- 59 ^ 
Host Plants 
** f 
Amygdalus pers ica . ' A-p inn >r nveolons . Asclepias 'sp. . Crips el la. bursapastoris 
Castanea sp. . Citrullus vulgar is t C itrus ' grand! s . Cuourbita sp. . . Qucurbita maxim? 
Pi gus sp. , Gramineae ■ Xponoea sp. . Julians - sp~. ■. Julians nigra . Malus sylvostris . 
Malus sp. , Mcdicagp sativa . tfelia azedarach .- Phias eolus sp. , Philadelphus gordonjL 
anus . PI at arms racenosa . Prpnps flonestica . ' ' Pn imm vir^lniana. P^roo sp. .7 
Opercufe sp., Ribes sp., Robinia sp., Rpbps parvif lorus . Rpbps sp., Runex sp,, .. 
Sal ix sp. , S olappra nelonaena . Vicia sp., fitis sp.,' Viburnum sp. 
Tet ranychus telarips L. 
This mite is nearly world wide in distribution. According to H, E, Ewing 
n .T« tolarips is a'seriops pfest in Eprope and is generally distribpted, except in 
the northern part of Russia and in the Scandinavian Peninspla, In North Arnorica 
it is found from Ontario to 'Texas and from British Columbia to s opt hem Cali- 
fornia. It is also known from Sopth America, Hawaii, Sopth Africa, and Apstrali 
There appear to be no records of its occprrence in India, or in the Philippines | 
(Jour. Ent. and Zool. Claremont, Calif., v,’ 6, No. 3r PP« 121-132, September 
191^*) Other apthors, however, report it from India. 
Ewing considers T. telarips L., T. biraaculatps Harv. , and T. gl overi 
Banks as synonymops. (Oreg. Agr, Expt. Sta. Bpl, 121, 95 PP* » August 191^; The 
Common- Red Spider or Spider Mite, Rev. Appl. Ent, (A), v, 3,' P» 63 , 1915*) He n* 
longer considers T. s exraacplatps Ril’ey as a variety of T, telarips . but now re- 
gards it as a' distinct spocies. He says, M The name- T« bimacplatps Harv. cannot 
be psed for this mite. ' The proper scientific name for it dates back many years 
before the days of Harvey. Hirst a few years ago went over the matter again and 
decided ppon T. telarips L. as' the scientific name for the common spider -mite of 
North America and Eprope, which are withopt dopbt identical. The question of a 
variational form does not apply in this case as has been claimed by some.” (U. 
S. Natl. Mps. Let. Dec. 1, 1933.) 
E, A. McGregor differs from the views of Ewing as to the synonymy of JT. 
telarips- L. He treats T. gl overi Banks as a synonym of T. bimacplatps. He says 
it is doubtful whether the true T. telarips occurs in- North America at* all. (Th* 
Red Spiders of America and *a Eew European Species Likely to be Introduced, U, S. 
Natl. Mps. Proc. , v. 56 , pp. 641.679, 1919.) 
Throughout most of the volumes of the Review of Applied Entomology, T. 
telarips and T, althaeae are considered identical, but althaeas has at times 
been separated under the following genera; Epi t e t ranychus . Paratetranychus. 
and Tot ranychus . , . : • 
This report includes records available in the Insect Pest Survey files 
and in the literature for T i . telarips f £. b imaculatus and T. althaeae ( Epifre- 
trany chus ) (P aratetranychus ) , and _T. gloverj . 
> E 0 A. McGregor, after reviewing this manuscript, made the following state, 
ments regarding 3b h eiarius, L. and its synonymy; ’’On a few occasions I have re- 
ceived. identic ied. material from Europe and it may be stated that -T« t elarips (as 
determined, by Zachor ) is entirely distinct from the common American ’red spider, - 
going under that name. Speaking of the ’red spider* of linden trees in Europe, 
