80 



Epistoma pointed (Fig. 15) and provided with a few lateral 

 teeth, like in C. spiricornis (G. et R. Can.). 



Mandibles (Fig. 17). The immovable finger has three broad 

 teeth, each with two smaller teeth. The immovable finger is pro- 

 vided with a sharp dog-tooth and an enormous incisor, thus it 

 resembles somewhat a key for female screws. Moreover it is provided 

 it its top with a blunt lengthening-piece. This finger bears a 

 rudiment of a copulation organ or appendage, which is however 

 fused with it and projects forward, reaching al most the top of 

 the finger. Further it has an inner (superior) and an inferior 

 transparent blade. 



Maxillae (hypostoma and palps). (Fig. 16). The inner malae have 

 coalesced to one triangular cusp provided with the usual feathered 

 appendages. The outer malae are of the usual horn-type, small. 

 At the base of the palps on the sides of the epistoma there are 

 two conspicuous »styles". The palps are normal. 



The legs (Fig. 15) are short. The first leg is dorsally provided 

 with very short, spool-shaped hairs : one on the trochanter, four 

 on the femur and two on the genu, which has also two such 

 hairs on its inner side. The second leg has on its dorsal side four 

 such hairs on the femur and on its inner (anterior) side two such 

 hairs on the genu. Moreover one long thuniblike and a smaller 

 process on the ventral side of the femur, one small process on 

 the genu, one on the tibia, and one little thorn, or spur, directed 

 distally on the tarsus. The third and fourth legs do not show any 

 particular. Moreover (Fig. 16) the coxa 1 has proximally a little 

 hole (ontled of coxal gland?); the coxae 2 and 3 posteriorly and 

 distally, and the coxa 4 anteriorly and distally a sharp and short 

 edge or process like a thorn. 



6. Key to the species of Parasitus Latr. 



Nymphs of which the adults are unknown. 



! Immovable finger of mandible with 

 hyalin apophysis in top ... 2 

 No such apophysis 3 



