Opaque, covered with a white iiiicroscopic puljeseence. The pedi- 

 cel and the first funicular joint of the antennae very long, of equal 

 length, the latter as long as the following two joints united, these being 

 subequal and longer than the succeeding joint; the club is stout, clearly 

 separated, the joints, except the last, wider than long, the last conical, 

 longer than wide. Thorax alutaceous, the parapsidal furrows distinct; 

 the scutellum behind with a row of distinct foveae; down its centre is 

 a smooth line, at its apex is a curved rufous keel, behind which are some 

 indistinct depressions. On the metanotum is a central and three lateral 

 keels, the central being the longer, the spece between them depressed. 

 Propleurae with a row of large foveae round the apex. Mesopleurae 

 obscurely, irregularly striated, the apex with a large deep depression, 

 deepest in the middle with the sides oblique. Metapleurae irregularly 

 reticulated. The abdomen long, fully four times as long as the thorax, 

 irregularly longitudinally striated, its basal segment keeled down the 

 middle, the striae becoming gradually weaker and are absent from the 

 apical two segments. The wings reach to the middle of the fourth seg- 

 ment; they are ciliated round the apex; the stigmal vein ends in a small 

 knob and is about one-third shorter than the marginal. Tegulae testa- 

 ceous. 



CHALCIDIDAE. 



1421 Spilochalcis spilosoma sp. nov. 



Black, largely marked with red and yellow on the head, thorax and 

 legs, the flagellum of the antennae fulvous, the third to eighth black abo- 

 ve, the scape yellow; wings hyaline; the femora with about sixteen small 

 black teeth. Female. Length 3 mm. San Marcos, Nicaragua. 



Head rufous, the antennal depression and centre of face black, the 

 outer edge of the antennal depression, the yellow extending to the eyes 

 on the lower half, an oblique triangular mark below each antenna, the 

 hinder edge of the vertex, the line interrupted by the ocelli and by the 

 furrow in the centre, and a line on the upper half of the outer orbits, 

 yellow; the occiput black. Mandibles rufous. Pronotum rufous; three 

 yellow lines in the centre, the lateral longer than the central. Mesonotum 

 rufous, a large transverse mark, with rounded sides, in the centre and 

 a smaller, longer mark compared with its breadth, on the base of the 

 lateral lobes, black. A small squarish mark in the centre at the base, the 

 sides of the middle lobe, the lines broader at the apex and a transverse 

 mark on the sides at the apex, yellow. Scutellum rufous, an interrupted 

 line at its base, a mark on either side at the apex, an indistinct line 

 between them, and the postscutellum, yellow. The notuni at its sides 

 black with a yellow mark on the inner side at the base and on the outer 

 at the apex. Metanotum black, with two rufous marks in the center at 

 the base. Pleurae black, a rufous spot under the tegulae and two yellow 

 ones in front of this spot; and there is a large rufous mark in the centre 

 of the mesopleurae. Metapleurae black. Head, pro- and mesonotum, scu- 



