(1) _Aptera_ 531 (2) _Neuroptera_ 531 (3) _Orthoptera_ 531 (4) _Thysanoptera_ 531 (5) _Hemiptera_ 531 (6) _Diptera_ 532 (7) _Lepidoptera_ 532 (8) _Hymenoptera_ 532 (9) _Coleoptera_ 532 Order. _Rhyncota_ 532 (_a_) _Rhyncota aptera parasitica_ 532 Family. _Pediculidæ_ (Lice) 532 Genus. _Pediculus_, Linnæus 532 _Pediculus capitis_, de Geer, 1778 532 _Pediculus vestimenti_, Nitzsch, 1818 533 Genus. _Phthirius_, Leach 534 _Phthirius inguinalis_, Redi, 1668 534 (_b_) _Rhyncota hemiptera_ 534 Family. _Acanthiadæ_ 534 Genus. _Cimex_ , Linnæus 534 _Cimex lectularius_ , Linnæus 534 _Cimex rotundatus_, Signoret, 1852 536 _Cimex columbarius_, Jenyns 536 _Cimex ciliatus_, Eversmann, 1841 537 Family. _Reduviidæ_ 537 Genus. _Conorhinus_, Lap. 537 _Conorhinus megistus_, Burm. 537 _Conorhinus sanguisuga_, Lec. (Blood-sucking Cone-nose) 537 _Conorhinus, sp. novum_ (Monster Bug) 538 _Conorhinus rubrofasciatus_, de Geer (Malay Bug) 538 _Conorhinus renggeri_, Herr-Schäff (Great Black Bug of Pampas) 539 _Conorhinus variegatus_ (Variegated Cone-nose) 539 _Conorhinus nigrovarius_ 539 _Conorhinus protractus_ 539 Genus. _Reduvius_, etc. 539 _Reduvius personatus_, Linné 539 _Coriscus subcoleoptratus_, Kirby, 1837 540 _Rasahus biguttatus_, Say, 1831 540 _Melanolestes morio_, Erichson, 1848 (non-Walker) 540 _Melanolestes abdominalis_, Herrich-Schäffer, 1848 540 _Phonergates bicoloripes_ 541 Family. _Aradidæ_ 541 _Dysodius lunatus_, Fabr. (Pito Bug) 541 The Ochindundu 541 Family. _Lygæidæ_ 541 _Lyctocoris campestris_, Fabricius 541 _Rhodinus prolixus_, Stål, 1859 541 Order. _Orthoptera_ 542 Locusts Injurious to Man 542 Order. _Coleoptera_ 542 _Silvanus surinamensis_, Linnæus (Saw-toothed Grain Beetle) 542 Order. _Diptera_ 543 _Aphaniptera_ or _Siphonaptera_ (Fleas) 543 Family. _Sarcopsyllidæ_ (Jiggers) 543 Genus. _Dermatophilus_, Guérin 544 _Dermatophilus cæcata_, Enderl. 544 _Dermatophilus penetrans_, L., 1758 (Jigger, Chigoe) 544 Genus. _Echidnophaga_, Olliff 544 _Echidnophaga gallinacea_, Westwood (Chigoe of Fowls) 544 Family. _Pulicidæ_ (True Fleas) 545 Genus. _Pulex_, Linn. 545 _Pulex irritans_, L., 1758 545 Genus. _Xenopsylla_, Glink 546 _Xenopsylla cheopis_, Rothschild 546 _Xenopsylla brasiliensis_, Baker 547 Genus. _Ctenocephalus_, Kolenati 547 Genus. _Hoplopsyllus_, Baker 547 _Hoplopsyllus anomalus_, Baker 547 Genus. _Ceratophyllus_, Centis 547 _Ceratophyllus fasciatus_, Bosc 547 Genus. _Ctenopsylla_, Kolenati 548 Genus. _Hystrichopsylla_, Taschenberg 548 _Pulex pallipes_ 548 SYSTEMATIC ANATOMICAL AND BIOLOGICAL REMARKS ON MOSQUITOES 548 CULICIDÆ OR MOSQUITOES 555 _The Classification of Culicidæ_ 561 _Notes on the Different Genera_ 566 Sub-family. _Anophelina_ 566 Genus. _Anopheles_, Meigen 566 Genus. _Myzomyia_, Blanchard; _Grassia_, Theobald 567 Genus. _Neomyzomyia_, Theobald 567 Genus. _Cycloleppteron_, Theobald 567 Genus. _Feltinella_, Theobald 567 Genus. _Stethomyia_, Theobald 567 Genus. _Pyretophorus_, Blanchard; _Howardia_, Theobald 567 Genus. _Myzorhynchella_, Theobald 568 Genus. _Manguinhosia_, Cruz (in Peryassu) 568 Genus. _Chrystya_, Theobald 568 Genus. _Lophoscelomyia_, Theobald 568 Genus. _Arribalzagia_, Theobald 568 Genus. _Myzorhynchus_, Blanchard; _Rossia_, Theobald 568 Genus. _Nyssorhynchus_, Blanchard; _Laverania_, Theobald 569 Genus. _Cellia_, Theobald 569 Genus. _Neocellia_, Theobald 569 Genus. _Kertészia_, Theobald 569 Genus. _Manguinhosia_, Cruz 569 Genus. _Chagasia_, Cruz 570 Genus. _Calvertina_, Ludlow 570 Genus. _Birónella_, Theobald 570 Sub-family. _Megarhininæ_ 570 Genus. _Megarhinus_, Robineau Desvoidy 570 Genus. _Toxorhynchites_, Theobald 570 Sub-family. _Culicinæ_ 571 Genus. _Mucidus_, Theobald 571 Genus. _Psorophora_, Robineau Desvoidy 571 Genus. _Janthinosoma_, Arribalzaga 571 Genus. _Stegomyia_, Theobald 571 _Stegomyia fasciata_, Fabricius (Yellow Fever Mosquito) 574 _Stegomyia scutellaris_, Walker 575 Genus. _Theobaldia_, Neveu-Lemaire 575 _Theobaldinella_, Blanchard 575 _Theobaldia annulata_, Meigen 575 Genus. _Culex_, Linnæus 575 Genus. _Melanoconion_, Theobald 576 Genus. _Grabhamia_, Theobald 576 Genus. _Pseudotæniorhynchus_, Theobald; _Tæniorhynchus_, Theobald, non-Arribalzaga 576 Genus. _Tæniorhynchus_, Arribalzaga; _Mansonia_, Blanchard; _Panoplites_, Theobald 577 Genus. _Chrysoconops_, Goeldi 577 _Other Nematocera_ 577 Family. _Simulidæ_ 577 Family. _Chironomidæ_ (Midges) 579 Sub-family. _Ceratopogoninæ_ 580 Family. _Psychodidæ_ (Owl Midges) 581 _Brachycera_ (Flies) 582 Family. _Phoridæ_ 582 _Aphiochæta ferruginea_, Brun 583 _Phora rufipes_, Meig. 583 Family. _Sepsidæ_ 583 _Piophila casei_, L. 583 Family. _Syrphidæ_ (Hover and Drone Flies) 583 Family. _Drosophilidæ_ 584 _Drosophila melanogaster_, Br. 584 Family. _Muscidæ_ 584 _Teichomyza fusca_, Macq.