. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 157. 554 A MINUTISIMELLA 555 A COLLATA Figs. 550-556.—Neotrichia, female genitalia. A, eighth sternite; 5, bursa copulatrix. 13. Apex of bursa copulatrix forming a long, narrow, tapered rod, figs. 554, 555 14 Apex of bursa copulatrix forming a wide, bilobed structure, fig. 556. . 15 14. Median portion of bursa copulatrix with a pair of sclerotized projections at base of apical rod, fig. 554 tninutisimella, p. 157 Median portion of bursa copulatrix en- tirely membranous, without pro- jections, fig. 555 col
. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 157. 554 A MINUTISIMELLA 555 A COLLATA Figs. 550-556.—Neotrichia, female genitalia. A, eighth sternite; 5, bursa copulatrix. 13. Apex of bursa copulatrix forming a long, narrow, tapered rod, figs. 554, 555 14 Apex of bursa copulatrix forming a wide, bilobed structure, fig. 556. . 15 14. Median portion of bursa copulatrix with a pair of sclerotized projections at base of apical rod, fig. 554 tninutisimella, p. 157 Median portion of bursa copulatrix en- tirely membranous, without pro- jections, fig. 555 collata, p. 159 15. Eighth sternite sclerotized and dark- ened to form a distinct V, fig. 556. okopa, p. 158 Eighth sternite slightly sclerotized but not darkened; without an evident V-shaped pattern vibrans, p. 159 Neotrichia minutisimella (Chambers) Cyllene minutisimella Chambers (1873, p. 125); cf. Larva (mature type).—In general shape similar to fig. 557. Length 2 mm. Head somewhat cone shaped, narrowed toward front. Legs short but slender. Abdomen abruptly enlarged at juncture of thorax, the second segment slightly the widest and the abdomen tapering almost evenly from that point to the end; lateral margins with a delicate, small fringe of hair. Anal hooks situated on short, stubby but distinct "; Case.—Short and elliptic, tapered at the base without a bottom opening; composed. 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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