. Annals of the Entomological Society of America. Entomology. 122 Annals Entomological Society of America [Vol. XIII, The total length of these setae, in Neuroctenus simplex (Uhl), is approximately six millimeters. In this species they prac- tically equal the total length of the insect. The extent that these may be protruded is not known. The same arrangement has been found in all species of the family which have been examined, some six species. It is also found in the nymphs. The biology of these interesting insects is but imperfectly known. Of course, they are found exclusively under com- pa
. Annals of the Entomological Society of America. Entomology. 122 Annals Entomological Society of America [Vol. XIII, The total length of these setae, in Neuroctenus simplex (Uhl), is approximately six millimeters. In this species they prac- tically equal the total length of the insect. The extent that these may be protruded is not known. The same arrangement has been found in all species of the family which have been examined, some six species. It is also found in the nymphs. The biology of these interesting insects is but imperfectly known. Of course, they are found exclusively under com- paratively loose bark and supposedly feed upon the juices of. Fig. 1. Longisection of head of Neuroctenus simplex (Uhl). (Diagramatic). cl—Clypeus; hm—Hemimaxilla; lb—Labium; Ir—Labrum; md—Mandible; mx—Maxilla. decaying wood and bark. Their methods of feeding are unknown, in fact, their very food supply is probably only inferred. We are therefore unable to state what purpose, if there be a special purpose, this modification serves. It may be well to mention here the fact, as pointed out by Reuter,* that the labium consists of four segments instead of three, as given in most of the American texts and tables. *Reuter, O. M., Neue Beitrage zut Phylogenie und Systematik der Miriden. Acta Soc. Sc. Fenn. T. 36, No. 3, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of America. [College Park, Md. , etc. ] : Entomological Society of America
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