io6 



I think dis'tinct generically from these, by its long, ovate form 

 and great size. 



Mcgalcchthnis tryoni, sp. no v. 



Female. Head ovate, moderately elongate, yellow or brown- 

 ish yellow, shining when clean, but often dull from the excre- 

 tion of its host, more strongly convex behind the orifice of the 

 brood-chamber than in front of it. 



Male puparium brown or pitchy, unicolorous or nearly so. 

 Length about ^3 mm, 



(Plate III, fig. 5.) 



Hab. Cairns and I think noticed in other localities in Queens- 

 land. Unfortunately we did not breed the male, not having 

 time to pay any particular attention to this parasite, though we 

 frequently noticed Fulgorids of the genus Flatybrachys, or its 

 allies, to be affected by it. I have named the species after Mr. 

 Henry Tryon the Government Entomologist of Queensland, 

 whose wide general knowledge of the fauna of that State is so 

 well-known to all. 



Elcnchus, Curt. 



The characters of this genus have been elaborately drawn up 

 by Eaton and it is not necessary to repeat these. I have already 

 stated wherein I differ from him in the interpretation of the 

 mouth parts. Briefly what he considers to be the ligula I con- 

 sider to be epistome or epistome and labrum, the oral aperture 

 of his description being merely a deep concavity beneath the 

 frontal projection. Although what he considers to be the third 

 and fourth antennal joints are unquestionably morphologically 

 so, yet it appears that at the point of their divergence these may 

 be connected by a thin submembranous portion and not perfectly 

 fiee. Further he remarks that the wings are ''well represented 

 by previous authors," but Westwood's figure of these is quite 

 unlike any specimen I have seen, in neuration, and the same 

 remark applies to the metathoracic acutellum. 



Elenchns tcnuicornis, Kirb. 



Female. Head brownish or pitchy, opening of the brood- 

 chamber far behind the middle and very large, no anterior me- 

 dian area and tubercles defined, but with a faint round spot just 

 in front of the brood-chamber orifice on each side of the mid- 

 dle line. Length J mm. 



