80 



Caiikci'wonns wcic present in Ihc early season in considerable 

 nunihers and a ('oMsi<lei-al)le jjroporl ion of t he injury was (ln<- to tlie 

 Tall eankerwoiMM. 



The San Jose scale has of course attracted no little attention and 

 its spread in the State has been marked by serious loss, but this 

 species will doubtless be mentioned in detail by oui- secretary, whoso 

 duties have broui,dit him into special connection with it. 



During the latter i)art of August and in September I found on a 

 species of Euphorbia, which occurs as a somewhat common weed on 

 the university campus, considcral)le numbers of the little capsid, 

 KccrHolnrsiis cleydns. in both larval and adult forms, and was there- 

 fore able to secure the different stages in the life history of the species, 

 with the exception of the eiX'j;. 



It ai)peai-s that the development is (piite rapid, since the larva' of 

 different stages occur at the same time u|)oii the same plants, and 

 these, when kept in conlinement, moulted frequently and attained 

 their maturity in a short period of t ime. The species seems oi-dinaiily 

 quite rare, but this rarity in collections is doubtless due to its limita- 

 tions in food plants, and perhaps also due to the limited period during 

 which it occurs each season. It appears to coincide with the develop- 

 ment of the blossoms in its host plant, and both young and adults 

 match the color of the butls and portions of the leaves so closely that 

 they are doubtless well protected by the mimicry. The young have 

 the distinct [)urple-red coloi- which agi'ees perfectly with the unopened 

 buds, or, in some cases, with the parts of the leaves, the adults, with 

 theii- white markings, with the seed pods after the dropping of the 

 petals. 



At the same time and on the same host plant there wei'e found large 

 numbers of one of the Coreid bugs, Corizus Jti/dlinns, which in its 

 dex'elopment, and especially in the coloi-ation and marking of the 

 lar\;e, shows a distinct adajttation to life upon this host. 



One othei' species of (•onsideral)le interest o])serve<l for the (irsi 

 time this year is a Fulgoi'id, which shows a rather anomalous habit of 

 living underground and feeding upon the roots of various plants. 

 This I have named MijnduM rndiriis i\\u\ described in a recent num- 

 ber of the Ohio Xaturali.st (Vol. IV, p. 42). It was lir.st noticed in the 

 lai'val stag<\ occurring upon roots of Impatiens, nettles, and various 

 species of grasses. Within a few da)^s I secured l)y i*earing several 

 of the adults and al)out the same time these were fouTid also in the 

 ground, occuri'ing iti the cavities tenanted by the nymphs, 'i'he 

 nymphs are of a pale greenish color, llu' sutural bands of the abdo- 

 men appearing white, and there is a prominent cottony tuft secreted 

 »»n the posterio'" segment, which, wluMi fully developed, extends one- 

 thii<l of tlie length of the alxjomen bevf)nd its apex. Two nymphal 

 stages wei'e obsei-ve(l, the younger having a length of L'.C.'"'an<l a 

 width of 1" '". The matuie nyinpli or pupa, as determintMJ by rearing. 



