BRANCH CLASS 



INSECTA (HEXAPOUA), 



Air breathers, when adult 

 have three pairs of legs, 

 and distinct head, thorax 

 and abdomen. 



ARACHNID A 



Ail' breathers with caphal- 

 othorax and abdomen, 

 have when adult four 

 pairs of legs. Those here 

 included are oviparous. 



DIPTERA 



Have two wings, two hal- 

 teres, sucking mouth parts, 

 and complete metamor- 

 phosis, includes flies and 

 mosquitoes. 



HEMIPTERA 



Wings often absent, when 

 present one pair thick and 

 one pair thin. , Suc]iing 

 mouth parts, incomplete 

 metamorphosis, and Include 

 the blood sucking lice. 



MALLOPHAGA 

 Wingles lice with sucking 

 mouth parts, and incom- 

 plete metamorphosis. 



SIPHON! APTEKA 

 Wingless rteas with suck- 

 ing mouth parts, and com- 

 plete metamorphosis. 



ACARINA 



Usually short thick, non- 

 articulated bodies, possess 

 camerostoma, larva usual- 

 ly hexapodal, sexes Bepa- 

 rate. 



FAMFLY 



MUSCIDAE 



Have soft probosis adapt- 

 ed for suction, styJet of an- 

 ttnnae plumose to the end. 



TABANIDAE 



Broad and slightly flat- 

 tened body, large head, 

 muscular wings, larva car 

 nivarous, are oviparous. 



STOMOXIDAE 



Closely resembles the mus- 



cidae. 



SIMULIIDAE I 



Thick body, bulging tho- I S 

 rax, legs strong. I 



HIPPOBOSCIDAE 



Flat body, head notched 



into thorax, legs strong, 

 pupiparous. 



OESTRIADAE 



Body usually hairy, largt 



wings, proboscis very small, 



oviparous. 



CULICIDAE 



Have long slender abdo- 

 men, ■fvings fringed with 

 hairs, antennae plum,ose in 

 males, oviparous. 



PEDICULIDAE 

 Blood suckers, proboscis 

 formed of upper and lower 

 lips &nd armed with small 

 spines, contains protrusile 

 tube or sucker, oviparous. 



RISCINIDAE 



Not blood suckers, have 

 long masticatory apparatus 

 with ivhich they eat epi- 

 dermic productions, ovi- 

 parous. 



PULCIDAE 



Very agile, brown oval 

 bodies, compressed latter- 

 ly, biting mouth parts in 

 larval siage. 



IXODIDAE 



Large globular blood-suck- 

 ers, oviparous, have undi- 

 vided hypostome. 



GAMASIDAE 



Rostrum arranged for 

 pricking or sucking, have 

 no eyes. 



TROMBIDIIDAE 



Soft, hairy, bright colored, p" 



rostrom a. conical sucker. Lep 



San 

 San 

 San 

 San 



Boi 

 Boi 

 Am 

 Dei 

 On 

 Ixo 



SARCOPTIBAE 

 Smallest of the acarlna, 

 body soft, white or red- 

 dish, c-yes absent, ovipar- 

 ous or ovovlviparous. 



DEMODECIDAE 

 Very small, vermiform, 

 hairless, cephalothorax and 

 abdomen distinct, lega 

 short, oviparous. 



Pboi 

 Psoi 

 Psoi 

 Sym 

 Syn) 

 Sym 

 Sym 

 Sym 



DerD 

 Dew 

 DeM 



LINGUATULIDAB 

 LINGUATULIDA. Body segmented, com- 



Internal parasite, elongat- pressed dorso-ventrally. 



ed, vermiform, annulatcd crenelated. 



