be MECOPTERA AND PLANIPENNIA 
Genus Berotha Walker (1860). 
Walker, Transact. Ent. Soc. Lond. (2) V, p. 184 (1860). 
Antennae much longer than in Osmylus, reaching at 
the pterostigma, basal joint very long and thick. 
Wings elongate, with acute, somewhat curved tips and 
a deep arched excision in the exterior margin below it, 
especially distinct in the forewing. Only one row of gradate 
veins in the disc. Legs long and very pilose. Abdomen of 
the o with long app. sup. Small species. 
This elegant and curious genus is represented in Insu- 
linde by: 
Berotha piepersi Weele (/ Q). 
(Plate 4, fig. 18, ©). 
Berotha piepersii Weele, Notes Leyd. Mus. XXIV, p. 214 (1904). W. Java. 
Antennae yellow, reaching about the pterostigma of the 
forewing, basal joint very long, longer than the head, darker 
at the exterior side, with long yellowish hairs. Head 
yellowish, with two dark spots on the vertex. Palpi shining 
black, with yellow annulations. 
Prothorax as long as broad, yellow in the middle, the 
sides darker, with a brown villosity. Meso- and metathorax 
coloured about as the prothorax, but with less villosity. 
Breast brown with blackish villosity. Legs rather long and 
slender, yellowish white, with erected, long, dark grey 
villosity on tibiae and tarsi, the femora with a whitish villo- 
sity. Abdomen reddish brown, with a brown villosity. The 
male with a pair of long, pointed app. sup. 
Wings hamatiform, dark grey, with many yellow brown 
hairs especially in the forewings and at the apical border. 
Crossveins black, the longitudinal veins yellowish with 
dense black points. Costalveins of forewings black and 
furcated, in the hindwings very short and nearly pointlike. 
Pterostigma long, yellow, with dark points. In the forewings 
there are many dark points along the cubiti, lying at the 
furcations of the vein, and one interrupted line of gradate 
Notes from the Leyden Museum, Vol. XX XI. 
