DIY History | Transcribe | Scholarship at Iowa | The terrestrial Adephaga of Iowa (Part 1) by Fanny Chastina Thompson Wickham, 1895 | The terrestrial Adephaga of Iowa by Fanny Chastina Thompson Wickham, 1895, Page 13

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The terrestrial Adephaga of Iowa (Part 1) by Fanny Chastina Thompson Wickham, 1895

The terrestrial Adephaga of Iowa by Fanny Chastina Thompson Wickham, 1895, Page 13

Many different divisions of Coleoptera have been proposed by entomologists but the one most commonly adopted in this country is that given by Leconte and Horn which is as follows:—
1. Coleoptera (genuina) having the mouth parts normal, atrophied rarely, but never departing from the ordinary type. Palpi always flexible, maxillary usually four-jointed, labial three-jointed. Gular sutures double at least before and behind. Prosternum not cut off behind by the epimera (except in some Colydiidae, and in Cossyphus); prosternal sutures distinct.
2. Rhynchophora having the head more or less prolonged into a beak: the palpi rigid (except in Rhinomaceridae and Anthribidae), without distinct palparium; maxillary four-jointed, labial three-jointed; labrum absent, except in Rhinomaceridae and Anthribidae. Gular sutures confluent on the median line. Prosternum cut off behind by the epimera; prosternal sutures wanting. Epipleurae of the elytra wanting, except in Rhynchitidae and Attelabidae.

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Many different divisions of Coleoptera have been proposed by entomologists but the one most commonly adopted in this country is that given by Leconte and Horn which is as follows:— 1. Coleoptera (genuina) having the mouth parts normal, atrophied rarely, but never departing from the ordinary type. Palpi always flexible, maxillary usually four-jointed, labial three-jointed. Gular sutures double at least before and behind. Prosternum not cut off behind by the epimera (except in some Colydiidae, and in Cossyphus); prosternal sutures distinct. 2. Rhynchophora having the head more or less prolonged into a beak: the palpi rigid (except in Rhinomaceridae and Anthribidae), without distinct palparium; maxillary four-jointed, labial three-jointed; labrum absent, except in Rhinomaceridae and Anthribidae. Gular sutures confluent on the median line. Prosternum cut off behind by the epimera; prosternal sutures wanting. Epipleurae of the elytra wanting, except in Rhynchitidae and Attelabidae.