments are overlaid with pale metallic-green ; the other 

 segments green laterally and black dorsally. Abdomen beneath with 

 a central broad whitish stripe, and a short w^hitish lateral streak on 

 two first segments. Fore wing hyaline, with a broad black apical 

 patch, and a broad black area across cell. Hind wing hyahne, the 

 margins broadly black. Expanse, 28 mm. 



Hab. Potaro River, British Guiana, June, 1903 (C. B. 

 Roberts). 



Napata subjlnvescens, n. sp. 



Base of antennae with small white points ; front edge of patagia 

 orange. Thorax and abdomen blackish brown. Fore wing brownish 



