NEW GENERA AND SPECIES OF CHALCIDIDiE. 229 



classification and index of the examples of mimicry quoted 

 (383-479). One of the notable mechanical features in the text 

 is the copious index of 85 pp. 



British lepidopterists will probably be interested in Newcomb's 

 detailed observations on the habits of a United States Oiryso- 

 phanus (13). Maxwell-Lefroy discusses at some length the 

 Castor Silkworm, Attacus ricini (which is probably the domesti- 

 cated form of .-1. cynthia). The larvae differ from all other silk- 

 producing Indian larvae 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 GENEKA AND SEVEN SPECIES OF 

 CHALCmiDiE (EUCHARIN^) FROM BORNEO. 



By p. Cameron. 



Ancylotropus, gen. nov. 



^ . Antennae 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, cyhndrical, as long as the rest of 

 the abdomen, fiat 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 IdcIow ; 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 Psilofiaster, which has the antennae 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 antenniie 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, tegulse, and legs, except the coxae, yellowish testaceous, the 

 tlagellum of antennte dark testaceous at the base, the apical joints 

 blackish; wings hyaUne, the nervures testaceous. ^. Length, 

 4 mm. 



Kuching, Borneo (John Hewitt, B.A.). 



