234 IOWA ACADEMY OF SCIENCES. 



Fig, 2. D. in/Jattis n. sp. a, dorsal view; b, face; c, vertex and pronotum; d, female; e, 



male, genitalia; /, wing; g, abdomen of male, lateral view. 

 Fig. 3. D. pectinatus a, dorsal view; b, face; c, vertex and pronotum; d, male, e, 



female, genitalia; /, wing; y, larva. 

 Fig. 4. D. abhreviatus n. sp. a, dorsal view; h, face; e, vertex and pronotum; d, female, 



6, male, genitalia; /, wing; g, larva. 



PLATE XXIII. 



Fig 1. -D. albidus n. sp. a, dorsal view; b, face; c, vertex; d, female, e, male, genitalia; 



/, wing; g, larva. 

 Fig. 3. D. sayi Fh. a, dorsal view; h. face; c, vertex and pronotum; d, female, e, male, 



genitalia; /, wing; g, larva. 

 Fig. 3. D. eonflguratus Uh. a, dorsal view; h, face; c, vertex and pronotum; d, female, 



e, male, genitalia; /, wing; g, larva. 

 Fig. 4. D. oculatus n. sp. a, dorsal view; h, face; c, vertex and pronotum; d, female, 



e, male, genitalia; /, wing; g, larva. 



PLATE XXIV. 



Fig. 1. D. melscheimeri Fh. a, dorsal view; h, face; c, vertex and pronotum; d, female, 



e, male, genitalia; /, wing; g, larva. 

 Fig. 2. D, debilis Uh. a, dorsal view; b, face; c, vertex and pronotum; d, female, e, 



male, genitalia; /, wing; g, lateral view of head. 

 Fig. 3. D.inimicus Say. a, dorsal view; h, face; c, vertex and pronotum; d, female, e, 



male, genitalia; /, wing; g, larva. 

 Fig. 4. D. minimus n. sp. a, dorsal view; b, face; c, vertex and pronotum; d, female, 



e, male, genitalia; /, wing; g, larva. 



PLATE XXV. 



Fig. 1. D. signatifrons Van D, a, dorsal view; b, face; c, vertex and pronotum; d, 



female, e, male, genitalia; /, wing. 

 Fig. 2. D. weedi Van D. a, dorsal view; b, face; c, vertex and pronotum; d, female, e, 



male, genitalia; /, wing. 

 Fig. 3. D compactus n. sp. a, dorsal view; b, face; c, vertex and pronotum: d, female, 



6, male genitalia; /, wing. 

 Fig. 4. D. sylvestria n sp. a, dorsal view; b, face; c, vertex and pronotum; d, female, 



e, male, genitalia; /, wing. 



PLATE XXVI. 



Fig. 1. Platymetopius cinereus n. sp. dorsal view la larva. 



Fig. 2. Athysaniis magnus n. sp. dorsal view. 



Fig. 3. Athysanue colon n. sp. dorsal view, 3a wing, 3b larva. 



Fig. 4. Chlorotettix spatulata n. sp. dorsal view 4a female, ultimate ventral segment. 



Fig. 5. Phlepsi^is alius n. sp. female ultimate ventral segment 5a male genitalia. 



Fig. 6. Phlepsius majesius n. sp. ultimate ventral segment of female, 6a genitalia of 



male. 

 Fig 7. Phlepsius deconis n. sp. ultimate ventral segment of female, 7a genitalia of 



male. 



NOTES ON THE ORTHOPTEROUS FAUNA OP IOWA. 



BY E. D. BALL. 



As a family the Orthoptera have long been regarded as 

 among the most injurious insects of the state. Every addition, 

 therefore, to a list of species adds one more to the number of 

 possible depredators of a given locality. On the other hand, 

 every fact in regard to distribution, life-history or food habiis 

 of a species, added to the general knowledge, aids in formulat- 

 ing successful methods of treatment for the particular species. 



