232 
dissolve it, I have come to the conclusion that it is undoubt- 
edly part of the abdomen. It is present I believe on most, 
if not in all of the species. Under the microscope it is seen 
to be composed of a fibre-like substance, arranged in irregu- 
lar hexagonals. The described species are 
1. — S. elongata, Roger, Berl. Ent. Zeit., 1863, p. 212. 
Panama. 
2. — S. louisiance, Roger, l.c., p. 211. Louisiana. 
3. — S. Lewisi, sp. nov. Japan. 
4. — S. Gwidlachi, Roger, l.c, 1862, p. 253, Cuba 
5. — S. Goclefroyi, Mayr, Sitzb. d. Mathem. Naturw., Wien. 
liii., p. 516. Schiffer Islands, Pacific. 
6. — S, mandihularis, Smith, Journal of Ent., 1860. Brazil. 
7. — S. lyroessa, Roger, B.E.Z., 1862, p. 251. Ceylon. 
8. — S. capitata, Smith, Jour. Linn. Soc., VIII. p. 76, pi. iv. 
fig. 5. New Guinea. 
9. — S. clypeata, Roger, B.E.Z., 1863, p. 213. Louisiana. 
10. — S. memhranifera, Emery, Ann. dell’ Acad. d. Aspirant! 
Nat., 1869. Italy. 
The genera most nearly related to Strumigenys are 
Epitritus, Emery from Italy, and Orectognathus, Smith from 
New Zealand. 
The species here described comes nearest S. elongata and 
8. louisiancB. It was found by Mr. George Lewis under 
stones. 
Postscript.— Since writing the above, I have received a 
paper by Prof. A. Forel, (Mittheil. der Schw. Entom. Ges., 
vii.. No. 5) wherein that author gives descriptions of two 
species {S. Friderici-Mulleri and S. Smithii) from Brazil, 
and also a Synopsis of the workers of the species (except 
8. capitata, Sm.). 
Special Meeting, Monday, March 29th, 1886. 
Mark Stirrup, Esq., F.G.S., in the Chair. 
Mr. Alfred Brothers exhibited a number of micro- 
scopic objects with the new Lantern Microscope recently 
presented to the Society by Mr. Wilde. 
