The biology and control of Archips occidentalis (Wals.) and Tortrix dinota Meyr., minor pests of arabica coffee in Kenya, have been descriptionbed by Evans et al. (1968), who listed several species of parasites reared from A. occidentalis. This note records additional species of parasites reared from A. occidentalis, T. dinota and Lobesia aeolopa Meyr. during 1967 and 1968 at the Coffee Research Station, Ruiru, Kenya and corrects some errors in nomenclature and determinations that were made in the previously published list. Lobesia aeolopa Meyr. has been recorded on several occasions as a minor pest whose larvae attack the fruit of Coffea arabica in the Ruiru and Machakos districts of Kenya. Le Pelley (1959) lists several other East African host plants.
In many insects the developmental periods of the immature stages are related to the temperatures to which they are subjected. In other insects the developmental periods vary independently of temperature, sometimes due to the phenomenon of diapause (Andrewartha, 1961). The developmental periods of Glossina morsitans orientalis Vanderplank are of the former type, and puparial life increases from 4-5 weeks in the hot months of the year to 8-9 weeks in the cold months (Phelps, personal communication). However, not all the insect parasites of G. morsitans puparia appear to follow the same pattern. This was mentioned by Chorley (1929), who found a longer mean pupal period for both Mutilla glossinae and Thyridanthrax spp. during the winter months and again for the bombyliids from November to March.
During the past 20 years an increasing amount of research has been done on phlebotomines, but catching them has always presented difficulties. The reasons for this are the very small size and the habits of the sandflies, which usually prefer dark resting places and are active at night, or sometimes only at dusk. Besides driving them out of their resting places with tobacco smoke and catching them with a suction catcher, a net or a Nochtglas, Lewis (1967) caught sandflies on pieces of paper, which were smeared with castor oil, supported by cleft sticks and placed near animal burrows, rock crevices, etc. He caught the most specimens by this method.