. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 215. CANDIDA 75IC DIARINA SPILOMA Figs. 749-753.—Leptocella, male genitalia. A, lateral aspect; B, claspers; C, styles at base of claspers. species which have not yet been investigated sufficiently to determine their status. Such forms as coloradensis, iii/ervena and minuta have not been satisfactorily diagnosed. I have been unable to find any appreciable difference in the male genitalia of these. Experience with the Illinois fauna leads me to believe that until cultures of these other species are reared,
. Bulletin. Natural history; Natural history. August, 1944 Ross: Caddis Flies of Illinois 215. CANDIDA 75IC DIARINA SPILOMA Figs. 749-753.—Leptocella, male genitalia. A, lateral aspect; B, claspers; C, styles at base of claspers. species which have not yet been investigated sufficiently to determine their status. Such forms as coloradensis, iii/ervena and minuta have not been satisfactorily diagnosed. I have been unable to find any appreciable difference in the male genitalia of these. Experience with the Illinois fauna leads me to believe that until cultures of these other species are reared, or until additional adult characters are found, it will be unwise to attempt definite placement of these names. There is a very good possibility that many of them represent distinct species. Not until we know how many species exist and what are their limits can we satisfactorily diag- nose them. KEY TO SPECIES Larvae 1. Hind legs with only scattered hair. Head yellow with a definite V mark, as in fig. 744 albida, p. 220 Hind legs with a definite swimming brush of long hair, fig. 716. Head with either large, irregular brown areas or with parallel dark lines, figs. 745-748 2 2. Head with parallel dark lines which are carried back on the pronotum, fig. 745 diarina, p. 218 Head with irregular dark areas or a dark network, fig. 746 3 3. Middle and hind legs almost entirely black beyond coxae; dorsum of head with fine reticulations, fig. 746. . Pexquisita, p. 217 Middle and hind legs mostly yellow, at most with small dark areas; dor- sum of head with solid lines or areas of brown or black, figs. 747, 748. . 4 4. Legs pale, banded with dark brown or black sp. a, p. 221 Legs almost uniformly light colored. 5 5. Head with an open network of dark brown or black lines, fig. 747 pavida, p. 218 Head with more extensive dark areas as in fig. 748 Candida, p. 217 Adults 1. Genitalia with claspers and aedeagus, fig. 749 (males) 2. Please note that these images are extracted from scanned page
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