CURRENT NOTES. 311 



effacement of the genus Blplonychus in favour of Sphcsrodema. 

 Lapoi'te founded the genus Diplonychus, with two subgenera, 

 Diplonychus and Sphcerodema. Subsequently, in the same essay, 

 he discovered that the type of the former belonged to the latter ; 

 consequently the subgenus Diplonyclms falls ; but the subgenus 

 Sphcerodema is only a part (now actually the whole) of the genus 

 Diplonychus, which I think ought to stand. 



H. J. Hansen (6) has published another of his valuable mono- 

 graphs on the orders of the Myriapoda, which, though not strictly 

 entomological in the usual restricted sense of the word, are indis- 

 pensable to anyone interested in the phylogeny of the Arthropoda. 

 The treatment of the descrij^tions and the illustrations are in 

 Dr. Hansen's usual well-known style. I presume the date of 

 publication is May or June, 1903, but it is surprising that a 

 journal of the reputation of the 'Quarterly' has indicated the 

 date neither on any page nor on any plate, nor on the cover of 

 the separate copy before me. 



Another part of the voluminous " Species des Hymenopteres 

 d'Europe " has appeared (10a). In this J. J. Kieffer continues 

 the account of the Cynipidse, the present fascicule comprising the 

 Zoophaga, the Allotrinse, and Eucoilinse being discussed, together 

 with a part of the Figitina3. The first named was termed 

 AphidivoraB by Giraud, since its representatives live in the larval 

 state in the body of Aphidse or Coccidse. They are found so far 

 throughout the palfearctic region, while a few species have been 

 discovered in North America. They doubtless occur also in 

 other regions. The Eucoilinae (Eucoelinfe) are, so far as is 

 known, parasitic on the larvae or puparia of Diptera, or of the 

 larvae of Coleoptera. The Figitinse also are parasitic on the 

 larvae of Diptera, Coleoptera, and Neuroptera. The treatment is 

 on an ample scale, consisting of systematic descriptions of all 

 stages so far as possible, analytical keys, and biological notes, 

 thus making the work of high interest not only to hymenopterists, 

 but also to rhynchotists and dipterists, and, in a less degree, to 

 specialists in other orders. 



The first volume contained nearly 700 pages, with 27 plates ; 

 the second, so far as completed, nearly 300 pages, with 9 plates. 

 The work is published in Paris, at the Libraire Scientifique 

 A. Hermann. 



E. P. Eelt has published a thoroughly practical paper on 

 the literature of American Economic Entomology (7), read before 

 the last meeting of the Association of Economic Entomologists. 

 Dr. Felt calculates that the enormous number of 12,163 articles 

 on economic entomology in America alone have been issued since 

 1860 ; this including newspaper articles, reports, bulletins, &c., 

 and being probably below the total. He places great stress on 

 the educational value of newspaper articles carefully written by 

 competent men, not only as a counteraction to the uninformed 



