444 Mr. F. Smith on the Genus Euglossa. 



thorax blue, clypeus at the sides, the labrum, and mandibles 

 white ; thorax green beneath ; abdomen purple, terminal seg- 

 ments golden green. 



2. Euglossa piliventris. 

 Euglossa jyiliventris, Q\i6t. Icon. Regne Anim. p. 458, cJ $ • 

 Hah. Para ; West Indies. 



3. Euglossa ignita. 



Male, Length 6^ lines. Head and thorax gTeen, the abdo- 

 men green, with more or less of a bright carmine lustre. 

 Labrum, mandibles, and the scape in front white ; the tlagellum 

 of the antennae, except the two basal joints, fulvous beneath ; 

 the cljpeus with a central longitudinal carina ; the labrum 

 has a central carina and one on each side, which emanates 

 from a small tubercle near the base ; the cheeks have a pale 

 pubescence, as has also the thorax beneath, the sides and in 

 front above, as well as the anterior and intermediate tarsi ; 

 the scutellum with a deep central depression ; the posterior 

 tibiffi and tarsi of a brilliant coppery lustre ; the thorax and 

 abdomen closely and finely punctured, the latter of a brilliant 

 coppery lustre beneath ; the wings subhyaline. 



Hah. Jamaica. 



The most highly coloured specimen is described; others 

 have the abdomen green, with a faint coppery tinge towards 

 the apex : intermediate states of coloration also occur. 



*4. Euglossa decoi'ata. 



Female. Length 5^ lines. Head and thorax green, legs and 

 abdomen ferruginous. Head strongly and closely punctured ; 

 the clypeus with a central and two lateral longitudinal carina ; 

 the labrum and mandibles yellowish white, the latter witli 

 their margins and apex rufo-piceous ; the antennas ferruginous, 

 with the tlagellum dusky above ; beneath, thinly clothed with 

 hoary pubescence ; the vertex with a little erect fulvous pu- 

 bescence. Thorax closely and finely punctm'ed above, and 

 clothed with fulvous pubescence, beneath it is hoary ; the 

 scutellum, tegul^, and nervures of the wings ferruginous ; 

 the latter flavo-hy aline and iridescent ; the basal joint of the 

 tarsi and margins of the posterior tibice dark purple ; the legs 

 have a thin pale pubescence. Abdomen feiTuginous at the 

 base, becoming dark fuscous at the apex ; the fourth and 

 fifth segments have their apical margins fasciated with white 



