10 PROCEEDIN'GS OF THE jSrATIOlSTAL MUSEUM vol. 72 



tate and wrinkled anteriorly, puncturing practically obsolete on pos- 

 terior half ; pronotuni coarsely punctate laterally, a few smaller punc- 

 tures just behind head, a band of 4-5 rows across middle, and a single 

 line of fine punctures along posterior margin; scutellum coarsely 

 punctured from margin to rather high up on sides, but smoother 

 medially, and almost impunctate on anterior disk; there is no wrin- 

 kling of the upper surface as in nigritula; clavus impunctate ; pleura 

 coarsely punctate, the propleura only interiorly and in a narrow 

 transverse median band, metapleura smooth near posterior angles; 

 sternites punctate along incisures, 6 broadly rounded anteriorly, with 

 a few transverse wrinklings. Length 1.8 mm. 



Holotype. — Male, Brazil, F. Sahlberg (Stockholm Mus.) ; para- 

 type, Pernambuco (Berlin Mus.). 



MEGARIS ATRATULA Stal 



Megaris atratuJa Stal, C, Hemiptera Mexicana, Ent. Zeit. (Stettiu) vol. 

 23, 1862, p. 84 [Tabasca]. 



Fusco-castaneous, dorsum polished ; antennae and tibiae paler ; front 

 margin of vertex rather deeply emarginate medially, rounded angu- 

 late each side of the emargination, then slightly concave to eyes, 

 disk of vertex with the usual radiate wrinklings but practically 

 impunctate; pronotum glossy, with numerous punctures laterally, 

 a compact band of 4—5 rows just behind head, a diffuse band of 4-5 

 rows across middle, and a single line along hind margin; scutellum 

 with numerous distinct punctures near antero-lateral angles, and 

 numerous finer punctures elsewhere except on anterior disk, which 

 is polished and crossed by a distinct band of punctures narrowed to 

 2 rows at middle; clavus punctate; pleura (partly hidden) appar- 

 ently entirely coarsely punctate, sparsely so on propleurum ; sternites 

 feebly punctate along incisures, 6 subangulate anteriorly, all the 

 others slightly shortened medially. 



Holotype. — Female, Tabasco (Stal) (Stockholm Mus.) ; Belize 

 and Rio Hondo, British Honduras, Blancaneau (British Mus.). 



MEGARIS SEMIAMICTA, new species 



Dark castaneous, tibiae, tarsi, and antennae, testaceous. Head 

 impunctate, the anterior margin only slightly emarginate medially, 

 also slightly concave laterally. Punctures of pronotum distributed 

 in a single row around almost the entire margin; in a narrow band 

 behind head and in another across the disk; remainder of surface of 

 pronotum polished. Dorsal and lateral outlines as in Figures 2 and 

 16. Punctures of scutellum most evident on sides, nearly obsolete 

 cliscally ; otherwise as described in key. Propleurum almost impunc- 

 tate anteriorly, increasingly punctate posteriorly until hind margin 



