November 1S91.J 



PSYCHE. 



171 



wings. No. 4 I had taken to be the 

 cisteloides of Schonherr, Jlctvipes of 

 Pavkull. To No. 9 I had fixed the 

 name of j^. cupreus, F. ; it is your 

 Pcecilia lucubanda ; to No. 16, your 

 Amara im punctata, I gave the name of 

 Carabus dispar, Paylkull, or vulgaris, 

 F. I should not have suspected your 

 Harpalus rusticus (No. 11) to have 

 belonged to the genus Harpalus, 

 judging from a cursory view, it seems 

 very unlike the other species of that 

 genus. Your H. viridis, Nos. 12 and 

 13. stand in my cabinet by the name of 

 sEneus? F. proteus? Paykull. The 

 latter name appears appropriate from 

 the variety of shades which different in- 

 dividuals exhibit. You will, I hope, 

 excuse my confessing my mistakes, for 

 such I presume they must be ; for you 

 have the best means of knowing that 

 these individuals had not been before 

 described, or that I had not rightly made 

 them out. No. 38 is not the female of 

 Lampyris corrusca. I have obtained 

 the sexes in coitu, & the female is not 

 apterous. No. 41 which you mention 

 as a variety of L. laticomis, F. I have 

 found in great numbers on shrubs in 

 July, & never in company with the 

 laticomis, No. 42 : Hence I conclude 

 it must be distinct, & therefore marked 

 it as the ater? F. No. 47, your S. 

 caudata, stands in my cabinet as the 

 Silpha lapponica, to Fabricius' des- 

 cription of which I thought it corres- 

 ponded. I cannot discover teeth on the 

 posterior thighs of No. 4S, S. surina- 

 mensis F., as described by Fabricius. 

 Is No. 59 the same as Dermestes 



marmoratus* Knoch, in Melsheimer's- 

 catalogue? No. 66 answers the des- 

 cription of Scarabaeus Hecate, Panzer, 

 (Faun. Amer. Boreal. Prod[r]omus). 

 No. 74i your.Sc. rel ictus is very common 

 in certain localities. On May 21st 1S22 

 I saw the ground covered with them at 

 Hoboken, New Jersey ; & last summer 

 great quantities were exhumed from be- 

 neath a dung hill in this vicinity, in all 

 their stages of larva, pupa, & imago. 

 No. 75 Melolontha querciua, Knoch, 

 is very injurious to fruit trees in June; 

 the larva is equally destructive to the 

 roots of grass. Can No. S2 be a variety 

 of M. varians. It has not the ovoid form 

 of the varians, & seems nearer allied 

 to your iricolor. Trichius scaber dif- 

 fuses so strong an odour that I have 

 frequently discovered it by that alone, 

 when at the distance of several yards. 

 The larva in habits the trunks of decaying 

 trees.* Melolontha elongata is found 

 in profusion on oaks in June. To No. 

 91 I gave the name of Troxnigritus, & 

 to 92 that of T. pulverulent us. I omit- 

 ted in course No. 22 which is my Cara- 

 bus pusillus, & No. 33 Elater pumilus. 

 No. 93, to which you assign the name 

 of Tenebrio barbatulus, lives like the 

 molitor about stables, granaries &c. 

 The larva devours corn ; is elongated, 

 depressed, corneous, & of a yellow 

 colour, with 6 very small legs at the an- 

 terior extremity, & a short tubercle be- 

 neath the posterior to assist it in moving. 

 In the pupa the segments of the ab- 

 domen are produced, flattened & finely 



*Is Trichius eremicola, Knoch, the Scarabceusebenus 

 of DeGeer? 



