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ENTOMOLOGICAL NEWS. 



the outer closure of the coxal cavity formed of mesosternum, 

 mes-epimeron and metasternum. 



Hypnoidus. Epimera of mesothorax not reaching the coxa, 

 the cavity closed externally by the meso- and metathorax. 



Schioedte's work was entirely overlooked by me, and the char- 

 acters above noted were equally unobserved. As the genera 

 formed, at the expense of Cryptohypnus, seemed untenable, I 

 ventured the remark that, "if any division of Cryptohypnus be 

 thought necessary, that based on the form of the prosternal sutures 

 appears to be the only one desirable." The genus Hypnoidus, as 

 defined, is really due to Schioedte, as without his definition it is 

 as untenable as several others which are not now recognized as 

 valid. 



As thus defined, our species arrange themselves in the follow- 

 ing manner: 



Cryptohypnus Latr.. 

 littoralis Esch. 

 grandicollis Lee. 

 hyperboreus Gyll. 

 barbatus Sahib. 

 abbreviatus Say. 

 impressicollis Mann. 

 nocturnus Esch. 

 squalidus Lee. 

 funebris Cand. 

 planatus Lee. 



HypnoidllS Steph. (Schioedte). 



striatulus Lee. 

 delumbis Horn. 

 charis Say. 

 ornatus Lee. 

 cucullatus Horn. 

 melsheimeri Horn. 

 caurinus Horn. 

 dispersus Horn. 

 gradarius Horn. 

 tumescens Lee. 

 musculus Esch. 

 dubius Horn. 

 gentilis Lee. 

 sestivus Horn. 

 perplex us Horn. 

 restrictulus Mann. 

 obliquatulus Mels. 

 pectoralis Say. 



On comparing the above list with my essay on Cryptohypnus^ 

 it will be observed that our species divide into the two genera on 

 precisely the lines indicated by me, based on the form of the 

 prosternal sutures. 



