ZOOLOGY. 587 



Williston (S. W. )• Contribution to a knowledge of Nortli American SyrpMdse. Proc. 

 Am. Phil. Soc, v. 20, pp. 279-332. 



L^dopters. 



Berg (F. E. ). Schmetterlingsbuch. Ganzlich ungearbenitet und vermehrt von H. von 



Heiumann, Neu durcbgesehen und erganzt von Dr. Wilh. Stendel. 6 Aufl. 1-3. 



Lief. Stuttgart, Jul. Hoffmann. 1882. (4to. each M. 1.50.) 

 Distant (W. L.). Rhopalocera Malayana; a Description of the Butterflies of the 



Malay Peninsula. Parti. London, 1882. (4to., 28 pp., 4 pi.) 

 Grote (Augustus Eadcliff). An Illustrated Essay on the Noctuidae of North America, 



with a colouy of butteriies. London, Van Voorst, 1882. (8vo.) 

 Heylaerts (F. J. M.,) fils. Essai d'une Monographie des Psychides de la Faune 



Enrop6enne, pr6c6d6 de considerations g^n^rales sur la famille des Psychides. 1, 



Partie. Ann. Soc. Entomolog. Belg., t. 35, pp. 29-73. 

 Kirby (W. F.). European Butterflies and Moths. With 61 colored plates, based upon 



Berge's Schmetterlingsbuch. London, Cassell, 1882. (4to., 486 pp., 35 s.) 

 Lindeman (K.). Coleophora Tritici, ein neues schadliches Insect. Bull. Soc. Imp. 



Nat. Moseou, t. 56, pp. 39-42. 

 Eiley (C. V.). Probable Sound Organs in Sphingid Popae. Amer. Naturalist, v. 16, 



pp. 745, 746. 

 Eiley (C. V.). The Silk- worm ; being a brief Manual of Instruction for the produc- 

 tion of Silk. Withillnstr. Washington, 1882. (8vo., Dept. of Agriculture. Special 



Eeport No. 11, 2d edition.) 

 Scudder (Samuel H.). Fragments of the coarser Anatomy of Diurnal Lepidoptera. 



Psyche, v. 3, pp. 263-275 ; 295-298 ; 307-309. 

 Selvatico (Silvestre.). Sullo sviluppo embrionale dei Bombici. Con7tav. Bollet. di 



Bachicoltura. Anno 8, pp. 79-115. 

 . Sur le d6veloppement embryonnaire des Bombyciens. Avec 1 pi. Jour, de 



Microgr.,6. Ann., pp. 167-172,- 216-223. 

 Zimmermann (Carl). Die Variabilitat der Schmetterlinge in ihren verschiedenen 



Entwickelungsstadien und der biologische'Werth von Form, Farbe, und Zeinchnung. 



Verhandl. Ver. f. Naturwiss. Hamburg, 5 Bd., pp. 58-62 ; 66-68. 



A new order of Myriapods. 



In 1865 Messrs. Meek and Worthen described a peculiar genus of 

 articulates based on a specimen found in the carboniferous forma- 

 tion of Illinois and named it Palseocampa. They referred the new type, 

 with some hesitation, to the class of worms. Other specimens have 

 been lately examined by Mr. S. H. Scudder, and that naturalist came 

 to the conclusion that the old type was neither a worm nor caterpil- 

 lar, but really belonged to the group of Myriapods, and represented in 

 that group a previously undifferentiated order, which has been named 

 Protosyngnatha. Mr. Scudder was led by the study of this type to the 

 conclusions, (I) that in this ancient Myriapod, as old as any with which 

 we are acquainted, we find dermal appendages of an extraordinary high 

 organization^ more complicated than anything of the sort found in liv- 

 ing arthropods ; and, (2) that at the early period when it lived the 

 divergence of structure among Myriapods was as great as it is to-day. 

 The bearings of these facts are discussed at length by Mr. Scudder. 



