582 SCIENCE PROGRESS 



and ceases development in the third instar : the male under- 

 goes two or three further ecdyses. Both sexes up to the third 

 instar undergo a remarkable hypermetamorphosis as follows : 

 First Instar : primary hexapod migratory larva. Second Instar : 

 apodous, cystoid, fixed larva. Third Instar : hexapod Melolon- 

 thoid mouthless larva. S. R. Christophus and F. W. Cragg 

 {Ind. Journ. Med. Res., 9, 445-63) describe the so-called 

 " penis " in Cirnex lectularius and the sexually modified seg- 

 ments of the female. In the latter sex there are two apertures 

 — a copulatory orifice and one for oviposition. E. E. Green 

 has completed his standard work on the " Coccidse of Ceylon " 

 in issuing the fifth volume of that treatise. The distribution 

 of the organ of Berlese among the Clinocoridse is discussed by 

 K. Jordan in the new publication Ectoparasites (1, part iv). 

 This structure has been supposed to be an organ of copulation, 

 receiving the spermatozoa direct from the male and passing 

 them on to the body-cavity whence they ultimately reach the 

 oocytes. J. H. Kershaw and F. Muir {Ann. Ent. Soc. Am., 

 15, 201-12) describe the genitalia of the auchenorhynchous 

 Homoptera. The gonopore lies between the eighth and ninth 

 sterna, or at the base of the ninth sternum, and the three pairs 

 of gonapophyses are homologous in the two sexes. J. Edwards 

 {Ent. Month. Mag., 1912, 202-7) gives a list and a tabular 

 synopsis of the British species of the Jassina division of the 

 Jassidse, and in the same journal (p. 191) F. Laing records one 

 interesting addition to the fauna of Britain in Phylloxera 

 salicis Licht. from bark of willows in Norfolk. 



Orthoptera and Derniaptera. — Part III of the Faune de 

 France {1922) is devoted to these two orders, and is contributed 

 by L. Chopard. It forms a useful and profusely illustrated 

 synopsis of the insects with which it deals. B. P. Uvarov 

 {Ent. Month. Mag., 1922, 277) records nymphs of a Phasmid, 

 possibly those of a species of Menexenus, at an altitude of 

 16,500 ft. in Tibet, where they were found during the recent 

 Mount Everest Expedition. The same author {ibid., 211) records 

 Stauroderus vagans (Eversm.), a grasshopper, new to the fauna 

 of Britain, from the New Forest. F. Brocher {Ann. Soc. 

 Ent. Fr., 91, 156-64) contributes some new researches on the 

 circulation of the blood in Periplaneta. 



Hytnenoptera. — C. T. Gimingham {Ent. Month. Mag., 58, 

 226-8)records the parasitisation of the IsnY^dof Bruchnsrufimanus 

 by the Braconid Sigalphus luteipes Thorns, in Warwickshire. 

 Out of three lots of the Brnchus totalling over 1,700 individuals, 

 the parasitism ranged from 51-1 per cent, to 72-3 per cent., 

 the Bracond reducing the number of beetles reaching the 

 imago by more than half. H. Donisthorpe {Trans. Ent. Soc, 

 1 92 1, 307-11) enumerates insects and other Arthropoda which 



