646 
ZOOLOGICAL LITERATURE. 
Chordonota fuscipeunis, Bellardi, 1. c. p. 208; pi. 3. lig. Q, and C. carhonaria, 
Bell, ibid., from Mexico. 
Ruha opponens, Walker, 1. c. p. 107, from New Guinea, 
Cyclogaster patdseni &nd ruhriceps^ Philippi, I, c. p. 732, from Chili. 
Xylophagidjs. 
‘ Beris. Kondani (Arch. Oanestr. iii. p. 87) proposes the following division 
of this genus into four ; — 
I; Eyes hairy, or distinctly pilose. 
A. Scutellum 4-spined . . Actina (Meig.) (type A. ?iitens, Meig.). 
B. Scutellum at least 6-spined or 6-dentate. 
Beris (Lat.) (type B. vallata, Fab.). 
II. Eyes naked; or nearly so. • 
A. Scutellum at least G-spined or G-dentate. 
OpeachanthA; g. n. 
B. Scutellum 4-spined .. Oho bisops (Rond.) (type Meig.). 
• Actina =i Actina of Meigen; not of authors; Chorisops=^ Actina, Schiner & 
Loew. I • 
Hylorus, g. n., Philippi; Verb, zool.-bot. Gesellsch. in WieU; xv. p. 728, 
Allied to Xylophagm ; eyes contiguous in ; antennae with a tuft of short 
hairs at apex; wings with anterior margin convex, venation as in Beris. 
Sp. H. krausei, Phil. 1. c. pi. 26. fig. 33; from Chili. 
Lagarus, g. n.; Philippi; /. c. Antennae short; third joint indistinctly an- 
nulated ; discoidal cell wanting. Sp. L. paidsoni, Phil, p, 729; from Chili. 
Oplachantha, g. n.; Rondani; 1. c. p. 87 : see table; supra. Type Beris mexi- 
cana (Bellardi). N. sp. O. valdiviana (Phil.); Rond. p. 88; from Valdivia. 
Chorisops philippii, sp. n., Rondani; i. c. p. 88; from Chili. 
- Ccenura xanthopleura and higuttata, sp. n., Philippi; /. c. p. 726; and C. 
elegans, sp. n.; Phil. p. 727; from Chili. 
Xylophagus carhonarius, sp. n.; Philippi; p. 727; from Chili. 
Beris. Philippi (/. c.) describes the following new Chilian species of this 
genus: — B. luctifera, p. 729; trichonota, modesta, thoracica, p. 730; longicornis, 
luteiventris, and iridiventris, p. 731. 
Tabanidjs. 
Walsh (Proc. Bost. Soc. Nat. Hist. ix. pp. 302-306) describes the meta- 
morphoses of the aquatic larva of a Tahanus, the species of which he leaves 
undetermined. The larva; which is usually found among floating rubbish, 
feeds voraciously upon aquatic mollusca, and when full-grown measures 
upwards of two inches in length and swims vigorously ; it is furnished with 
retractile false feet (called pseudopodia by Walsh) on the anterior portions of 
segments 4-10. Walsh conjectures that it possesses an anal branchial 
apparatus. 
Tahanus. Rondani proposes (Archivio Canestr. iii. p. 78) to divide this 
genus into four; as follows : — 
I. Fifth and sixth longitudinal veins produced separatelj'^ to the margin. 
A, Third joint of anteiiu(e furjiished above with a long tooth. 
Hichelaceba (Macq.) 
