. Bulletin. Natural history; Natural history. Nov., 1980 Irwin & Lyneborg: The Genera of Nearctic Therevidae 237 Krober 1914:45 by present designa- tion. Type-locality: San Jose del Cabo, Baja California, Mexico. Diagnosis Moderately large-sized, slender species. Head. — Frons of male at its narrow- est much narrower than half width of anterior ocellus; frons of female at level of anterior ocellus X as wide as ocellar tubercle; male frons raised, with brownish-gray tomentum and long, black pile over entire surface; female frons has brownish-gray tomentum, unpattemed, slightly conca


. Bulletin. Natural history; Natural history. Nov., 1980 Irwin & Lyneborg: The Genera of Nearctic Therevidae 237 Krober 1914:45 by present designa- tion. Type-locality: San Jose del Cabo, Baja California, Mexico. Diagnosis Moderately large-sized, slender species. Head. — Frons of male at its narrow- est much narrower than half width of anterior ocellus; frons of female at level of anterior ocellus X as wide as ocellar tubercle; male frons raised, with brownish-gray tomentum and long, black pile over entire surface; female frons has brownish-gray tomentum, unpattemed, slightly concave in middle, and has short, appressed pile on upper two-thirds; head rather prominently protrudes anteriorly at antennal level; head depth antennal length (Fig. 23) ; scape slender, X as long as flagelluin; first flagel- lomere constricted at base; flagellar style long, slender, two segmented, with a dis- tinct, terminal spine; palps one seg- Fig. 142-147. — Rbagioforma maculipennis (Krob.) male terminalia. 142. — Right gonocoxite with appendages and aedeagus in dorsal view, 143. — Epandrium with oppendages in dorsal view. 144.— 'Epondrium with appendages in ventral view. 145. — Aedeagus in lateral view. 146.—Tergite 8. 147.—- Sternite 8. Scale: 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 Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division


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