POLTBIA. — ICAfilA. 385 



rounded and bulging ; petiole of abdomen subapically splierical 

 above ; the base of the 2ud segment shortly petiolate, the remaining 

 segments depressed ; the petiole not quite so long as the rest of 

 the abdomen. Eufescent brown; the mandibles, the clypeus, 

 except a brown vertical streak, a line on the scape of the antennae 

 in front, the anterior and posterior margins narrowly of the 

 pronotum, the postscutellum, a spot on the tegulse, two medial 

 broad lines on the median segment, the sides of the latter, a spot 

 at the base and an irregular mark on the lower half of the meso- 

 pleurse, the coxte and the femora beneath, the apical half of the 

 tibiae, and the apical joint of the tarsi with the claws, a line on 

 each side of the petiole at base, and a large spot on each side of 

 the 2nd and 3rd abdominal segments, yellow ; the spots on the 

 2nd segment about the middle, those on the 3rd segment at the 

 base and very often hidden by the margin of the 2nd segment ; 

 wings hyaline, iridescent, brownish along the costal margin of the 

 fore M'ing. 



Hah. Burma ; Tenasserim ; China. ^ . Length 13-14 ; exp. 

 30-32 mm. 



672. Polybia sumatrensis, Sauss. Rev. et Mag. Zool. 1855, p. 374. 



^ . Very slender ; the median segment with a less steep slope 

 than in the other Oriental species ; the medial groove broad and 

 more shallow, finely transversely striate ; antennae and legs pro- 

 portionately longer. Very dark brown or black ; the mandibles, 

 clypeus, the inner orbits of the eyes and the sinus, the lower half 

 of the cheeks, anterior and posterior margins of the prothorax 

 narrowly, the tegulse, the anterior margins of the scutellum and 

 postscutellum, two broad parallel stripes on the median segment, 

 an irregular mark on the mesopleurae, the metapleurse, a streak on 

 each side of the median segment, and the apical margins above of 

 the petiole and following three segments of the abdomen, yellow ; 

 legs yellow, the intermediate and posterior pair variegated with 

 brown above and with the apical four joints of the tarsi entirely 

 brown ; wings hyaline, the costal margin of the fore wing lightly 

 yellow. 



Hah. Pegu Hills, Burma ; Tenasserim ; Sumatra. ^ . Length 

 11-12; ex]). 30 mm. 



Genus ICARIA. 



Vespa, pt., Fabr. Ent. Si/st. ii, p. 25,3 (1703). 

 Polistes, pt., Fadr. Syst' Piez. p. 269 (1804). 

 Epipona, Lejjel. {nee Latr.) Ilyin. i,p. 540 (1836). 

 Ivhopalidia, pt., Guv.r. Voy. Coq., Zool. ii, pt. 2, p. 206 (1838). 

 Antbreneida, pt., White, A. M. N. H. vii, p. 321 (184 .). 

 Icaria, Sauss. Mon. Guep. Soc. p. 22 (1853). 



Type, /. maculiventris (Guer.). 

 Range. Africa, Asia, and Australia, 

 voii. I. 2 



