ACRlDID^. 527 



Some of the Xipkocera here recorded may form distinct {genera, and 

 the five following species differ especially from tlie type, and the spines on 

 their hind tibiae are of equal size. They have some affinity to the OpomulcE, 

 and on the other hand are allied to a few species which will be recorded in 

 the division that is defined by a slightly ohliqiie front and by filiform 

 antennae, though they differ in the one or in the other of these characlers. 



21. XrPHOCERA EXEMPTA. 



Mas. Cinerea ; caput et pmthnrax subcarinata, suhlililer punclata, 

 niqro lineolata; an ten nie fere fili formes, prothorare miillo Inngiores ; 

 prothnrax antice el poslice rotundalus ; proslerni spina lain oblusa 

 incisa ; pedes nigrn notuli, tiiiis posticis snlurale rufis basi lesluceo 

 fascia lis, larsis poslicis tcslaceis ; alee anticce obscure cinerea:; ala 

 poslicce tiii/ricanle marginalcc. 



Male. Cinereous. Head and prolhorax minutely punctured, with a 

 slight keel and with several irregular black lines. fJead conical in front of 

 the eyes ; front with four keels, tbe inner pair diverging from ilie vertex to 

 the face. Ejes and ocelli like those of X. rurivola. Antennae flat, nearly 

 filiform, with a black subapical band, much longer than the protliorax. 

 Prothorax with the usual three transverse impressed lines; fore border and 

 hind border rounded. Prosternum with a broad obtuse bilobed spine. 

 Four anterior femora and tibicc and hind femora with black marks ; hind 

 tibiaj dark red, with a testaceous band near the base ; spines black, of equal 

 size; hind larsi testaceous. Pore win;iS dark cinereous; veins blackish. 

 Hind wintrs cinereous, blackish about the tips and along the hind border. 

 Length of the body 14 lines ; expausion of the fore wings 26 lines. 



a. Australia. Fiom Mr. Daniel's collection. 



22. XiPHOCERA OPOMALOIDES. 



Mas. Cinereo-fusca, gracilis ; caput et prothorax subcarinata, subtiliter 

 rugulosa ; caput antice suhtriangu tare, fronte sal obliqua; antenna 

 ferruginecB, subsetaccce ; pecltis anlice et poslice subconiciim ; pectoris 

 spina lata, f urea la ; libice poslicti saturate riifcB, spinis cequalibns ; 

 alec anlic<e annulis paucis obscurioribus ; alee poslicce cinerece, apice 

 nigricanles. 



Male. Cinereous-brown, slender, nearly cylindrical. Head and pro- 

 thorax minutely rugulnse, with a very slight keel. Head with a short 

 nearly triangular cone in front of the eyes; front rather oblique, with four 

 slight keels, of which the middle pair diverge towards tbe mouth. Eyes 

 pyriform, oblique, not prominent. Antennae ferruginous, slender, very 

 slightly tapering, with above twenty joints. Prothorax with three slight 

 transverse impressed lines; fore border and bind border slightly conical. 

 Pectus with a broad furcate spine. Hind tibia; dark red, with two rows of 

 short stout black spines of equal size. Fore wings with a few minute 

 indistinct darker ringlets. Hind wings cinereous, blackish about the tips; 

 veins black. Length of the body 18 lines ; ex|)ansiou of the fore wings 

 30 lines. 



a. Port Stephen, Australia. Presented by the late Earl of Derby. 



