Alopecurus myosuroides, Amsterdam
cephalic skeleton, mandibles
mouth field, spinulation
front and rear spiracula, dorsal
front and rear spiraculum, lateral
Arrhenatherum elatius, Nieuwendam: mandible of another specimen; the teeth are much more slender
The larva is described by Sasakawa (1961a). Front and rear spiraculum with over 10 papillae; the front spiraculum is indistinctly bifid, the rear spiraculum is fist-shaped (unlike the dagger-shaped rear spiraculum of Ch. milii).