444 OK EXOTIC rOSSOEIAL HTMENOPTEEA. 



the thorax thej are fine anteriorly, gradually becoming coarser 

 towards the back, till on the apex of the mesonotum, scutellum, 

 and postscutellum they run into longitudinal striae, and on the 

 median segment form a coarsely rugose eribrate surface ; clypeus 

 and base of the mandibles densely pubescent with silvery pile ; 

 a short vertical furrow between the bases of the antennae, and a 

 central longitudinal carina from the middle of the mesonotum to 

 the anterior margin ; the tibiae of the legs broad, coarsely rugose 

 on the outside ; abdomen with the bases of the segments slightly 

 constricted. Intense black, the scape of the antennae in front 

 yellow; the posterior margin of the prouotum, an oblong large 

 spot in the middle of the scutellum, the posterior margins 

 narrowly of segments 1-4 of the abdomen, a broad band in the 

 middle of the 2nd segment, and a spot on either side in the 

 middle of the 3rd segment, brick-red ; the apical two segments 

 fringed posteriorly with thin golden pubescence ; wings f usco- 

 hyaline, slightly iridescent, nervures and tegulae testaceous. 



2 . Length 12 millim. ; exp. 22 miliim. 



Sah. Sumatra. 



Allied to C. tridentatus, Smith, from Australia, but smaller, 

 and differing considerably in the puncturing and sculpture of the 

 head and thorax. In tridentatus the head and thorax anteriorly 

 are smooth but not shining, and the median segment is only 

 longitudinally striate at base, not roughly eribrate. 



Div. 2. Abdomen petiolate. 



Ceabeo (Ehopalum) Beookii, sp. nov. 



2 . Head, thorax, and abdomen opaque, very closely and 

 finely punctured ; the clypeus, front above the antennae, the cheeks 

 behind the eyes, and the sides of the thorax with thick silvery 

 pubescence ; the extreme apical margin of the mesonotum with 

 short longitudinal, and the postscutellum and base of the median 

 segment with oblique divergent striae, the last subtruncate, with 

 an enclosed triangular space at the base, a central longitudinal 

 furrow, and an oblique outwardly diverging furrow on the 

 posterior angles ; legs with the intermediate and posterior tibiae 

 broad and somewhat spinose; abdomen, the petiole constricted 

 at apex ; the apex of the abdomen acute. Black ; the scape of the 

 antennae, a line on the pronotum, a large and a small spot at the 

 outer angles of the scutellum, with the tibiae and basal joints of 

 the tarsi of all the legs on the outer side yellow, apical joints 



