Elementary lessons on insects elementarylesson00need Year: 1928 40 ELEMENTARY LESSONS ON INSECTS 2. Black field crickets that live on the ground. 3. Mole crickets that live in the ground in burrows. The tree crickets are most like the long-horns just dis- cussed, but are smaller and more delicately built insects, having in the females an ovipositor that is spear-like rather then sword- like (not laterally flattened), and 3-jointed tarsi. The wings lie flat on the back. The males are prone to incessant chirping dur- ing late summer and autumn. The Orthoptera allies, cock- roaches, mantids and
Elementary lessons on insects elementarylesson00need Year: 1928 40 ELEMENTARY LESSONS ON INSECTS 2. Black field crickets that live on the ground. 3. Mole crickets that live in the ground in burrows. The tree crickets are most like the long-horns just dis- cussed, but are smaller and more delicately built insects, having in the females an ovipositor that is spear-like rather then sword- like (not laterally flattened), and 3-jointed tarsi. The wings lie flat on the back. The males are prone to incessant chirping dur- ing late summer and autumn. The Orthoptera allies, cock- roaches, mantids and walking- sticks are all few in kinds. One, the cockroach, is only too well known. The others are so unique in form that they are all in- stantly recognizable by a re- ference to figure 15. A brief outline for the study of re- presentatives of these groups is provided in the following lesson: Fig 15.—Two Orthopteran al- lies A, a praying mantis; B, a walking-stick.
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