388 ZOOLOGY 



TERA], wings alike: Cicada (14) ; [here, also, plant lice and animal 

 lice]. DIPTERA : Hexapoda with (typically) one pair wings; pierc- 

 ing and sucking mouth-parts ; complete metamorphosis. [APHANIP- 

 TERA], fleas (71). [PUPIPARA] : Hippoboscidce (71). [BRACHYCERA], 

 true flies : Muscidce (62) ; (EstridcB (65) ; Syrphidce (66) ; Asilidce (66) ; 

 Tabanidce (66); Simuliidce (67). [NEMATOCERA], gnats: Ceci- 

 domyidce (67) ; Culicidce (69) ; Tipulidce (70). COLEOPTERA, Hexa- 

 poda whose fore wings are modified into wing covers ; hind wings 

 folded when not in use : Coccinellidce (55) ; Chrysomelidce (54) ; 

 Cerambycidce (54) ; Curculionidce (53) ; Scolytidce (53) ; Tenebrionidce 

 (52) ; Lampyridce (51) ; Elateridce (51) ; Buprestidce (51) ; Lamelli- 

 cornia (49) ; Lucanidce (49) ; Dermestidce (49) ; Silphidce (48) ; Stap'hy- 

 linidce (47); Hydropliilidce (47); Gyrinidce (46); Dytiscidce (46); 

 Carabidce (45) ; Cicindelidce (45). LEPIDOPTERA, Hexapoda with 

 two pairs of scale-covered wings, sucking mouth-parts, complete meta- 

 morphosis : Tineidce (29) ; Tortricidce (29) ; Pyralidce (29); Geometridce 

 (28); Noctuidce (19,28); Bombycidce (26); Arctiidce (24); Xylotropi- 

 dce (23); Sphingidce (22); Papilionidce (21). HYMENOPTERA, Hexa- 

 poda with two pairs of membranous wings ; biting and licking mouth- 

 parts ; complete metamorphosis: [PHYTOPHAGA], plant-eating (38). 

 [ENTOMOPHAG A] insect parasites (38). [ACULEATA] stinging: For- 

 micidce (34) ; Fossoria (34) ; Vespidce (33) ; Apidce (31). 



CHORDATA 



Animals which possess, at some time of life, throat slits and a dor- 

 sal supporting rod or chorda. 



[HEMICHORDA] 



Animals of worm-like form, showing gill-slits like fishes. Balano- 

 glossus (251). 



[TUNICATA] 



Chordata which are either attached or form colonies or both (251). 



[VERTEBRATA-ACRANIA] 



Free-living fish-like Chordata, but without skull, paired fins, or 

 heart, and with colorless blood. Amphioxus (251). 



