The Comparative Morphology of the Order Strepsiptera; Together with Records and Descriptions of Insects (Paperback)

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. 1918 Excerpt: ... Base of head 0.59 as wide as cephalothorax at spiracles; base of cephalothorax 0.70 breadth at spiracles; length of cephalothorax 1.09 breadth at spiracles (Stylops, group 11) oklahomae. (c) Base of head 0.60 as wide as cephalothorax at spiracles; base of cepha lothorax 0.80 breadth at spiracles; length of cephalothorax 1.06 breadth at spiracles (Stylops, group 11) salictariae. (d) Base of head 0.62 as wide as cephalothorax ut spiracles; base of cepha lothorax 0.73 breadth at spiracles; length of cephalothorax 1.04 breadth at spiracles (Stylops, group 11) andrenoides. (e) Base of head 0.61 as wide as cephalothorax at spiracles; base of eepha lothorax 0.75 breadth at spiracles; length of cephalothorax 1.08 breadth at spiracles; outer apical angle of mandible strongly rounded, apex emarglnate between angle and tooth (Stylops, group 11). medionitans. 22. Base of head 0.57 as wide as cephalothorax at spiracles; base of cepha lothorax 0.69 breadth at spiracles; length of cephalothorax 1.08 breadth at spiracles (Neostylops, group 2) solidulae. 23. (a) Mandibles with apical tooth or sharp angle, but without lateral angle-24 (6) Mandibles with apical tooth and an angle on lateral margins 29 24. (a) Cephalothorax broader than long or exactly as long as broad; base of head 0.59 as broad as cephalothorax at spiracles 25 (6) Cephalothorax longer than broad 26 25. (a) Mandibles broadly rounded, toothed near inner apical angles; breadth at base of mandibles 0.40 as broad as cephalothorax at spiracles; base of cephalothorax 0.77 breadth at spiracles (Stylops, group 12) sinuatus. (6) Mandibles subquadrate with apical tooth pointed outward; breadth at base of mandibles 0.31 as broad as cephalothorax at spiracles; base of cephalothorax 0.73 breadth at spiracles (Stylops, gr...