NEW GENERA AND SPECIES OF CHALCIDIDZE. 229 
classification and index of the examples of mimicry quoted 
(883-479). One of the notable mechanical features in the text 
is the copious index of 85 pp. 
British lepidopterists will probably be interested in Neweomb’s 
detailed observations on the habits of a United States Chryso- 
phanus (18). Maxwell-Lefroy discusses at some length the 
Castor Silkworm, Attacus ricinit (which is probably the domesti- 
cated form of A. cynthia). The larvee differ from all other silk- 
producing Indian larve in that they do not feed on mulberry, 
but on castor leaves; the cocoon is not closed and is not reel-able 
in the same way as other kinds. On the other hand, the cocoons 
do not require to be killed to prevent the egress of the moth, as 
one end is closed only with converging loops of silk (14). 
ON TWO NEW GENERA AND SEVEN SPECIES OF 
CHALCIDIDH (EUCHARINA) FROM BORNEO. 
By P. Cameron. 
ANCYLOTROPUS, gen. nov. 
3. Antenne twelve-jointed, the joints elongated, pilose. Parap- 
sidal furrows distinct, complete. Scutellum large, triangular, the 
apex prolonged into a broad spine, two-thirds of the length of the 
basal part, keeled down the centre, the apex slightly incised. Thorax 
rugose. Abdominal petiole long, cylindrical, as long as the rest of 
the abdomen, flat above, the sides margined. The right mandible 
with four teeth, the basal not so distinct as the others; the outer 
tooth less, but dilated at the base. Abdomen projecting upwards. 
Stigmal branch short, thick. Face raised in the centre, the raised 
part narrowed into a keel below; the clypeus with a large fovea on 
either side above. The head is broader than it is long, and is a little 
wider than the thorax. 
In the table of Ashmead (Mem. Cairn. Mus. i. 269) this genus 
runs to near Psilogaster, which has the antenne eighteen jointed, 
and the apex of the scutellum is rounded. The form of the scutel- 
lum in Ancylotropus is pretty much as in Saccharissa, but that 
genus has the antenne eighteen-jointed. 
Ancylotropus cariniscutis, sp. nov. 
Head and dilated part of abdomen black, the thorax dark blackish 
blue, with coppery and violaceous tints, the antennal scape, pedicle, 
palpi, tegule, and legs, except the cox, yellowish testaceous, the 
flagellum of antennz dark testaceous at the base, the apical joints 
blackish ; wings hyaline, the nervures testaceous. ¢g. Length, 
4 mm. 
Kuching, Borneo (John Hewitt, B.A.). 
