IOWA ACADEMY OF SCIENCES. 233 



Stenocranus croceus Van D. Ames. 



Liburnia vittatifr'ons Uhl. Not common except in particular 

 locations. 



Scolops grossus Uhl. Common in 1896. 



Vanduzea arcuata Godg. Occurs on locust and usually very 

 abundant where found, Ames and Albia. 



Telamona godingi Van D. Ames. Not common. 



Stictocephala lutea "Walk. Common. Confused with inermis. 



Publilia modesta Uhl. 



Diaspis rosce. Muscatine. Very abundant and. destructive 

 to roses and other garden shrubs. A serious pest where it 

 occurs. 



E(ematopinu<^ pedalis Osb. An interesting parasite of sheep, 

 occurring on the feet and lower part of legs, but not on wooly 

 parts of the body. 



EuhcematopinuH abnormis Osb. A very peculiar parasite of the 

 common mole Scakps argentatus. The femora of the hind legs 

 bear disk-like processes which evidently oppose the tibiae of 

 the middle legs as a clasping organ. I have described it in 

 a bulletin on "The Insects Affecting Domestic Animals," 

 recently issued by the Div. Ent. U. S. Dep. Agriculture. 



EXPLANATION OF PLATES.* 



PLATE XIX. 



Fig. 1. Xerophloea viridis Fab. a, female, dorsal view; b, face; c, lateral view; d, larva; 



6, male; /, female, genitalia. 

 Fig. 2. Xestoceplmlu8 coronatus n. sp. female, dorsal view. 

 Fig. 3. Euacanthus acuminatus Fab. a, female; b, larva, dorsal views. 



PLATE XX. 



Fig. 1. Doryccphaliis platyrhyiichus Osh. a, female; h, male, dorsal view; c, face; d, 

 female, e, male genitalia; /, eggs in grass stem; (/, eggs enlar^^ed; h, eggs with 

 larva nearly ready to hatch; i, newly hatched larva; j, larva after first moult; k, 

 after second moult; I, pupa. 



Fig. 2. Hecalus lineatus Uhl. a, female; /*, male, c, larva, dorsal view; d, face; e, 

 female, /, male genitalia. 



PLATE XXI. 



Fls.':. 1. Parabolocratus viridia Uhl. a, male; b, female; c, mature larva, dorsal views; 



d, female; e, male genitalia; /, eggs In grass stem; g, eggs enlarged; h, single egg 



much enlarged, showing young; i, larva newly hatched; J, after first moult. 

 Fig. 2. Athysanus obtutus Van D. a, ventral; b, lateral: c, dorsal view of female; d, 



female; e, male, genitalia; /, pupa; g, eggs much enlarged; i, eggs in place under 



grass leaf sheath. 



PLATE XXII. 



Fig. 1. DeltoceplLdlus reilexus n. sp. a, dorsal view; b, face; c, vertex and pronotum; d, 

 female; e, male, genitalia; /, wing; ff, larva; h, face of larva. 



* All figures liere given are photo-reproductions of drawings made by Miss Char- 

 lotte M. King, under the personal direction and supervision of the authors. 



In plates xxii to xxv four species are shown on each plate, each one occupying one- 

 fourth of the plate, and being lettered independently, and in nearly every case the 

 letters correspond for each species, notice of which will avoid any possible confusion 

 In reference to figures. 



