I'JIS] AliTandfr — AVir \eolropical Aniocliiiii 45 



Miilillc log, fomiir, 7.1 mm.; tibia, 7.4 mm.; tiirsus, 5.C mm. 



Iliiul Irg, " 8.1mm.; " S.i mm.; " G.7 mm. 



Iload: ro.striim yellowish-brown; palpi black; anU-niin-, first sfgmrnl bright 

 luiucy-yellow at the base, abruptly light brown; renuiinder of the antenna; dark 

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

 portion ; front dark brown; the caudal port i( n of the vertex, and the oe<ii)Ut lighter, 

 more yellowish. 



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

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

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

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

 dle of the sclerilc, 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 pni'scutal pale median vitta, lobes brown, darkest laterally; scutellum bright 

 orange; post-notum yellowish with indistinct brown stripes; pleura? shiny orange- 

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

 coxiB and trochanters light yellow; femora pale yellow witli the tip broadly brown, 

 and with a brown post-mc<lial annulus, nvost prominent on t)ie 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 H bright yellow; stigma rountled, dark brown, large; an indistinct brown 

 cloud around the deflection of Ri+s. Venation, see figure d. 



.Vbdomen: tergtmi light yellow, apical segments more brownish, hypupygium 

 brown. 



Ilolotype, cT, Canal Zone, Panama, Central America. (C. 11. Bath, coll.) 



Type in U. S. National Museum Coll. (No. 15,1:^6). 



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 stri|)e; abilo- 

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



cf Length, 5 mm.; wing, 5.3 mm. 



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



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



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

 Front, vertex and occiput dark brown. 



Thorax: prothorax light yellow; mesothorax: pra^scutum orange-yellow with a 

 dark brown median mark, broadest anteriorly, beginning near the ceplialic 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-cxterior 

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

 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 

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



