516 NEW SPECIES OF PHYTOPHAGOUS HYMENOPTERA, 



The genus Oryssus is remarkable on account of the structure 

 of the ovipositor, the paucity of veins in the wings and the 

 insertion of the antennae beneath the clypeus close to the mouth. 



Dr. Sharp* gives an illustration of an American species (0. 

 Sayi) and a diagram of the head showing the peculiar structure. 



TENTHREDINID^E. 



L0PHYRID1N.E. 



Clarissa divergens, Kirby. 



Mr. W. F. Kirbyf founded the genus Clarissa on a single 9 

 specimen which I sent him: I have since then been fortunate 

 enough to capture four more specimens of what I consider to be 

 without doubt the same species; they all, however, differ from 

 Kirby's description in having only 11 joints in the antennae 

 instead of 12, one of the terminal joints being absent; three of 

 the specimens also have the first three joints of the antennae more 

 or less rufo-testaceous. The front legs vary from rufo-testaceous 

 to whitish, passing to black on the femora and basal portion of 

 the tibiae of one specimen; the base of the 1st joint of the hind 

 tarsi is in some rufo-testaceous; and the lighter parts of the legs 

 are of a lighter shade than the general colour of the insect. 

 There is also in all the specimens a small creamy white spot on 

 each side of the 2nd segment of the abdomen. The labrum is 

 whitish. 



These specimens, as well as the type, were all taken on the 

 blossom of a small tree or shrub growing at the edge of the scrub 

 in January and February. 



Clarissa atrata, n.sp. 



<f. Long. corp. 5-5 - 5 mm.; exp. al. 11-12 mm. 

 Shiny black; 2nd, 3rd and sometimes 4th abdominal segments 

 partially or wholly luteous; four front legs except the coxae, and 



* Cambridge Nat. Hist., Insects, Part i., p. 506. 

 t Ann. Mag. Nat. Hist. Ser. 6. Vol. xiv., p. 46, July, 1894. 



