THE INSECT FAUNA OF THE GENUS CRATAEGUS 
Wa.treR H. WELLHOUSE 
This paper is submitted as a result of three years of study of the insects 
that feed on the plants belonging to the genus Crataegus. The writer’s 
object at the time when the work was undertaken was primarily to learn, 
by collecting and rearing, what insects occur on the trees of this genus in 
central New York. As the interest in the work increased, it was decided 
to widen the field and make the list more complete by including the insects 
that other workers have found to be eaters of Crataegus. 
There are three older lists of insects feeding on Crataegus which have 
been helpful in the preparation of the present catalog. Kaltenbach 
(1872)! gives a list of 104 European species, Packard (1890) gives 46 
American species, and Felt (1906) gives 28 American species. With the ex- 
ception of these three lists, the material included in this paper is gathered 
from widely scattered references and from the writer’s observations. Since 
food-plant indices are very commonly omitted from entomological writings, 
it is difficult to get a list of all the insects that feed on a plant. Such a 
list can be obtained only by scanning the pages of a multitude of papers - 
containing biological notes on all orders of insects. Much of that kind of 
work has been done in the preparation of this catalog, but, since it has 
not been possible to see all papers that might contain accounts of insects 
feeding on Crataegus, the writer does not claim that his list is complete. 
The catalog contains 382 species, representing 9 orders and 55 families. 
They are distributed as follows: 
Acarina, 10 species: Thysanoptera, | species: 
Binrophyid tempera. 8544. 44 le 7 Gbhry pica ewe yoo eae ie sen een 1 
Phyllocoptidae.......... Rec ite 1 Coleoptera, 74 species: 
Metramychidaens. 4.2)... 4). 8e. 2 lateridaeierc. we se 3 seen 3 
Orthoptera, 4 species: IBUprestidaeas area e eee 6 
CGryllidacmepwere 2) rs sn es 1 Scarabaeidae.................... 4 
INGTIGIGCACH ETN fosa s en ox ellos oh 3 Cerambycidaeteer en ate eee 5 
Odonata, 1 species: Chrysomelidae...:.............: 12 
A\GIIGINKG EVO S oie 5 Ree Eee ne ane 1 Curculiomdaenrere eee eer 40 
Hemiptera (including Homoptera), 84 Ipidae (Scolytidae)............... 2 
species: Anthribidae........ eRe La a? 1 
Miridae (Capsidae).............. 12 Dermestidae.22.0.02.60.604 06005 1 
“TLTIAGATOIOENS, So Sie ele Ree an 4 Lepidoptera, 184 species: 
Wem bracidaekia. 4 ae.) se ate: 4 Rapilionidaemesp ents eee ee 2 
Cicadellidae (Jassidae)............ 18 IN MVIGED. oo adadoooodcoo adc 2 
Psyllidae (Chermidge)............ 7 (PISTIG AE ee fener isa ahaa or eee 1 
/s FLAG IORNS sis, AO RRR ee 22 Iivicadenidae ya caine macs san eden ts 3 
Coccidae...... Ah A cxe Ppa eee ar 17 SToMIMACEND. ooods cdo csdomoqe6e aor 3 
1Dates in parenthesis refer to Literature Cited, page 1088. 
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