Read this article in Hindi to learn about the economic importance of arthropoda. प्राणिजगत् के कुल प्राणियों में से लगभग 75% आर्थोपोडा समूह के है । आर्थोपोडा में कुल चार प्रकार के जन्तु-समूहों का समावेश है: 1. वर्ग-क्रस्टेशिया (Crustacea): केकड़े, झिंगे, आदि । 2. वर्ग-मिरिआपोडा (Myriapoda): सेन्टीपीड, मिलीपीड आदि। 3. वर्ग-इन्सेक्टा (Insecta): कॉकरोच, मच्छर, मक्खी, खटमल, जूं, मधुमक्खी, रेशम एवं [...]
In this article we will discuss about the salivary glands of cockroach with the help of diagram. Fig. 154 SALIVARY GLANDS OF COCKROACH 1. It is the slide of salivary glands of Cockroach. 2. These glands are paired and white structures and are situated one on either side of crop in the prothoracic region. 3. The salivary glands, as [...]
In this article we will discuss about the structure of silver fish (Lepisma) with the help of diagram. Fig. 146 SILVER FISH (LEPISMA) 1. It is a very common insect found among books, behind picture frames, among leaves& under stones etc. and is commonly called silver fish. 2. Body fattened, delicate and is covered over with delicate silvery scales. 3. [...]