466 [June 



6. Larrada argentata, Beauv. 

 Larra argentata, Beauv. Ins. Afric. et Amer. 21. 119. pi. 3, fig. W. 

 Lyrops argentata, Say, Bost. Journ. i. p. 370. 

 Larrada argentata, Smith, Brit. Mus. Cat. Hyra. iv, p. 292. 

 One 9 specimen. 



Genus TACHYTES. Panz. 



1. Tachytes pepticus, Say. 



Lyrops peptica, Say, Bost. Journ. i, p. 371. 



Tachytes pepticus, Smith, Brit. Mus. Cat. Hym. iv, p. 308. 



Two 9 specimens. 



2. Tachytes fulviventris, n. sp. 



Black, densely clothed with a golden sericeous pubescence ; abdomen ful- 

 vous, blackish at tip; wings hyaline; tarsi brown. 



Female. — Black ; face, cheeks, thorax and most of legs, densely 

 clothed with a golden-sericeous pubescence, more brilliant in certain 

 lights and especially so on the face ; mandibles silvery at base; antennae 

 piceous-blaek ; tegulae testaceous. Wings hyaline; nervures houey- 

 yellow. Legs black, sericeous; tibije and tarsi spinose, brownish, 

 densely covered with a golden-sericeous pile. Abdomen short, broad 

 ovate, fulvous, subopaque ; apical margins of the four basal segments 

 with a golden sericeous baud, more obvious in certain lights ; three 

 apical segments blackish, the terminal one rufo-fulvous above. Length 

 7i lines; expanse of wings 12 lines. 



One specimen. 



Genus ASTATA. Latr. 

 I . Astata nubecula, n. sp. 



Black; three basal segments of abdomen ferruginous ; wings hyaline, with 

 a fuscous cloud about the middle : metathorax finely rugose. 



Male. — Black, clothed with a fine fuscous pubescence; eyes very 

 large and meeting on the vertex ; cheeks densely pubescent ; tips of 

 mandibles piceous; antennas nearly as long as the head and thorax. 

 Thorax closely and finely punctured, shining, especially the mesothorax 

 and scutellum, where the punctures are more sparse, scarcely percep- 

 tible on the scutellum ; metathorax very finely rugose, obliquely striated 

 under a strong lens, abruptly truncate behind, the posterior truncations 

 fringed with dense fuscous pubescence; tegulae piceous. Wings hya- 

 line, slightly iridescent, the anterior pair with a large yellowish-fuscous 

 cloud beneath the stierma, covering the marginal, submaruinal and dis- 

 coidal cells ; nervures fuscous. Legs shining black, with fuscous pu- 

 bescence, especially on the femora beneath ; tips of tarsi piceous. Abdo- 

 men short, subconical, shining, black; the first, second and most of the 

 third segment bright ferruginous ; the first segment with a large, black, 

 circular depression on its anterior face ; apical segments piceous-black : 



