1913] Alexander — New Neotropical Antochini 45 



Middle leg, " 7.4 mm.; 7.4 mm.; 5.6 mm. 



Hind leg, ' 8.1mm.; ' 8.2 mm.; 6.7 mm. 



Head: rostrum yellowish-brown; palpi black; antenna?, first segment bright 

 honey-yellow at the base, abruptly light brown; remainder of the antenna' dark 

 brownish-black. Front very narrow, the eyes almost contiguous at the narrowest 

 portion ; front dark brown ; the caudal portion of the vertex, and the occiput lighter, 

 more yellowish. 



Thorax: cervical sclerites elongated, brown. Prothorax very long, about as 

 long as the mesonotal praescutum and cylindrical, broadest basally, narrowing 

 cephalad to meet the narrow cervical sclerites; pronotum brownish-yellow. Meso- 

 thorax, praescuturn medially bright orange-yellow; on the sides brown; in the mid- 

 dle of the sclerite, beginning near the anterior margin, broadest in front, narrowed 

 to a point behind, is a dark brown mark; scutum pale yellow, a continuation of 

 the praescutal pale median vitta, lobes brown, darkest laterally; scutellum bright 

 orange; post-notum yellowish with indistinct brown stripes; pleurse shiny orange- 

 yellow with patches of grey bloom (possibly not normal). Halteres brown. Legs: 

 coxae and trochanters light yellow ; femora pale yellow with the tip broadly brown, 

 and with a brown post-medial annulus, most prominent on the hind legs; tibia 

 dull yellow, indistinctly darker at the extreme tip; tarsi brownish-black; legs 

 densely covered with long black hairs. Wings: hyaline, veins brown; veins C, 

 Sc and R bright yellow; stigma rounded, dark brow 7 n, large; an indistinct brown 

 cloud around the deflection of Pu +5 . Venation, see figure d. 



Abdomen: tergum light yellow, apical segments more brownish, hypopygium 

 brown. 



Holotype, cf , Canal Zone, Panama, Central America. (C. H. Bath, coll.) 



Type in U. S. National Museum Coll. (No. 15,126). 



This vigorous species is the largest member of the genus in the American fauna. 

 It may be readily recognized by its general yellow color (including abdomen) and 

 its large size. 



Teucholabis pleuralis sp. nov. 



Wings unhanded: thorax light yellow with a dark, narrow pleural stripe; abdo- 

 men without metallic reflexions; femora yellow, brown at the tip. 



d" Length, 5 mm.; wing, 5.3 mm. 



Middle leg, femora, 3 mm.; tibia,2.7 mm. 



Hind leg, " 4 mm.; " ,3.8 mm. 



Head: rostrum and palpi dark brownish-black. Antennae very dark brown. 

 Front, vertex and occiput dark brown. 



Thorax: prothorax light yellow; mesothorax: praescutum orange-yellow with a 

 dark brown median mark, broadest anteriorly, beginning near the cephalic margin, 

 becoming obsolete at about one-half the length of the sclerite; scutum and scu- 

 tellum orange-yellow, the lobes of the scutum brownish on the antero-exterior 

 angles; post-notum brownish-yellow with an indistinct brown median line. Pleurae 

 and sternum light honey-yellow, the former with a rather broad, dark brown band 

 beginning on the cervical sclerites, running obliquely above the base of the fore 

 coxae, through the halteres, and becoming confluent with the dark color of the 



