. Bulletin of the British Museum (Natural History) Entomology. . wUini TM i â t ,{ Hy/jK^ im mm. 3f " V J ft 1 ^H feC fen iT2S 1 Figs 3a-g Alabagrus species, a, stigma, ventral hind femur; b, tricarinatus, ventral hind femur; c, texanus, ventral hind femur; d, maculipes, apicolateral mid tibia; e, latisoma, lateral hind femur; f, versicolor, distal hind tibia; g, stigma, tarsal claw. Ridge laterad of the clypeus The presence of a ridge laterad of the clypeus is synapomorphic for three species of Alabagrus in which they occur in various strengths. This character state is not known in other
. Bulletin of the British Museum (Natural History) Entomology. . wUini TM i â t ,{ Hy/jK^ im mm. 3f " V J ft 1 ^H feC fen iT2S 1 Figs 3a-g Alabagrus species, a, stigma, ventral hind femur; b, tricarinatus, ventral hind femur; c, texanus, ventral hind femur; d, maculipes, apicolateral mid tibia; e, latisoma, lateral hind femur; f, versicolor, distal hind tibia; g, stigma, tarsal claw. Ridge laterad of the clypeus The presence of a ridge laterad of the clypeus is synapomorphic for three species of Alabagrus in which they occur in various strengths. This character state is not known in other agathidines. Shape of the occiput (Figs lb, d) Viewed dorsally, the shape of the occiput varies considerably. A sharply excavated occiput, an apomorphic character state, is important to distinguish a small group of species. This condition is similar to that found in Aerophilus brullei Szepligeti and several undescribed species of Bassus. However, an unexcavated occiput (Fig. Id) is most widespread in the Agathidinae and present in all species of Pharpa. I therefore consider it to be the ground-plan state for Alabagrus. Carinae of frons (Figs la, b, d) The presence of lateral carinae on the frons is a character state that may be the ground-plan state for the Agathidinae because it is widespread within the subfamily. The carinae vary greatly in shape and different states of the character are easily defined. One such state is a synapomorphy for Pharpa plus Alabagrus (Fig. la). In members of these two genera the carinae are rounded, not greatly elevated, and they run in a rather straight line from the lateral and median borders of each antennal socket to the median ocellus. The plesiomorphic character state in Alabagrus is well-developed carinae, as in Pharpa (Fig. la). Some. 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 or
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