302 hymenoptera. 



30. Tetralonia Duvaucelii, 



Macrocera Duvaucelii, St. Farg. Hym. ii. 98. 1 1 <? . 

 Hab. India (Bengal). 



31. Tetralonia elegans. 



Male. Length 5 lines. — Black, the clypeus, labrum and man- 

 dibles yellow, the latter ferruginous at their apex ; the flagellum, 

 tegulse, nervures of the wings and the apical joints of the tarsi 

 bright ferruginous ; the face and legs have a silvery white pu- 

 bescence ; that on the disk of the thorax pale fulvous ; the wings 

 hyahne, very faintly clouded at their apical margins ; the base of 

 the abdomen has a little pale fulvous pubescence, the three 

 following segments have on their basal margins a fascia of short 

 white pubescence, the third fascia broad, neai-ly covering the 

 segment, the fifth segment entirely covered ; the apical segment 

 covered on each side with fuscous pubescence ; beneath, the 

 margins of the segments rufo-testaceous and ciliated with white 

 pubescence. 



Hab. India. (Coll. W. W. Saunders, Esq.) 



32. Tetralonia Floralia, 



Male. Length 5 lines. — Black, the face thinly covered with 

 a long griseous pubescence, the labrum having a long beard of pale 

 yellow hairs ; the clypeus yellow, the antennae longer than the 

 body, the joints subarcuate. Thorax, the disk shining, sti'ongly 

 punctured, thinly clothed with pale yellow pubescence, the wings 

 hyaline, the nei-vures and tegulae rufo-testaceous ; the legs have 

 a dense pale glittering silvery pubescence, the apical joints of 

 the tarsi bright ferruginous. Abdomen ovate, convex, the base 

 coarsely punctured, the apical margins of segments testaceous 

 and having a fringe of pale jnibescence ; the base having some 

 long pale haii-s, and the entii'e abdomen a short scale-hke pu- 

 bescence. 



Hab. North China (Shanghai). 



33. Tetralonia fasciata. B.M. 



Male. Length 4^ lines. — Black, the clypeus, labrum and tips 

 of the mandibles yellowish- white ; the flagellum fulvous beneath ; 

 the pubescence on the face below the antennae white ; above, as 

 well as on the disk of the thorax, it is pale fulvous, and on the 

 cheeks and thorax beneath griseous ; the wings fulvo-hyaline, the 

 nervures ferruginous, the tegulae testaceous ; the apical joints of 

 the tarsi ferruginous, the legs have a bright yellowish-white pu- 



