172 



PTSCHE. 



[November 1S91. 



serrated, & the tail bifurcated. No. 95 

 is the only species of Meloe I have ever 

 discovered ; it is not uncommon in pas- 

 tures. I cannot reconcile the descrip- 

 tions of Dlaperis viridipennis with my 

 specimens of No. 94. They inhabit be- 

 neath the bai - k of decaying trees. To 

 99 I gave the name of Curculio hirtus 

 in my collection. No. 103 I have al- 

 ways taken to be the Megacepha marm- 

 orata. No. 106 is the Scolytus cerasi 

 of mv cabinet. Is it not of the 

 genus Hyhirgns? No. 11 r you have 

 marked as a variety of Callid. fenni- 

 cittn. Fabricius describes that insect 

 with violaceous elytra. I had marked 

 in as the flavum, F. In the Steno- 

 corus pntator, Peck, the 2d and 3d 

 joints of the antennas are each termin- 

 ated with one rigid spine ; & I agree 

 with you in thinking that it is probably 

 distinct from the bidens & villosus of 

 Fabricius. 170 is my Donacia atten- 

 uata. 127 Crioceris {Lema) trilineata 

 is found on the vines of the potato & 

 other Solani in June. The eggs are 

 affixed to the leaves, & immediately on 

 their being hatched the larvae enter the 

 earth. No. 133 inhabits the leaves of 

 the apple tree. The larva devours the 

 parenchymatous substance of the leaf, 

 the cuticle remaining untouched. Here 

 it changes to a nymph, & emerges from 

 its retreat only when it has assumed the 

 imago. The larvas of 130 Imatidium 

 argus, feed upon the leaves of the Con- 

 volvuli ; those of 132, Cassida aurichal- 

 cea, on the leaves of the sweet potato, & 

 the Solanum dulcamara. Eumolpus 



auratus I have always found on the Apo- 

 cymim androsoemifolium, and Chry- 

 somela trimaculata on the Asclepias 

 syriaca on which plant the larva & pupa 

 of the latter are also found. Coccinella 

 Q-notata, & C. abbreviata inhabit the 

 leaves of the carrot, from which I have 

 obtained the larva & pupa. Your C. 

 bioculata is constantly found in all its 

 stages on the Ligtistrum vulgare. 163, 

 your Colas pis 10-notata, I have found 

 only upon the leaves of the oak. No. 

 175 is my Helops piceiis. 



The marine shells which I intended 

 for you, were unfortunately mislaid or 

 lost, & I have delayed this letter in the 

 hopes of recovering & sending them by 

 a private conveyance. They were not 

 of much value for rareness or beauty, 

 but were such as are common here, & 

 which I can therefore replace in the 

 course of the summer. 



With sentiments of respect, 

 Yr. obed't friend 



T. Wm. Harris. 



[Endorsed with the following notes 

 by Thomas Say] : — 



Malachius 4-maculatus Fabr. ; it is 

 certainly the 3d j't. Fab. is right ; the 

 ant'r tarsi have 5 very distinct joints. 

 Mai. vittatus some of my spec's have 

 the anten'a dusky at tip. Lucanus paral- 

 lelus. the fern, has the tooth somet's 

 hardly obvious. Calosoma calida and 

 several others Fab. descr'd as apterous 

 have wings. 



