40 PEOCEEDINGS OF THE NATIOITAL MUSEUM vol.78 



white spot of second tergite triangular ; hind and middle coxae with 

 piceous stains dorsally. 



Type-locality. — Rio Trinidad, Panama. 



Type.— Co-t. No. 42198, U.S.N.M. 



One specimen taken March 20, 1912, by August Busck. 



39. POLYCYRTUS (POLYCYRTUS) MAJOR Cresson 



Related to duplicatus but larger (female about 14 mm.) and dif- 

 fering from the above description of duplicatus further as follows: 

 Malar space not constricted, mouth as broad as narrowest width of 

 face ; occipital carina weakly convergent above with posterior margin 

 of eye, not reaching hypostomal carina but not recurving and very 

 low at lower end. Propodeum not more than a half longer than 

 broad, more or less punctate or punctate-rugose medially behind 

 carina and laterally; apophyses very long, slender, curved; meta- 

 pleurum strongly punctate-rugose; hind inner calcarium little more 

 than a third as long as basitarsus. 



Mandibles yellow except apex and lower margin; annulus on 

 flagellar joints 5-10; scutellum black with only apex and carinae 

 yellow ; median stripe of propodeum broader, the transverse mark on 

 carina confluent with lateral stripes; subbasal yellow spot trans- 

 versely subtriangular and confluent with lateral yellow margin ; coxae 

 white with a black stripe dorsally, femora and trochanters piceous 

 above, tibiae more or less infuscate above and toward base; wings 

 yellowish or a little infuscate ; stigma largely fuscous. 



Male. — Annulus on flagellar joints 8 or 9 to 14 or 15; propodeum 

 less distinctly sculptured, apophyses shorter and hardly curved; 

 subbasal yellow spot of second tergite not angulate posteriorly ; legs, 

 especially middle tibiae, darker. 



The above notes are based on two females and three males as fol- 

 lows : A metatype female from Mexico ; one female from Rio Trini- 

 dad, Panama (March 30, 1912, August Busck) ; one male from San 

 Rafael, Jicoltepec, Mexico; and two males collected in Mexico by 

 Salle. The last two were received from the Paris Museum, to which 

 one is returned. 



40. POLYCYRTUS (POLYCYRTUS) SEMLA.LBUS (Cresson) (new combination) 



Mesostenus semialbus Ceesson, Proc. Ent. Soc. Phila., vol. 4, 1865, p. 30, 

 female, male. 



41. POLYCYRTUS (POLYCYRTUS) MONTEZUMA Cameron 



Polycyrtus montezuma Cameeon, Biol. Cent. Amer,, pt. 42, 1885, p. 234, pi. 

 10, fig. 6, male. 



There is nothing in the descriptions of these two species to distin- 

 guish them. Before me are four female specimens from Mexico that 



