6 PEOCEEDINGS OF THE NATION" AL MUSEUM vol. 72 



8. Scutellum without punctures along or paralleling anterior margin. 



hemisphaerica, new species. 

 Scutellum with punctures along anterior margin except at middle. 



peruviana Horvath. 

 ©. Scutellum lacking a transverse impressed line paralleling anterior margin 



at any part 10 



Scutellum with a distinct transverse impressed and punctate line close to 

 and paralleling anterior margin centrally, diverging from it laterally, or 

 with a shallower punctate line parallel to it and not diverging laterally. 



10. Front margin of vertex rounded ; scutellum with anterior disk nearly free 



from punctures ; dull black ; length 2 mm stalii, new species. 



Front margin of vertex distinctly emarginate; scutellum with an isolated, 

 narrow, transverse band of punctures near anterior margin ; shining 

 fusco-castaneous ; length 1.5 mm atratula Stal. 



11. Band of punctures across disk of pronotum consisting of only a single row 



in middle, the impression shallow ; outline from side as in Figure 16 ; 

 apical and subapical segments of antenna terete_semiamicta, new species. 

 Band of punctures across disk of pronotum consisting of about 4 rows at 

 middle ; apical and subapical segments of antenna distinctly fusiform ; 

 thicker than fore tibia ; lateral outline as in Figure 14 12 



12. Longer segments of antenna nearly as long as fore tibia, with long hairs, 



unicolorous (fig. 11) constricta, new species. 



Longer segments of antenna distinctly shorter than fore tibia, with short 

 hairs, bicolorous (fig. 7) antennata, new species. 



MEGARIS MAJUSCULA, new species 



Nearly twice the dimensions of the largest of the other species of 

 the subfamily before us and greatly exceeding them in bulk. Black, 

 extreme apex of second segment, short ring segment between the 

 second and third long ones, base and apex of subapical, and all of 

 apical segment of antenna whitish ; tarsi and apices of tibiae brown- 

 ish. Head shaped as in Figure 5, with impressed lines near margins, 

 and marking off tylus, almost impunctate; two long segments of 

 antenna of about equal length, apical segment shorter, more fusiform. 

 Pronotum with large punctures, more numerous near antero-lateral 

 margins, less numerous in an arcuate area somewhat behind head, 

 and also posteriorly near the humeral angles. Scutellum with large 

 punctures, almost evenly, but rather sparsely, distributed over its 

 whole surface; an irregular transverse impression across base of 

 scutellum about the length of head from anterior margin. Ventral 

 aspect as in Figure 3. Propleura punctate about like meso- and 

 meta-pleura; prosternal sulcus with ring punctures like the pleural 

 surfaces, the anterior ones in transverse furrows, meso- and meta- 

 sterna granulose, with similar punctures. Beak reaching to or 

 beyond hind coxae. Length 4.5 mm. ; width 3.75 mm. 



Holotype. — Female, Novaliches, Guantanamo, Cuba, December 16. 

 1916, C. T. Ramsden (Amer. Mus.). 



