302 Mr. W. A. Haswell on two new 



A second specimen (6), with precisely the same colora- 

 tion, differs from the type in having the third joint of the an- 

 tennas less densely fringed, and the joints following it are 

 more elongate ; in the type the third joint nearly equals all 

 the following joints taken together ; whereas in the second 

 example the third joint only equals the three following joints 

 together. The scutellar region of the elytra is less strongly 

 punctured. These are probably sexes of the same species. 



Themistonoe delectabilts, n. sp. 



This species is extremely close to T. humeralis • but I think 

 the difference of colour &c. indicates more than a variety. It 

 differs in having the yellow of a more ochreous colour ; the 

 elytra entirely of this colour, except a mark in the middle in 

 the form of an inverted f> which (as well as the apical third 

 of the elytra) is deep violet. The apical violet portion has a 

 number of irregular oblique ridges which are not visible in T. 

 humeralis. The underside of the insect is black, except the 

 middle of the prosternum and the coxa?, which are dusky 

 yellow. 



Hah. Bogota (17. Chesterton) , 



XXIX. — On two new Species of the Genus Paratymolus, Miers 

 (Crustacea Brachyura), from Australia. By WlLLlAM 

 A. Haswell, M.A., B.Sc, Curator of the Queensland 

 Museum, Brisbane. 



[Plate XVI.] 



Undee the name of Paratymolus ptibescens, Mr. E. J. Miers 

 has recently described (P. Z. S. 1879, p. 45, pi. ii. tig. 6) a 

 curious new podophthalmous crustacean from Japan, which 

 he refers, though with some doubt, to the family Homolidas. 

 Paratymolus differs from Homola (1) in not having the last 

 pair of legs elevated on the back, (2) in the possession of dis- 

 tinct cavities excavated under the front for the lodgment of 

 the antennules, (3) in having the external maxillipedes oper- 

 culiform. It approximates in some of its characters to the 

 Corystidge ; and probably its nearest ally is Tehnessus of White, 

 together with which genus it might be regarded as forming 

 a distinct family, having affinities, on the one hand, with the 

 Homolidse, and on the other with the Corystida3. 



During a recent dredging-excursion I obtained at Port 



