. Studies in natural history. Natural history; Natural history. 26 IOWA STUDIES IN NATURAL HISTORY conspicuous. Antennae less than one-half as long as primaries, club relatively smaller and thicker than in Goniwrus, and more broadly curved, with the apiculus less distinct. Primaries with the apex subtruncate, outer margin concave below apex. Cell about three-fourths as long as wing; recurrent vein nearer to vein 3 than to vein 4; bases of 3 and 4 much farther apart than M. D. C. and L. D. C. combined. Costal fold present in our species. Fig. 7. Type: Eudamus albofasciatus Hewitson. Catillus, a
. Studies in natural history. Natural history; Natural history. 26 IOWA STUDIES IN NATURAL HISTORY conspicuous. Antennae less than one-half as long as primaries, club relatively smaller and thicker than in Goniwrus, and more broadly curved, with the apiculus less distinct. Primaries with the apex subtruncate, outer margin concave below apex. Cell about three-fourths as long as wing; recurrent vein nearer to vein 3 than to vein 4; bases of 3 and 4 much farther apart than M. D. C. and L. D. C. combined. Costal fold present in our species. Fig. 7. Type: Eudamus albofasciatus Hewitson. Catillus, a Central American species, and albofasciatus are very closely related, and agree in the form of the male genitalia. Zilpa differs somewhat in the form of the wings and the male genitalia, but on the whole it is apparently related to the other species, and with them distinct from Goniurus. The difference is scarcely greater than between proteus and simplicius. 1. CHIOIDES ALBOFASCIATUS Eudamus albofasciatus Hew., Besc. Hesp. 3, 1867. Biol. , Ehop. n, 280, pi. 75, f. 11, $ gen., 1893. Skinner, Trans. Am. Ent. Soc. xxxvn, 197, 1911. Texas, March. Arizona, July and September. Distinguished from zilpa by the long narrow white band on the under surface of the secondaries. 2. CHIOIDES ZILPA (Plate I, Fig. 5) Goniurus zilpa Butler, Lep. Exot. 109, t. XL, f. 2, 1872. Biol. , Ehop. n, 279, pi. 75, f 8, $ gen., 1893. Patagonia Mts., Arizona, May. Kerrville, Tex., September. Genus CODATRACTUS nom. nov. Heteropia Mabille, Le Nat. 1889, 68. Type Heteropia imitatrix Mab. Preoccupied in sponges by Heteropia Carter, Ann. &Mag. Nat. Hist. (5), xvm, 47, 1886. Structure in general similar to Chioides but with veins 3 and 4 of the primaries not so far apart at their bases as the combined length of the two discocellulars and the recurrent vein nearer to 4 than to 3. The an- Detaii7 of^n^atlon^end *¥5S of tennal club is fusiform, more or less ¥t^driG$^JS^&Z: sharply bent n
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