OF NEW ZEALAND. 295 



Cryptohypnus. 



Sharp ; Ann. Mag. Nat. Hist., May, 1877. 



Forehead curved in front, the clypeus in the middle nearly or entirely 

 wanting, so that, though the forehead presents a sharply defined edge in 

 front, the labrum is placed immediately beneath it ; antennal spaces 

 distinct, but much concealed by the horizontal edge of the forehead, 

 and widely distant from one another in the middle ; antenna filiform. 

 Pro sternal process rather long and straight. Mesosternal cavity rather 

 broad, formed by broad but not in the least raised edges, reaching back 

 to the intercoxal suture. Trochanteral portion of coxal plate well 

 developed, but the femoral portion nearly completely absent. Tarsi 

 moderately long, with all the five joints well developed and simple. 



The above structural characters will enable the New Zealand species 

 to be identified. 



522. C. powelli, Sharp; Ann. Mag. Nat. Hist., May, 1877. 

 C. sub-depressus ^ tenuissime pubescens, niger, antennis fusco-testaceis ; 

 pedibus testaceis; antennis tenuibus, sat elongatis, articulo tertio elongate, 

 secundo longiore quarto fere aequali ; prothorace lateribus rotundatis, basin 

 versus angustato, angulis posterioribus minutis acutis, crebre subtiliter 

 punctato, medio canaliculate ; elytris distincte striatis, interstitiis nullo 

 modo elevatis, obsolete rugulosis. 



Long., 7-9 mm. 



The female is rather larger than the male, and has the hind angles 

 of the thorax, though acute, not at all prolonged. 

 Craigieburn : found by Mr. Powell. 



523. C. humillS, Sharp ; Ann. Mag. Nat. Hist., May, 1877. 

 C. sub-depressus, tenuissime pubescens, niger, antennis pedibusque testa- 

 ceis ; prothorace lateribus rotundatis, ante basin constricto, angulis 

 posterioribus gracilibus peracutis, sat elongatis, fortiter divergentibus, 

 crebre subtiliter punctato, medio canaliculate; elytris sat profunde 

 striatis. 



Long., 7-9 mm. 



Though extremely similar to the preceding species, this may be 

 readily distinguished by the more prolonged hind angles of the thorax. 

 The differences between the sexes seem to be very slight; the female is 

 rather larger, and has the thorax a little more dilated at the sides. 



Wellington, February, 1875 (Wakefield). 



524. C. frontaliS, Sharp; Ann. Mag. Nat. Hist., May, 1877. 

 C. sub-depressus, tenuiter pubescens, niger, nitidus, antennis fuscis, 

 pedibus testaceis, femoribus obscurioribus ; fronte antice in medio 

 abrupte depressa ; thorace elongate, ante basin leviter constricto, angulis 

 posterioribus sat elongatis, crassioribus, vix divergentibus, subtiliter sat 

 crebre punctato medio indiscrete canaliculate ; elytris subtiliter striatis, 

 striis punctatis, interstitiis parce subtiliter punctatis. 



Long., 5j mm. 



