ILLUSTRATIONS XXV 



FIGURE PAGE 



450. A Bird Louse {Lipcurits variahilis) ; last summer I found two creatures 

 of this sort attached to the leg of a hippoboscid fly caught on a window 

 in my house at Manchester, Mass.; all three had strayed from some 

 bird. Bur. Ent., after Denny 158 



451. Adult male of the Fluted Scale [Icerya piirchasi). Bur. Ent 162 



452. Adult female, with young, of the San Jose Scale. Bur. ICnt 162 



453. Adult male of the San Jose Scale. Bur. Ent 162 



454. Diaspis lanalus, adult female. Bur. Ent 162 



455. The same, adult male. Bur. Ent 162 



456. The same, newly hatched young. Bur. Ent 162 



457. Gossypon'a uhni, female. Bur. Ent 162 



458. The same, male. Bur. Ent 162 



459. An Aph d or Plant Louse (Laclmus plataiiicola). Bur. Ent 162 



460. The same. Bur. Ent 162 



461. The same. Bur. Ent 162 



462. Chaitophorus negundinis, wingless female. Bur. Ent 162 



463. The same, female. Bur. Ent 162 



464. The Cabbage Aphid (Aphis hrassicac), winged male. Bur. Ent 162 



465. The same, female. Bur. Ent 162 



466. The Cocoanut and Guava Mealy- wing (^l/c;/ro(fic«.!r COC0/5). Bur. Ent. 162 



467. The common House Centipede [Scutigcra forceps); it has quite a pain- 

 ful bite, but is not near'y so poisonous as the large tropical centipedes. 

 Bur. Ent 164 



468. The Fire-brat {Lcpisma domcslica) which, with the similar but larger 

 Silver-fish (Z,. sacchariua), is common in houses. Bur. Ent 164 



469. A CoUembolan [Onychiurus dcntatiis) from Alaska. From Folsom, 



U. S. N. M 164 



470. Another CoUembolan {Onychiurus similis) from Illinois. From Folsom, 



U. S. N. M 164 



471. The Red-bug, Jigger, or Bete-rouge; this is the young stage of a pre- 

 daceous mite {Trombidium). From Banks, U. S. N. M 168 



472. An adult Trombidium {T. locustarum) , male; this kind is known to 

 destroy a great many grasshopper eggs. From Banks, U. S. N. M. . . 168 



473. The human Itch-mite {Sarcoptcs hominis), female. From Banks, 



U. S. N. M 168 



474. The same in her burrow in the skin, showing her eggs. From Banks, 



U. S. N. M 168 



475. The hair follicle mite {Demodex foUictdortim) , which lives in hair follicles. 

 From Banks, U. S. N. M 168 



476. A Gall-mite {Eriophves vitis), which damages grape vines in California. 

 From Banks, U. S. N. M 168 



477. Round galls on a leaf caused by some species of Eriophyes. From 

 Banks, U. S. N. M 168 



478. Rib galls on a leaf caused by another species of Eriophyes. From 

 Banks, U. S. N. M 168 



479. Nail galls on a leaf caused by a species of Eriophyes. From Banks, 



U. S. N. M 168 



