XXX11 
presence by a slightly crumpled appearance of the leaf, which commenced 
to droop. On taking up the carrot no root-fibres are observed, the slender 
portion being dry and brittle, and in the centre is found the larva. He 
observed that all his neighbours’ gardens were infested in a similar manner. 
Mr. Druce said that the carrots in his brother’s garden at Kingston were 
destroyed by the same larvee. 
Papers read, é&c. 
Mr. H. W. Bates read descriptions of three new species of Cicindelide. 
Two of these pertained to the genus Oxygonia of Mannerheim, and he 
described them as O. albiteenia and O. cyanopis, from New Granada. The 
third was Cicindela Crespignyi, from Borneo. Mr. Bates entered into an 
examination of the affinities of Oxygonia, and agreed with the position near 
Odontocheila assigned to it by Baron Chaudoir in his recent Catalogue. 
Mr. C. O. Waterhouse communicated a paper “ On the black Species of 
Cantharis with red heads and filiform antenne.” 
Prof. Westwood read descriptions of new species of exotic Papilionide. 
Having used the term ‘sub-species,’ Prof. Westwood explained that a 
sub-species he considered as a modified form of a species as originally 
created. Mr. Jenner Weir objected to the use of the term ‘created’ in 
scientific communications. 
Baron De Selys-Longchamps communicated a paper under the title 
« Apercu statistique sur les Névropteres Odonates.” In this memoir he 
enumerated the number of known species of dragon-flies under their 
respective genera and subgenera. He estimated the total number at 
about 1850. 
Mr. S. S. Saunders read a paper intituled “ Strepsiperidum, pro ordine 
Strepsipterorum Kirbii olim, mihi tamen potius Coleopterorum Familia 
Rhipiphoridibus propinqua, Monographia.” 
Mr. Saunders divided the groups into four subfamilies, according to the 
several Hymenopterous tribes with which they are associated; namely (1), 
the true Stylopide, found with the Mellifera of Latreille; (2) the Myrme- 
colacidxe, with the Formicide ; (3) the Xenide, with the social wasps; and 
(4) the Pseudoxenide, with the solitary wasps and Fossores; these latter 
tribes coinciding more or less in their habits and economy, and requiring 
about eight or nine months (from one year to the next) to attain maturity ; 
involving a corresponding detention for their Strepsipterous dependents ; 
whereas the true Xenide, consorting with the social Vespide, must. be 
reared from their primary hexapod condition in from thirty to forty days. 
- such being the term within which the larve of the social Vespide attain 
the imago state; the females of the latter hybernating with those of Xenos, 
which produce their larval brood the ensuing year; whereas the Pseu- 
doxenid, after their long-protracted larval condition as aforesaid, must 
