in aggregation of some of the enzyme. This has previously been suggested to take place in the housefly, Musca vicina (Ohnishi, 1958) and the blowfly, Calliphora (Mum & Bufton, 1973). When gels of the 50 %-satd. fraction were incubated with tyrosine (0.002~) only one band of activity was discernible and this corresponded to the slowest running catecholase band (Fig. le). The result shows that th...

The apposition eyes of two diurnal insects, Sarcophaga bullata (Diptera) and Anax junius (Odonata), have been examined with the electron microscope. In the latter case only the rhabdom is described. The rhabdom of the fly consists of a central matrix and seven rhabdomeres, one for each retinula cell. The rhabdomeres show an ordered internal structure built up of transverse tubes, hexagonal in c...

Myiasis is a parasitic infection caused by dipteran larvae settling in living tissue and organs. Infestation is generally found in tropical and rural areas, where interaction with animals is common. It is diagnosed based on the evidence of the existence of dipteran larvae in tissues and organs. When planning the treatment, identifying the type of larvae is as important as identifying the infect...

Acknowledgments The VENICE Project would like to take this opportunity to thank all the gatekeepers, contact points and members of the work packages for their contributions to this report. The time generously provided by each person in answering the questionnaire and subsequent follow-up queries is greatly appreciated. We also would like to thank Dr Filia Antonietta for her support in questionn...