. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. Pig. 185.—Prosterna of beetles. A, Coxal cavities (CC) confluent and open behind; B, coxal cavities Separated and open behind; C, coxal cavities separated and closed behind. (After Wickham.) DD. Penultimate joint of labial palpi with a number of bristly hairs in front and always longer than last joint; first antennal joint elongate; head elongate-oval, prolonged behind the eyes.—Galerita. BB. Head with but one bristle-bearing puncture above the eye. C. Elytra truncate at apex; mandible
. Class book of economic entomology. Insects, Injurious and beneficial. [from old catalog]; Insects; Insects. Pig. 185.—Prosterna of beetles. A, Coxal cavities (CC) confluent and open behind; B, coxal cavities Separated and open behind; C, coxal cavities separated and closed behind. (After Wickham.) DD. Penultimate joint of labial palpi with a number of bristly hairs in front and always longer than last joint; first antennal joint elongate; head elongate-oval, prolonged behind the eyes.—Galerita. BB. Head with but one bristle-bearing puncture above the eye. C. Elytra truncate at apex; mandibles with a bristle-bearing punc- ture in outer groove; hind coxse often separated.—Brachinus (Bombardier Beetle). CC. Elytra always entire; mandibles without a bristle-bearing puncture; hind coxa? contiguous. D. Antennae with only two basal joints glabrous; black, front tarsi of male dilated and with two rows of small scales beneath; first joint of hind tarsus not longer than the two following.—Harpalus. AA. Middle coxal cavities not entirely closed by the sterna (Fig. 185). B. Hind coxae not separated; labrum not forked; third joint of antennae cylindrical.—Carabus. BB. As in B, but third joint of antennae compressed.— Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lochhead, William, 1864- [from old catalog]. Philadelphia, P. Blakiston's son & co
Size: 1637px × 1525px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
