142 THE ZOOLOGIST. 
Mr. R. Bowdler Sharpe read a note on Heliodilus Soumagnei, Gradidier, 
of which a specimen had recently been acquired by the British Museum. 
Mr. Sharpe likewise pointed out the characters of a second species of the 
genus Dromeocercus, from Madagascar, proposed to be called D. Seebohmi. 
A communication was read from Mr. A. Boucard, containing descriptions 
of two supposed new species of South American birds. 
Dr. F. Day read some remarks on the occurrence at Southend of the 
Little Gurnard, Trigla peciloptera.—P. L. Scuater, Secretary. 
ENToMOLOGICAL Society or Lonpon. 
February 5, 1879.—Sir Joun Luszocs, Bart., M.P., V.-P.R.S., &c., 
President, in the chair. 
Mr. H. J. Elwes exhibited a collection of Lepidoptera from a small 
island at the mouth of the Amoor River, in Siberia. 
Mr. C. O. Waterhouse exhibited a specimen of Gasteracantha Cam- 
bridgei, a remarkable spider from West Africa, recently described by 
Mr. A. G. Butler. 
Mr. G. C. Champion exhibited a specimen of Harpalus oblongiusculus, 
taken by Mr. J. T. Harris, in May last, at the Chesil Bank, Weymouth. 
The Secretary read a note from Mr. A. H. Swinton, calling attention 
to a passage in a paper by Mr. Wood-Mason, published in the last part of 
the Society’s ‘Transactions’ (part iv., p. 265), wherein the author asks, 
“ How is it that nobody has ever heard the Mantide stridulate?” Mr. 
Swinton referred to Kirby and Spence’s ‘Introduction to Entomology’ 
(7th ed., p. 493), where it is stated, on the authority of M. Goureau, that 
Mantis religiosa, “when alarmed and haying put itself in an attitude of 
defence, rubs the sides of the abdomen against the interior borders of the 
wings and elytra, so as to produce a noise like that of parchment rubbed 
together.” 
The Rev. A. E. Eaton remarked, apropos of the homologies of wing- 
nervures (see Proc. Ent. Soc., 1878, p. lvi.), that in the anterior wings of 
most of the Ephemeride, three primary groups of longitudinal nervures 
could be distinguished, the foremost proceeding directly from the thorax ; 
the hindermost issuing from, or terminating in, a curved or angulated 
prominent fold interjacent between the first group and the hinder part of 
the base of the wing close to the wing-root; and an intermediate group 
which does not attain to the thorax, but either terminates in the wing- 
membrane close to the base of the wing, or is annexed to the hinder veins 
of the first group. The equivalents of the intermediate group in their 
ultimate ramifications constitute the ‘apical forks” of Mr. M‘Lachlan’s 
system. Mr. Eaton exhibited drawings of wings of Trichoptera and 
Tineina, in which the three groups of nervures were distinguished by colour, 
