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 Ehopalocera and Heterocera when on these trips. 

 It takes too much out of one to work day and night. 



In the ProccciJiiKji^ of the Ainerican Academy of ArU and Sciencet^, 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 Z()(dt)(ihchen Anzcu/er for March 19th, Dr. Krauss discusses 

 the curious tubercle which is present on the 1st dorsal segment of 

 Pocciloceru^i 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 is a 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 theEntom. Soc. of London, Mr. Waterhouse 

 exhibited a tube which formed the entrance to a nest of a Tii;i<ma, sent 

 from Singapore by Mr. H. N. Ridley. It was about fifteen inches in 

 length, of a resinous substance, but more Avaxy toward the end, which 

 was spoon-shaped. He also exhibited a portion of the resinous mass 

 formed Avithin the trees by these bees, and stated that one of these 

 masses sent from Penang by Mr. Ridley weighed 151bs. The true 

 nest of the Trit/ona consists of an irregular mass of cells filled with 

 honey, quite distinct from the resinous formation. 



;e^EYIEWS AND NOTICES OF BOOKS, 



Interesting chapters from Indiana. — An interesting little work, 

 Gleaninys from Nature, by W. S. 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 Blahophanes ferruyinella, 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 cloti., 

 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 Moore, F.E.S., 12,. 

 Lower Road, Rotherhithe. February, 1900. 



