104 bulletin: museum of comparative zoology. 



Eyes a little longer than wide, slightly broader than the cheeks. 

 Anterior margin of cly pens strongly concave ; face shining, with rather 

 faint irregular sculpture and a median elevation from the clypeus 

 to the base of the antennae; malar space nearly as long as the third 

 antennal joint; front below the ocelli weakly arcuately aciculate; 

 ocelli in a nearly equilateral triangle, posterior pair almost twice as 

 far from one another as from the eye-margin; head above ocelli 

 highly polished, faintly coarsely shagreened ; head behind smooth and 

 polished. Antennae with the joints of the flagellum gradually growing 

 shorter, the second scarcely shorter than the first. Pronotum with a 

 strong transverse carina, just behind the raised anterior margin and 

 with a weaker one at the middle. Mesonotum short, no longer than 

 wide, coarsely shagreened; parapsidal furrows complete, bounded 

 interiorly on their posterior half by a raised line, the space between 

 not reticulate. Scutellum with a deep crenate groove at base. Pro- 

 podeum areolated as in S. manni, but with the superomedian and 

 petiolar areas separated and the surface more coarsely sculptured and 

 more shining. Petiole of abdomen stout, considerably curved above, 

 as long as the propodeum to the root of the hind wing, evenly widened 

 from base to apex where it is less than twice as wide as at spiracles; 

 coarsely striate above and on the sides. Second segment with a row 

 of short longitudinal striae at base, followed by an area of very faintly 

 impressed large punctures; apex polished. Following segments 

 smooth, polished. Propleura irregularly reticulate; mesopleura sha- 

 greened, with a small reticulate space in front above. Legs stout; 

 hind coxae shagreened, their femora three times as long as thick; none 

 of the tibise with denticles or tubercles. Recurrent nervure received 

 near the base of the second cubital cell : submedian cell barely longer 

 than the median; subdiscoidal vein interstitial. 



This species is somewhat similar in size and color to the Papuan 

 S. minutus Szep., but lighter, with the metathorax not black; the 

 mesothorax shows no transverse sculpture and the head is entirely 

 smooth. 



AcANTHORMius Ashmead. 



Proc. U. S. N. M., 1906, 30, p. 200. 



There is a small species in the material before me which is either 

 referable to this genus or represents a closely allied one. As will be 

 seen from the following description the general form and peculiar 

 structure of the abdomen are very similar to A. japonicus Ashm., but 



