POLYCYETUS. 23& 



Prothorax black, except the prosternum and a line on the pronotum, which are yellow. 

 Mesonotum black; the scutellar keels, the apex of the scutellum, and the sutures, 

 yellow. Pleura? yellow, except the part surrounding the tubercles under the yellow 

 tegula?. Metathorax yellow, except the suture between it and the mesothorax ; a black 

 line (dilated on either side at the transverse keel, thus forming a cross) going down 

 from this to the apex, and another line going down from each spiracle, black. The 

 metathorax entirely impunctate, the transverse keel straight, the spines short and 

 obtuse. First abdominal segment narrow, impunctate, a black mark (rounded at the 

 base, transverse and broader at the distal end) at the apex ; base of the second segment 

 black, the black dilated at the apex laterally, a large black mark occupying the greater 

 part of the segment ; this mark is transverse at the apex, the base projecting on either 

 side into a fish-hook-like process, which is nearly as long as the body of the mark ; the 

 other segments have a broad black band at the base. Sheath of the ovipositor black, 

 pilose, scarcely one half the length of the abdomen. Legs immaculate honey-yellow ; 

 the femora of a darker fulvous colour, the tips of the tarsi black. Wings with a 

 smoky tinge ; stigma testaceous, lighter in the centre. 



8. Polycyrtus fulvofemoratus. (Tab. IX. fig. 22, $ ; and Tab. X. fig. 5, 

 metanotum and base of abdomen.) 



Niger, flavo-varius ; scutello flavo ; pedibus Mvo-flavis ; coxis posticis flavis, nigro-lineatis ; femoribus posteri- 



oribus supra fusco-lineatis. $ . 

 Long. 16 millim. ; terebra 5 millim. 



Eab. Guatemala, San Geronimo (Champion). 



Antenna? nearly as long as the body, microscopically pilose. Head with the 

 mandibles entirely, and above the antennae, except the orbits broadly, black ; frontal 

 spine short, thick, obtuse, a roundish tubercle at its base ; eyes distinctly margined. 

 Prothorax black, except the prosternum and a broad line on the edge, which are yellow ; 

 the sides hollowed, transversely striated. Mesonotum black ; two large lines on the f *. 

 lateral lobes, the tegula? and the scutellar keels and the scutellum entirely, blaek-; v< 

 pleurae and the sternal sutures black, the latter distinct, deep, longish ; a transverse 

 line at the base of the metanotum (continued down the sides), a broad line down the 

 centre, and one from the spiracles (joined to the central line by a transverse one), black ; 

 the transverse line at the base and the one from the spiracles cover the furrows ; the 

 transverse carina? distinct. Spines longish, stout ; the sides projecting as a broad tubercle 

 in front of the hind coxa?. First abdominal segment black, except at the apex ; second 

 segment with a broad transverse band at the base, the sides projecting at the apex (in 

 front of this is a large black mark with the base indented by a triangular indentation), 

 the apex truncated ; third segment with a large black mark at the base ; the other 

 segments almost entirely yellow. There is a broad line on all the coxa?, a line on the 

 trochanters and over the hind femora, black ; the apices of all the tarsi are blackish. 



biol. CBNTK.-AMEE., Hymenopt., November 1885. 2 hh 



