112 THE ENTOMOLOGIST’S RECORD. 
collect the Heterocera, but appears not to have been able to have found 
the right man. This is very regrettable, as one cannot possibly give 
full attention to both Rhopalocera and Heterocera when on these trips. 
It takes too much out of one to work day and night. 
In the Proceedings of the American Academy of Arts and Sciences, vol. 
xxxv., March, 1900, Scudder gives us another of his useful series of 
generic revisions. This time it is the genus Derotmema, one of the 
Oedipodidae. The species of this genus are desert-haunting creatures, 
living on and about sage-bush, often simulating it in colour. It is 
confined to the western half of the United States. He describes four 
new species, thus bringing the number of known forms of the genus 
up to eight. 
In the Zoologischen Anzeiger for March 19th, Dr. Krauss discusses 
the curious tubercle which is present on the 1st dorsal segment of 
Poecilocerus sokotranus, Burr. This tubercle has the appearance of a 
small yellowish knob, and at first sight might be easily taken for a 
foreign body of some sort, possibly a fungus. But Dr. Krauss shows 
that it isa part of the animal, and probably a very important character. 
He illustrates his remarks with four drawings, which show well the 
remarkable open space in the suture of the elytra, which makes room 
for the organ, and exposes it to the light. It is present on every 
specimen which has been taken, in both sexes, but is unknown in any 
other Orthopteron. Dr. Krauss suggests that possibly it may be a 
luminous organ. 
At the last meeting of the Hntom. Soc. of London, Mr. Waterhouse 
exhibited a tube which formed the entrance to a nest of a Triyona, sent 
from Singapore by Mr. H. N. Ridley. It was about fifteen inches in 
length, of a resinous substance, but more waxy toward the end, which 
was spoon-shaped. He also exhibited a portion of the resinous mass 
formed within the trees by these bees, and stated that one of these 
masses sent from Penang by Mr. Ridley weighed 15lbs. The true 
nest of the Zriyona consists of an irregular mass of cells filled with 
honey, quite distinct from the resinous formation. 
FIR EVIEWS AND NOTICES OF BOOKS. 
INTERESTING CHAPTERS FROM Inprana.—An interesting little work, 
Gleanings from Nature, by W. 8. Blatchley, the State Geologist of 
Indiana, U.S.A., contains among the fifteen chapters into which it is 
divided, two that are very interesting to entomologists: (1) In that 
entitled ‘‘ Indiana caves and the animals which inhabit them,” are 
descriptions of blind beetles, cave crickets, &c., as well as an account: 
of the discovery of the Tineid Blabophanes ferruginella, Hbn., in the 
depths of Wyandotte Cave, interesting subjects that call for the atten- 
tion of the lepidopterist. (2) ‘‘ Katydids and their kin,” thirty-one 
species of the orthoptera of Indiana being figured and numerous details. 
of their life-histories given. The volume is well bound in silk cloth, 
consists of 348 pp., 15 full-page half-tone plates, and 100 illustrations 
in the text, and is published by the Nature Publishing Co:, Indiana- 
polis, Ind., U.S.A., post paid 5s. 3d.—Harry Moorz, F.K.S., 12, 
Lower Road, Rotherhithe. February, 1900. - 
