145 



In habits this tiger beetle resembles Ciciridela lecontei so „ar as the 

 ruu and flight are eoucerued. It is uot so active au insect as some 

 others of the sandy-soil frequenters, nor does it ruu or fly as quickly 

 as they, no doubt depending more or less upon its color for protection. 

 But little variation is noticeable in the markings of the difl"erent indi- 

 viduals; in fact, the few specimens taken tend to show a much more 

 pertinent adherence to a typical pattern in this respect than is usually 

 the case with the species of the genus. C.'lepida, G.formosa, C\ venusta, 

 and C. inmctidata were also taken in similar places. Of these latter 

 the C. lepida alone was restricted to the bare white sands of blow-outs 

 of considerable size, while the other three were also to be encountered 

 away from these locations indiscriminately among the sand-hills. 



The larval burrows of limhata are evidently placed in the somewhat 

 solid upright banks upon the sides of the larger " blow-outs." Of these 

 burrows none were seen that could be deflnitely said to belong to this 

 beetle, although some search was made for them. Evidently the season 

 was too early for them. My reason for thinking that the larvae are to be 

 found here is that the parent beetles are most frequently seen about 

 these banks when i» cot'^Jt ; and also because the material composing 

 the walls of these "blow-outs" is too fragile and loose at every other 

 point save here lor sustaining the burrows. 



EXTRACTS FROM CORRESPONDENCE. 



Injury by Xyleborus dispar in England. 



The beetle which is considered one of the rarest of the British Coleoptera, the Xy- 

 leborus dispar Fabr. (formerly known as Bostrichiis or Apate) has appeared in such 

 great numbers in plum wood in the fruit grounds at Toddington, near Cheltenham, aa 

 to be doing very serious injury. I found on anatomizing the injured small branches 

 that one of the galleries which the horde of beetles (packed as closely as they can be) 

 forms or enlarges passes about two-thirds round in the wood more or less deeply be 

 neath the bark, whilst another of the tunnels, likewise occupied with its closely-packed 

 procession of beetles, was in possession of about 2 inches of pith, so that the rapid 

 destructoiu of the tree was fully accounted for. The attack appears, as far as I see. 

 to disappear usuallj' very rapidly ; but I am alvising burning to make sure. This 

 disappearance I conjecture may arise from excessive rarity of the male of this spe- 

 cies; amongst about 60 females which 1 extracted from the tunnels I found only 

 one male. » » » — [Eleanor A. Ormerod, Torrington House, St. Albans, England, 

 August 22, 1889. 



Insect Pests in Colorado in 1889. 



Here is a short summary of the insect pests in Colorado for 1889, so far as they 

 have come under my notice : 



There has been considerable immunity from the attacks of insects in Colorado this 

 year, so far as I can learn. Neither Eurycreon nor Caloptenus have molested in this 

 section, at any rate. Warble-flies (Hypoderma bovis DeG ) have been complained of 



