176 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.55. 



having a yellow stripe on anterior tibiae, middle of mesothorax rosy- 

 purple, and abdomen with strong coppery tints. Possibly a valid 

 subspecies is indicated. The insect is closely allied to the larger C. 

 chrysocephala. 



CERATINA AMABILIS Cockcrell. 



S. Lucrecia, Vera Cruz, Mexico (Crawford). From the same place 

 is a specimen of the similarly colored Augochlora ignita Smith. 



CERATINA MORRENSIS Strand. 



Females. — San Bernardino, Paraguay (K. Fiebrig) . One is marked 

 November 1, at flowers of Zea mays. The three specimens before me 

 have the dimensions of Strand's variety cuprifrons; the abdomen 

 varies from brassy-green to blue-green and almost black. The strong 

 violet tints, especially about the head, are very beautiful. This is 

 closely allied to C. cupreiventrls Smith from Ega, which Ducke has 

 proposed to treat as a synonym of C. maculifrons Smith, but the 

 latter is constantly much smaller and so far as I know always readily 

 separable. 



CERATINA VIRIDULA Smith. 



Female. — Paraiso, Canal Zone, Panama, February 8, 1911 (Busck). 

 Smith describes only the male; the female is like a small O. laeta 

 Spinola, but there is a transverse white spot on the black apical 

 margin of clypeus. Ducke makes this species a synonym of C. laeta., 

 but I consider it quite distinct. 



CERATINA BUSCKI, new species. 



Male. — Length nearly 4.5 mm. Head and thorax brilliant golden 

 green ; abdomen blackish marked with yellowish-green, the first four 

 segments each having a green band, most distinct and brilliant on the 

 second; clypeus (except upper lateral margins, which are green and 

 have very large punctures), small cuneiform lateral face-marks, 

 labrum (except a dusky dot on each side) and very large mark on 

 base of mandibles, ivory-color; green parts of face with very large 

 punctures ; antennae long ; scape short and black ; flagellum dull fer- 

 ruginous, darkened above; sculpture of thorax ordinary, area of 

 metathorax granular; tegulae piceous; wings dusky, stigma and 

 nervures fuscous; apical plate of abdomen with a broad but distinct 

 apical angle, the sides rounded (style of G. atrata H. S. Smith, but 

 the median angle much less salient) ; femora mainly green (anterior 

 and middle ones black in front) , tibiae and tarsi ferruginous. 



Taboga Island, Panama, June 10, 1911 (August Busck). Also one 

 from the same locality, Feb. 22, 1912 (Busck). 



Related to such species as C. lucidula Smith, C. muelleri Friese 

 (which Ducke thinks should not be separated from lucidula) and C. 



