ZOOLOGICAL NOTES ON COLLECTING IN BOBNEO. 369 



to the collecting department, and good work they did. One 

 day we wandered up the stream for an hour or two, chiefly after 

 dragonflies and beetles. Some small fish were disturbed as we 

 paddled along, enjoying the cold clear water seldom above our 

 knees, and hoping they might be of use I offered our small 

 friends a cent for every fish they caught. With the aid of a 

 small stick 18 in. long, and a small loop of fibre at the end, 

 they proceeded to stalk these fish, and succeeded in catching 

 seven or eight in about half-an-hour ! The fish appear to 

 be a species of Crossochilus vittatus, Blgr. They also secured 

 some prawns (Atya moluccensis, De Haan). The big Gasteropod 

 Ampullaria ampullacea was found here ; it is common all over 

 Sarawak. A small bivalve (Corbicula moussonii) was plentiful in 

 the river ; it seems to be a local species. 



At one spot on the bank we came across some little 

 Vespids flying up and down in the sun ; they appear to be 

 Ischnogaster ornatifrons. 



The Khynchota were not of much interest, except perhaps a 

 black Cercopid Ectemnonotum nitidicolle, a little yellow-spotted 

 species named by Mr. Distant as Lora inclyta, Walk., a rather 

 rare Pentatomid, Hypencha ophthalmica, Stal, and the Eeduviid 

 Sminthocoris singularis. 



As is usual in such localities, dragonflies were the most 

 attractive insects, and many good species were secured. 



Among the Agrionidce obtained was an example of Amphi- 

 lestes macrocephala, which appears to be always rather rare, and 

 only found some way inland. The others obtained here have 

 been identified by Dr. F. F. Laidlaw as follows : — Disparoneura 

 verticalis, Aciagrion crinorubellum, and Pseudagrion sp. n. ? 



Collecting in the stream at this place produced several lovely 

 Calopterygids — the beautiful green Neurobasis chinensis and the 

 common Vestalis amcena, which also frequents the jungle away 

 from streams ; the black-winged Dysph&a dimidiata was noted 

 as scarce ; only two specimens of Euphcea incequipa, which I 

 have taken on similar mountain streams in different places in 

 Sarawak. Another pretty Euphcea taken was E. tricolor, a 

 beautiful insect with greenish-blue patch on wings flashing 

 brightly in the sun. 



The other Calopterygids Dr. Laidlaw kindly identifies as : — 



