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Many details must be discussed between the artist and scientist before a final drawing can be completed, and additional preliminary drawings must be prepared in order to work out aesthetic details. Pen and ink (often a flex nib fountain pen) line illustrations are clean, crisp, clear, and inexpensive to produce, making them ideal for biological ...
The species has well developed canine teeth, which protrude from the mouths of adult males. The medial hooves are larger and more elongated than the lateral ones and are capable of quick movements. [4] The animal can run at a maximum speed of 40 km/h (25 mph) and jump at a height of 140–150 cm (55–59 in). [11]
The outer surfaces are convex and in most species are deeply sculpted into sharp grinding surfaces with which the animals bore their way through the wood or similar medium in which they live and feed. The valves of shipworms are separated and the aperture of the mantle lies between them. The small "foot" (corresponding to the foot of a clam ...
The adult oak pinhole borer is between 6 and 8 mm (0.2 and 0.3 in) long, being cylindrical In cross section (hence cylindrus) and, seen from above, shaped like a long, narrow rectangle. Its colour is very deep brown to black. The larvae are yellowish-white, legless grubs. [1]
The wingspan of the male is 18–22 mm and the female is 34 mm. [2] Adult males are smaller than the females. Males are brownish ochreous. Forewings irrorated (sprinkled) with dark scales and with the veins slightly streaked with fuscous. A black spot found at lower angle of cell.
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Bookworm is a general name for any insect that is said to bore through books. [ 1 ] [ 2 ] The damage to books that is commonly attributed to "bookworms" is often caused by the larvae of various types of insects, including beetles , moths , and cockroaches , which may bore or chew through books seeking food.