Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . 435 ligula : /, mentum ; g, prosternum, front, and /<, side view ; ?,under side of the rest of the body, showing the six ventral seg-ments of the abdomen ; J, anterior tarsus : from Horn) foundin Northern California, is the sole representative of this familyand differs from the preceding family in the metasternum be- /- d i i. Fig. 379. ing truncate behind, and not reaching the abdomen. A. inso/(-//.s- Lee. is an anomalous form, being subaquat
Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . 435 ligula : /, mentum ; g, prosternum, front, and /<, side view ; ?,under side of the rest of the body, showing the six ventral seg-ments of the abdomen ; J, anterior tarsus : from Horn) foundin Northern California, is the sole representative of this familyand differs from the preceding family in the metasternum be- /- d i i. Fig. 379. ing truncate behind, and not reaching the abdomen. A. inso/(-//.s- Lee. is an anomalous form, being subaquatic, and in itsstructure and habits connecting the Car a bid IK with the suc-ceeding family. McLeay. The Diving Beetles, or AVater Tigers,are oval flattened elliptical beetles, which differ from the Car-<(hid<ij in the form of the hinder coxa*, which are Aery large,touching each other on the inner edge, and externally reachingthe side of the body, entirely cutting off the abdominal seg-ments from the metathorax, while the oar-like swimming legsare covered with long hairs, and the hinder pair are much flat-tened. The larvae are called water tigers, being long, cy-lindrical, with large flattened heads, armed with scissor-likejaws with which they seize other insects, or snip off the tailsof tadpoles, while they are even known to attack young fishes,sucking their blood. They are known to moult several times,four or five days intervening between the first tw
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
