Items related to Contributions to biology from the Hopkins Seaside Laboratory...
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1899 Excerpt: ... form belongs to the group zonati, of Piaget (Les Pediculines p. 187) and shows but slight differences from several of the species of this group already described, one or two from the same host, indeed; but on the other hand Nitzsch's and Piaget's species differ among themselves but little, and the American specimens differ quite as much from any described species. In fact they are interesting as showing a combination of several characters which are presented as diagnostic of cingulatus (the interrupted first abdominal band), zonarius (the hairs and spines of the temples, and the head longer than wide), and scalaris (the size). In addition they present characters (metathoracic hairs, et al.) which are not shown by any one of the described species. I describe the American form therefore as a new species. The group needs revision; probably four or five of the present species should be reduced to varieties of the oldest named form, i. e. cingidatus. Description of the female. Body, length 1.71 mm., width.5 mm.; readily distinguishable by its general dark color, and rounding, uncolored clypeus with the distinct colored signature, on each side of which lie the narrow triangular projections of the anterior ends of the antennal bands; the posterior ends of the antennal bands bend so strongly in at the suture that they mark the fore part of the head off from the hind part into a small cone. Head, length.4 mm., width.34 mm.; elongate, triangular, with clypeus broadly rounding, the uncolored region slightly expanded beyond the suture; two short hairs on the rounding margin of the uncolored clypeus, one rather long hair in front of the trabecular trabeculae prominent, angular, reaching beyond the first joint of the antenme; antenme short, reaching barely twothirds of t...
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- PublisherGeneral Books LLC
- Publication date2012
- ISBN 10 1153921340
- ISBN 13 9781153921343
- BindingPaperback
- Number of pages100
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