. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 97 1. Tarsi three-jointed. (Fig. 135). (TRIMERA) 2 Tarsi two-jointed. (Fig. 126). (DIMERA) 10. Figs. 125-136. Corrodentia 125. Psocus, wings (Comstock and Needham) Psocidse. 126. Csecilius, tarsus (Tillyard) Cseciliidae. 127. Lepinotus (Tillyard) Atropidse. 128. Oxypsocus, wings (Tillyard) Lepidopsocidse. 129. Perientomum, wings (Enderlein) Perientomidae. 130. Embidotroctes, wings (Kolbe) Troctidae. 131. Caecilius, wings (Tillyard) Caeciliidse. 132. Thyrsophorus, wings (En
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 97 1. Tarsi three-jointed. (Fig. 135). (TRIMERA) 2 Tarsi two-jointed. (Fig. 126). (DIMERA) 10. Figs. 125-136. Corrodentia 125. Psocus, wings (Comstock and Needham) Psocidse. 126. Csecilius, tarsus (Tillyard) Cseciliidae. 127. Lepinotus (Tillyard) Atropidse. 128. Oxypsocus, wings (Tillyard) Lepidopsocidse. 129. Perientomum, wings (Enderlein) Perientomidae. 130. Embidotroctes, wings (Kolbe) Troctidae. 131. Caecilius, wings (Tillyard) Caeciliidse. 132. Thyrsophorus, wings (Enderlein) Thyrsophoridse. 133 Vulturops, wings (Corbett and Hargreaves) Psoquillidae. 134. Mesopsocus, wings (Tillyard) Mesopsocidae. 135. Myopsocus, tarsus (Tillyard) Myopsocidse. 136. Troctes (Marlatt) Trocticte. 2. Thorax composed of three distinct parts, the mesothorax separated from the metathorax by a suture; usually winged, rarely with the wings reduced or absent 3. 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 Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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