150 ENTOMOLOGICAL NEWS. [May, 



removed a sight met my eyes which was beautiful to behold, 

 especially since it was my first experience with Clerus ichneu- 

 vionius (with exception of the two specimens taken from the 

 inside). Under every piece of bark around the whole tree for 

 three feet up were patches covered with this beetle. It was in 

 the month of February, and, though the sun was quite warm, 

 the beetles were slow to show life ; a few around the outer edges 

 w-ere dead, but they were imbedded to some extent in bits of 

 spider-web, and had probably been entangled in previous seasons. 

 Under the bark were a few more Adelocera impressicollis ; some 

 of the common Tenebrionidse found at this season, and Cato- 

 gemis rufus. 



Other hollow trees were examined in the vicinity, but yielded 

 only a few specimens of Aphodius oblongus, Dendrophilus punc- 

 tulahis and Corymbites sulcicollis. These are nearly always found 

 among the dust. Whether they have been disturbed by squir- 

 rels or jarred down is hard to tdl, Taut one would suppose that 

 the latter species would be found clinging to the wood. 



I have often been surprised at th'e gregarious habits of certain 

 Carabidae. What is there about a log or depression in a piece 

 of woods that attracts insects of a certain species in great num- 

 bers, when you might hunt in vain in similar situations in the 

 same piece of ground ? Pentagonica fiavipes, var. bicolor, is not 

 a common insect. One day in October, some two years ago. I 

 examined a depression (in ground) near a charred log. The 

 place was not over five feet in diameter, but it yielded more than 

 thirty specimens of Pentagonica ; thirty-nine were taken alto- 

 gether, but the others were a few feet away near another log. 



Almost in the same way I took (several years ago), near one 

 small log which was partly imbedded in the earth, upwards o^ 

 fifty specimens of Lebia viridipennis , a species that had seemed 

 rare till then. The same fall I took enough of Lebia ornata 

 (near one log) to nearly fill a 4-drachm bottle, a species that is 

 always common, however. 



At another time a friend turned up a nest of Clivina impressi- 

 frons. It was in the early Spring. They were clinging to the 

 underside of a log which was very deeply imbedded in black soil. 

 In such situations it is quite a rare thing to find Coleoptera, ex- 

 cept along the edges, but here there were Clivinas (closely 

 crowded) on a space not larger than one's hand. 



