55 



or a closely allied species, was found only in small numbers on a second 

 visit, though the same species was abundant in Larat, especially in 

 sago and betel-nut palms. P. vastatrix was present and also another 

 dark-coloured hopper, the eggs of which were heavily parasitised by 

 several species of Pipuncidus as well as by Dryinids, The larvae 

 of a Lycaenid and a small moth were found feeding on a white scale. 



In New Guinea sugar-cane was found to be badly bored by a moth 

 nearly allied to Diatmea striatalis. Its eggs and larvae are parasitised 

 by a Tachinid, which again is heavily parasitised by a small Hymenop- 

 teron. P. vastatrix was found on sugar-cane, but was kept down by 

 •egg- parasites very similar to those imported into Honolulu from 

 'Queensland and Fiji. 



At Laloki, Papua, the sea-island cotton was infested with two species 

 of cotton stainer. The cotton boll-worm, Heliothis obsoleta {armigera) 

 was scarce. 



In the last appendix, Mr. Muir describes his second visit to New 

 'Guinea to obtain a fresh supply of Ceromasia sphenophori, having 

 .arranged for an intermediate breeding station in Queensland. 

 Ultimatelv it was found necessary to establish a second breeding 

 ^station in Fiji, and from here the Tachinid was successfully transferred 

 to Honolulu. On this journey five new sugar-cane leaf -hoppers of 

 the genus Perkinsiella were discovered. 



Enslin (E.). Die europaischen Diprion {Lophynis) Arten. [The 

 European Species of Diprion {Lophyrus).] — Naturivissenschftl. 

 Zeitschr.f. Forst- u. Landwirtschft,SluUgart, xiv, no. 1, January 

 ° 1916, pp. 1-20, 1 plate. [Received 25th January 1917.] 



It is pointed out that the generic name Lophyrus, Latr., 1802, is 

 [preoccupied, having been given to a genus of Mollusca by Poli in 1791. 

 It must therefore be replaced by Diprion, Schr. The various species 

 •of this genus are not easily recognisable by forest entomologists from 

 the existing literature, though there are 15 distinct European forms. 

 This systematic paper enables the females to be accurately determined, 

 though more difficulty will be experienced with the males, in which in 

 some cases good characters for differentiation have not yet been found. 

 No key to the larvae is given, the reader being referred to a previous 

 work of the author's (Die Blatt- und Holzwespen, Stuttgart, 1914, 

 Ed. iii of "Die Insekten Mitteleuropas, insbesondere Deutschlands"). 

 Little work has been done on the Diprion larvae since the time of 

 Hartig, and as his work is still serviceable, the present paper contains 

 a few remarks only on such larvae as Hartig either did not describe, or 

 described inaccurately. The larva of D. pallipes, Fall, often has the 

 head entirely black and is liable to be mistaken for that of D. simile or 

 D. sertifer, though it may be distinguished by the colour of its body 

 and by its small size. The larva of D.fuscipenne is one of three species 

 living on the fir, the two others being D. polytomum and D. abieticola, 

 which live on Abies excelsa. The larvae of D. paUidtim vary in colour, 

 but in a given colony the individuals are usually of the same colour. 

 The darker forms resemble D. frutetorum, but differ in the large black 

 spines being visible to the naked eye. It is still considered impossible 

 to distinguish between the larvae of D. virens and D. laricis. Repeated 

 breeding experiments have shown that some of the differences given 



