262 S. W. "SVILLISTON, M. D. 



the costa to near tip of the second vein, where there is a narrow transverse spot, 

 reaching into the first posterior cell ; third vein straight, outer anterior angle of 

 first posterior cell acute, the cell short petiolate; false vein wholly wanting. 



9. Front narrowed above, plane, black, not shining; below the middle a 

 narrow, complete, yellow, pilose band. Third abdominal segment wholly with- 

 out yellow; spots on the second more broadly separated, less nearly square than 

 in the male. 



One male and three females, Chapada (December). This species, 

 with the following ones, is a most interesting addition to our know- 

 ledge of the fauna. It is a true Lepidostola (Leproinyia Loew. ; 

 Lepidoiiujia WiW.), though the dense scale-like tomentuni is confined 

 to the thoracic bands. The femora are all thickened, with a double 

 row of short, strong spines below. The three species are all allied 

 with the long-antennped Chrysogastrm. The veins of the wings are 

 strong, the neuration approaching nearly to that of C. nigripes Loew., 

 except that the last section of the fourth vein is strongly bent near 

 the middle, forming an acute angle at its insertion. The eyes, as 

 restored over wet sand, show four or five brown (or purple?) hori- 

 zontal, zigzag stripes. 



13. Lepidostola siinilis n. sp. 



9- — Length 5 mm. Mesonotum with three bright yellow tomentose bands; 

 fourth abdominal segment with two large, elongate, opaque spots. 



A single specimen with the others, though closely resembling them, 

 is evidently of a different species. The front is broader above, the 

 face has a broad, shining black stripe, and both are rather thickly 

 clothed with yellow tomentum like that of the thorax. The elongate 

 yellow tomentose spot back of the stripe on the jileurte is wanting, and 

 in its stead there is a diffuse patch of fine white tomentum. The ab- 

 domen differs in having smaller yellow spots on the second segment. 

 Large opaque spots on the third, and two large elongate ones, not 

 reaching the hind margin, on the fourth. The last section of the 

 fourth vein is strongly angulated, with a long stump of a vein pro- 

 jecting into the first posterior cell ; the posterior cross-vein has also 

 a stump. The stigma is blackish, the posterior cross-vein and ante- 

 rior cross-vein with small, but distinct brown clouds. Lastly, the 

 eyes differ in not having zigzag, but straight, horizontal markings. 



14. liepitlostola abdoiiiiiialis n. sp. 



9- — Length 6 mm. Black; third and fourth segments of abdomen densely 

 yellow tomentose. Face shining black, in profile nearly vertical, descending 

 much below the eyes. Antennte slender, longer than tbe face, the third joint 



