1132 COLEOPTERA 



The insect for which 1 establish this genus has quite the aspect 

 of a Corymhitcs ; indeed, I at first thought it would prove to be the 

 female of C. mundus ; but, as the front of the head shows a well- 

 marked abrupt inflection of the clypeus, the species cannot be placed 

 in Corymhites. This character brings it nearer to Thoramus, but it 

 does not resemble any of the species of that genus, and has the 

 mesosternal cavity destitute of elevated margins, and the coxal 

 lamina is very much smaller than in Thoramus. The other cha- 

 racters are apparently the same as in the two genera mentioned. 

 The meso- and meta-sterna are not at all consolidated at their point 

 of contact between the coxae ; the prosternal process is nearly 

 straight, and shows no division into two parts. The genus is not only 

 allied to Coripnbites and Thoramus, but comes very close to Crypto- 

 hypnus (as illustrated by C. thoracicus), from which it is distin- 

 guished chiefly by the shape of the front of the head, the deflexed 

 part of the front not being completely unfolded, and by the greater 

 elongation of the basal joint of the tarsi. 



2011. A. insidiosus, "•«: {Sliarp ; Trans. Roy. Dub. Soc, 

 1886, p. 402.) Rufcscens, antennis pedibusque testaceis, elytris 

 pallide brunneis ; prothorace subquadrato, crebrius subtiliter punc- 

 tato, angulis posterioribus parum prolongatis, apicibus quasi-obtusis ; 

 elytris striatis, obsolete punctulatis, striis ad apicem profundis, 

 apicibus obtusis. 



Long., 13mm. 



Antemue yellow, reaching back slightly beyond the thorax, basal 

 joint stout, second and third short, subequal, fourth twice as long 

 as second. Thorax straight at the sides, and only very slightly 

 narrowed at the front angles, slightly longer than broad, the hind 

 angles but little prolonged, and slightly twisted or uplifted, their 

 apices viewed laterally appearing rounded, the surface is rather 

 closely and finely punctured, extremely feebly pubescent. Elytra 

 rather distinctly striate, the striae continued without obliteration to 

 the apex, this not at all acuminate ; the interstitial punctuation is 

 very indistinct, and the pubescence very feeble. 



Bealey. Helms ; one example. I suppose the individual to be a 

 male. It is remarkable inasmtich as the front leg on the right side 

 is aborted, and only one-third the natural size ; but the develop- 

 ment of the example does not appear to have been in any way 

 affected by this. 



Obs. — Gcranus crassus, Shp. Mr. Helms has sent me from 

 Greymouth, Picton, and Bealey, specimens of Elater luieicollis, 

 White, accompanied in each case by one or more examples of 

 Gcranus crassus from each locality, so that I now entertain no doubt 

 that the two are the sexes of one species, G. crassus being the 

 female. 



Proielatcr clongatus, Shp. I have received also a nice series of 

 this insect from Mr. Helms. Amongst them is a well-marked 

 variety, represented by a small number of examples, in which the 

 black marks of the elytra are not present, or, rather, are indefinite 



