64 



MR. K. M. SMITH ON CERTAIN SKNSE-ORGANS 



sense-organ. Text-fig. 41, a longitudinal section of the antenna 

 of Compsihira concinnata Meig. { = Phorocera serrivenfris Rond.) 

 2 (C J. Wainwright det.), shows the nerve running up from the 

 head and branching in the third joint, and the large number of 



Text-fisure 41. 



Longitudinal section of tlie antenna of Compsilura concinnata. X 128. 



pits of various sizes on each side of the antenna. Mr. Wain- 

 wright informs me that this insect is a parasite of many hosts, 

 mostly Lepidopterous, but including also some Sawflies. 



CEsTRiD^ (Text-fig. 42). 



GastrbpMlus equi : the surface of the antenna of this species 

 (text-fig. 42) is beset with small sensory pits with long slender 



