79 



ON SOME NEW CENTRAL AMEEICAN VESPID^. 

 By p. Cameron. 



(Concluded from p. 64.) 



Zethiis (Didymogastra) pimctinodus, sp. nov. 

 Black, densely covered with short white pubescence ; the lower 

 third of the clypeus, a line on the base of the thorax, two spots, wider 

 than long, on the apex of the scutellum, two longish lines, straight on 

 the inner, roundly narrowed on the outer side, a broad lanceolate line 

 on the sides of the abdominal petiole, incised above near the apex, a 

 mark on the top of the base of second segment, rounded on the outer 

 sides, incised on both sides in the middle, a lanceolate line, the nar- 

 rowed end at the base, on the sides of the narrowed base of the second 

 segment at the apex, and a line on the apex of second segment, distinct 

 above, indistinct below, pale yellow ; the raised apices of the second 

 and third segments fuscous ; apical joints of the antennae orange-yellow 

 below. Wings tinged with fuscous, distinctly clouded at the apex. ^ . 

 Length, 12 mm. to end of second segment. 



Acapulco, Mexico. 



Apex of autennse thick, forming a roll, the two end joints curved, 

 thick, clearly separated. Clypeus sparsely punctured, densely covered 

 with depressed white pubescence ; the front and vertex closely, dis- 

 tinctly punctured ; the ocelli thus •.-, the hinder separated from each 

 other by a greater distance than they are from the anterior, and by a 

 slightly greater distance than they are from the eyes. Clypeus longer 

 than usual, compared with the width ; the apex with two short teeth. 

 Apex of pronotum raised into a narrow horny keel, of a darker colour 

 than the yellow line at its apex. Mesonotum closely punctured, with- 

 out keels or furrows ; the scutellum more strongly but not so closely 

 punctured, the centre depressed at the apex. Post-scutellum narrowed 

 to a broad rounded point. Metanotum broadly depressed in the middle, 

 the sides rounded ; it is transversely striated. Abdominal petiole not 

 quite so long as the thorax, distinctly narrowed at the base, less so at 

 the apex ; it is shiniug, distinctly but not strongly or closely punc- 

 tured. The narrowed base of the second segment is about one-fourth 

 of its length ; the segment shining, densely pruinose, the apex flat, 

 smooth, the horny reflexed part wide ; on the third segment it is 

 narrower, and not so strongly reflexed. Tibise testaceous in front. 



The peduncle of the second abdominal segment is shorter 

 than it is in the other species described in this paper. Belongs 

 to Saussure's Section A. 



Zethus {Didymogastra) erythrog aster, sp. nov. 

 Black ; the abdomen, except the narrowed basal part, red ; the 

 under side of the antennal scape, a small spot over each antenna, 

 a slightly larger one in the inner edge of eye incision, a small spot 

 near the top of outer orbits, a narrow line along the keel on base of 

 pronotum, two spots on scutellum, narrowed and rounded on inner 

 side, a small mark below and in front of tegulse, a narrow line. 



