PLANIPENNIA FROM JAVA. 233 



Basal joint stout, with a blackish brown spot at the tip 

 on the exterior side. Thorax and abdomen yellowish green. 

 Prothorax broader than long and with rounded front angles ; 

 a broad and deep transverse furrow 

 in its apical third. Legs yellowish ; 

 claws brown and with a broad basal 

 tooth. Wings hyaline with greenish 

 longitudinal nervures. All the cross 

 veins in the fore wing, the costal 

 ones and some of the basal ones 

 in the hindwing brown to blackish pjg 5^^,^^,^^^^^^^,^^^ ^^p 

 brown. Series of gradate veins paral- 

 lel ; the inner row more or less incomplete ; 4-6/6 in the 

 forewing; 8-4/5-6 in the hindwing. 



Length of forewing 11 — 12 mm; hindwing 10 — 11mm. 



1 specimen Oct. 1909, 2 specimens Nov. 1909, 1 spe- 

 cimen Dec. 1909, 1 specimen Oct. 1910, 1 specimen Nov. 

 1910 and 1 specimen Dec. 1910; all from Semarang. 

 Type in my collection, cotypes in the Museum of Leyden. 



Chrysopa jacohsoni Weele. 



V. D. Weele, Notes Leyd. Mus. XXXI, p. 65, pi. 4, 

 fig. 26 (1909). 



Jacobson, Tijdschr. Ent. p. 100 (1912). 



This species was described by v. d. Weele from 5 speci- 

 mens reared from eg^^ November 1907, in Batavia by Edw. 

 Jacobson. With great interest I looked for the species 

 amongst the material before me, but I only saw two freshly 

 emerged specimens. Several specimens that agreed well 

 with the two in every respect with exception of a strongly 

 indicated, reddish brown streak on the exterior side of the 

 two basal joints of antennae, troubled me very much. In 

 the description of the species v. d. Weele lays stress on the 

 unspotted basal joint of antennae; but at last I came to 

 the conclusion that all the specimens belonged to one species, 

 viz. Chr. jacohsoni. I think that the five specimens from 

 which the species was described, have been killed before 



Notes from the Leyden Museum, Vol. XXXV. 



