540 
MR. H. N. RIDLEY ON THE 
26. Monedula signata {Linn.). 
Vespa siguata, Linn. Syst Nat. e<l. x. i. p. 574, n. 14 (1758). 
A common South- American species. 
Very common on the sand-hills, where it makes its burrow. 
27. PoMPILUS NESOPHILUS, 11. Sp. 
Long. corp. 10 millim. ; exp. al. 15 millim. 
Female. Dull black, first three segments of abdomen, the 
sides of the fourth, and the under surface of the hiud tibiae red. 
Wings smoky, a little lighter and subhyaline on the hind wings 
and towards the base of the fore wings. 
Head large, eyes hardly extending to the base of the jaws, 
face rather more strongly punctured than the vertex ; clypeus 
short, slightly emarginate ; labrum short, transverse : eyes nearly 
parallel, front ocellus forming the apex of a rectangle with the 
hinder ocelli, the two latter rather wider apart than the space 
between these ocelli and the eyes ; second joint of the antennae 
half as long again as the third. Pronotum falling in front to the 
neck in a short rounded curve, rather broader than the meso- or 
metanotum ; the metanotum is furnished with a small pro- 
minence on each side near the base. 
Second and third cubital cells of nearly equal size, the second 
recurrent nervure striking the third cubital cell in the middle. 
Spines of the legs as usual. 
Much resembles F. sobrinus , Blanch., a Chilian species, in which, 
however, the thorax is verdigris-green above, instead of black. 
Taken flying over paths in the centre of the island, not common 
and difficult to catch. 
28. Taciiytes inoonspjcuus, n. sp. 
Long. corp. 6-8 millim. 
Black, clothed with a very flue silvery pile (that on the upper 
part of the face with a slight golden appearance in certain lights), 
otherwise most conspicuous on the sides of the abdomen, towards 
the extremities of the segments ; thorax and scutellum shining, 
with very numerous small punctures, not very close together : 
metathorax r u go sely -punctate ; tegulae testaceous ; wings clear 
hyaline, with a strong violet iridescence ; nervures dark brown. 
Closely allied to T. iridipennis, Smith, from Ega, but in that 
species the thorax is longitudinally striated, and the tips of the 
tarsi are ferruginous. 
