INSECTA. 475 



Cuv. R. Ani., ed. ill., Ins. PI. 70, fig. 8; ike red lily -beetle ; Crioceris aspa- 

 ragi, Chrysomela Asparagi L., RCESEL, Ins. 11. Scar. terr. Cl. in. Tab. iv. 

 VOET, Tab. cit. fig. iv. PANZ. Deutschl. Ins. Heft 71, Tab. 2 ; 2$"' long, 

 with a black-blue abdomen, black head, brown-red thorax, with two black 

 spots, black elytra, each with three yellow spots and a yellow point. The 

 larva and perfect insect live on the asparagus. 



Petauristes LATE, Posterior femora incrassated. 



Donacia FABR. Antennas scarcely larger than head and thorax, 

 entire. 



Auchenia THUNB. Posterior femora not incrassated. Thorax 

 produced at the sides. Last joints of antennae broader, produced 

 inwardly. 



Donacia FABR,, LATH. (Donacia and Hcemonia, MEG., DEJEAN). 

 Posterior femora incrassated. Antennae filiform, with last joints 

 slender, elongate. 



Sp. Donacia sagittarice L., PANZ. Deutschl. Ins. Heft 29, Tab. 7, Cuv. R. 

 Ani., ed ill, Ins. PI. 70, fig. 5 ; Don. Nymphcece (and Don. sericea) FABR., 

 Leptura serigea L. &c. LINN^US enumerated the species known to him 

 under the genus Leptura. Comp. on the genus Donacia, D. H. HOPPE, 

 Enumeralio Insectorum elytratorum, circa Erlangam indigenarum, Erlangse, 

 1795, 8vo. pp. 38 48, with 13 col. figs. They are small beetles, living on 

 water-plants, between 3 and 5'" long, mostly of a shining green, copper- 

 lustrous colour. 



Phalanx II. Sagrida. Mandibles triangular, with apex acute. 

 Ligula emarginate 1 . 



Sagra FABR. Eyes reniform, emarginate at the base of an- 

 tennae. Posterior femora incrassated, tibias incurved. Body narrow, 

 gibbous. 



Sp. Sagra femorata FABR., Tenebrio femoratus DRURT, Tenebrio viridis 

 SULZER AbgeTcurtze Gesch. d. Ins. Tab. vn. fig. 8, Cuv. R. Ani., ed. ill., 

 Ins. PI. 70, fig. 2, OLIV. Coleopt. No. 90, PI. I. fig. i, &c. Comp. on this 

 genus F. WEBER, Observ. Entomol. 1801, pp. 60 64. Add Sagr. JBuquettii, 

 LESSON; S. Boisduvallii DUPONT, LESSON, lllustr. de Zool. PI. 30, 

 GUERIN, Magasin de Zool. 1832, Ins. PI. 32, &c. 



Sub-genera: Ametalla, Mecynodera, HOPE; Megalopus FABR. Head 

 nodding ; eyes large, protuberant. Body oblong, somewhat broad. 



1 To this the genus Pcecilomorpha of HOPE and LACORDAIRE forms an exception. 

 Perhaps it were better to distinguish both divisions by the mandibles alone, or indeed 

 entirely to drop them. 



