of the Familij Tahaiiid^. 371 



In the marking of the wings and the colouring of the 

 al)domen and thorax tliis species is typical of the genus in 

 sensu strido, though the tooth of the third antennal joint 

 is unusually small, it might be almost described as a spine, 

 M-hich is shorter than the basal portion of the antennae below 

 it, there are fine black bristles on its outer edge, and it ends 

 in a sharp point; the last four divisions of the joint are 

 together about the length of the first division, and are equal 

 in size, the last one ending in a point, being a little longer, 

 all bordered with fine black pubescence ; the first two joints 

 are yellow with black hairs, which are most conspicuous on the 

 upper corner of the second joint ; the third yellow, darker at 

 the tip. Face yellow, shining under the antenna3 ; the palpi 

 yellow, curved, with black pubescence ; the frontal callus 

 brown, shining, oval, reaching the eyes, with its apex on the 

 anterior border towards the vertex. Tiiorax yellowish brown 

 Avith a brown band; the shoulders, anterior border, and the 

 part behind the brown band yellow-haired ; the scutellum 

 brown. The first two segments of the abdomen yellow with 

 a brown median stripe; tlie third and fourth brown, each 

 with a golden-yellow-haired band on the posterior border, 

 equal in width to the brown part ; the fifth with a narrow 

 border of yellow hairs; the sixth brown; the underside yellow, 

 brown at the sides and on the apex. Legs pale yellow, the 

 hind legs browner. 

 Length 8 mm. 



Dichelacera grandis, ? , sp. n. 



Three females from Belize, OrangeWalk, British Honduras, 

 Sept. 1899. Presented by the Colonial Secretary. 



A large species distinguished from cervicornis by the shape 

 of the band of the wing. 



Face yellow, with an obscure black spot under the antennfe ; 

 the palpi yellow, long, curved, with black pubescence ; the 

 liairs under head scanty and yellow. Antennae reddish 

 yellow, the third joint black from the annulations, long, with 

 a long tooth ; tiie first joint tsvice as long as the second ; the 

 third stout, the tooth reaching the first annulation ; all the 

 annulations about equal in size. Forehead pule yellowish ; 

 the frontal callus dark brown, shining, almost square, a raised 

 line runs from it to the vertex, which is dusky in colour. 



The thorax yellowish, golden-haired, with a brown band in 

 the centre; scutellum brown. Abdomen reddish brown, the 

 first segment jjaler witii golden hairs, the anterior borders of 

 tlie other segments brown with reddish posterior borders 

 covered with fulvous hairs; underside yellowish, the a])ex 



