1913] Alexander — New Neotropical Antochini 51 



4. Small species (Length, cf 5 mm.; wing less than 5; rostrum less 

 than 4 mm.) ; abdominal selerites uniform throughout, the apices 



not darkened. (Eastern Brazil) meridionalis, sp. n. 



Larger species (Length, cf, 6-6.5 mm.; wing more than 5; rostrum 

 over 5 mm.); abdominal selerites pale in the middle but dark at 

 the bases and apices of the selerites; apice of the sternites narrowly 

 darkened. (Mexico — Eastern Brazil.) centralis sp. n. 



Toxorrhina fiavida 



sp. nov. 



Light yellow; basal segments of the antennae paler than the flagellum; 9 oviposi- 

 tor with very slender acicular valves; basal approximation of Cu and 1st A slight. 



9 . Length, 6, 6.7, 8.2 mm. Wing, 4.8, 5, 5.4 mm. Rostrum, 3.4, 3.7, 3.8 mm. 

 Foreleg, femur, 3.4, 3.8, 4 mm.; tibia, 4, 4.2, 4.5 mm. 

 Middle leg, " 3.6,4, — mm.; tibia, 4.5, 3.6, — mm. 

 Hind leg, " 3.3, 3.6, 4.2 mm.; tibia, 3.5, 3.8, 4 mm. 



Upper valve of 9 ovipositor, 1.9, 2.0 mm. 



Head: rostrum rather short, medium brown; antennae, basal segments varying 

 from light yellow to yellowish-brown; flagellar segments dark brownish-black. 

 Front, vertex and occiput yellowish-grey. 



Thorax: cervical selerites rather dark brown; mesonotum, praescutum rich 

 yellowish-brown, with an indistinct narrow paler median line which becomes obso- 

 lete before the suture and in some specimens is bordered on either side by a very nar- 

 row brown line; lateral margins of the sclerite dull yellowish, especially bright in 

 front of the pseudosuture; scutum, lobes brownish-yellow, median line greyish; 

 scutellum greyish-white suffused with brown, post-notum dull yellow tinged with 

 brown caudally. Pleurae uniformly dull orange-yellow. Halteres, stem yellow, 

 knob slightly darker, tinged with brown. Legs: coxae and trochanters yellow, the 

 latter rather tinged with brown; femora dull brownish-yellow, not darkened at the 

 tip; tibiae uniform yellowish-brown; tarsi brown. Wings, veins light brown, in 

 costal region more yellowish, subhyaline. Venation (See fig. h.) Sci ending 

 about opposite the origin of Rs; deflection of Mi^ 2 much shorter than that segment 

 of M]_> between cross-veins r-m and m; cell 1st M 2 elongated; basal deflection of 

 Cui rather near the fork of M. Basal approximation of Cu and 1st A slight, about 

 one-fourth of Cu beyond the arculus. 



Abdomen: tergum rich dull yellow, the caudal margin of each sclerite broadly 

 brown; sternum uniform light yellow. Ovipositor of the 9, upper valve, base 

 slender, tip acicular, very elongate; lower valves likewise very slender. 



Holotype, 9 Igarape-assu, Para, Brazil, Feb. 1, 1912. (H.S. Parish, coll.) Para- 

 type, 9 Igarape-assu, Para, Brazil, Feb. 3, 1912. (H. S. Parish, coll). Paratype, 

 9 Igarape-assu, Para, Brazil; Feb. 7, 1912. (H. S. Parish, coll.) Paratype, 9 

 Igarape-assu, Para, Brazil; Feb. 4, 1912. (H. S. Parish, coll.) 



Types in Cornell University, except paratype Xo. 3, in author's collection. 



Toxorrhina meridionalis sp. nov. 



Brown; antennae uniform in color; abdomen uniformly light brown; 9 ovipositor 

 with the lower valves stout, blade-like; basal, approximation of Cu and 1st A more 

 extensive. 



