CRABBO. 



32: 



585. Cra'bro spinifrons, n. sp. 



2 c? . Head and abdomen smooth and shining ; mesonotam and 

 scutellum finely and the enclosed space at the base oi' the median 

 segment coarsely longitudinally striate ; the front above the 

 an'tenniB deeply sulcate, with a pointed lamella projecting from the 

 vertex over the sulcation. Black, a line on the pronotum, the 

 tubercles, a spot on each side of the scutellum, a line on the post- 

 scutellum, and lateral diagonally placed spots on segments 1-4 of 

 the abdomen, with a transverse line at the base of the 5th segment, 

 yellow; legs black, variegated with yellow; wings hyaline and 

 iridescent, uervures and tegulae dark testaceous. 



Hab. Tenasserim. 2 d ■ Length 7-S ; e.qh 11-13 mm. 



586. Craljro auricomus, n. sp. 



2 . Head very broad, quadrate, flat above, very finely punctured 

 and densely pilose on the clypeus, the front, and behind the eyes ; 

 pronotum transverse, smooth and shining, with indications of a 

 medial longitudinal groove ; mesonotum anteriorly transversely, 

 posteriorly obliquely striate, the stria; very fine and regular; 

 scutellum and postscutellum smooth, slightly punctured ; median 

 segment pubescent at the sides and finely transversely striate, the 

 enclosed space reticulate, with faintly marked short longitudinal 

 carina} ; legs smooth, the tibia; and tarsi with very few spines ; 

 abdomen smooth and shining. Black ; the base of the mandibles, 

 the flagellum of the antenna;, the scutellum, a li^ne on the post- 

 scutelliim, the legs, and broad irregularly margined fasciae across 

 the middle of abdominal segments 1-5 above, yellow ; beneath the 

 2nd, 3rd, and 4th segments are yellow, with subapical, lateral, 

 lengthened black spots ; wings hyaline, nervures and tegulae testa- 

 ceous yellow. 



Bah. Assam. $ . Length 14; exp. 24 mm. 



587. Crabro quadriceps, n. sp. (PL II, fig- 7.) 



2 . Head square above, the cheeks behind the eyes remarkably 

 flattened ; the clypeus pilose, its anterior margin with a remarkable 

 double keel in the middle ; the front, the sides of the head, vertex, 

 and occiput closely and finely punctured ; thorax more coarsely 

 punctured, very sparsely on the scutellum, which is prominent, 

 smooth, and shining ; median segment short, with a very steep, 

 almost vertical slope to the apex, slightly concave posteriorly and 

 coarsely reticulate ; legs short, stout, the tibiie dilated, the posterior 

 tibia; with short stout spines on the outer side ; abdomen smooth 

 and shining, punctured, the punctures on the basal segment larger 

 and coarser than on the following segments. Black ; the clypeus 

 and the inner orbits of the eyes with dense silvery pile ; the scape 

 and basal two joints of the flagellum of the antenna;, a large spot 

 on each side on the pronotum, the tubercles, the apex of the 

 femora, the tibia; and basal joint of the tarsi of all the legs, and a 

 lengthened lateral spot in the middle of segments 1-5 of the 



