I 



26 John Todd Zhmner 



3. Size large (length, 5-6 mm) ; surface highly polished, punctures almost 

 obsolete on the dorsal surface; no distinct ridge on the corium 



as below unicolor 



3. Size averaging smaller; surface distinctly punctured; a prominent ridge 

 just within and parallel to the subcostal nervure of the corium, 



between it and the cubital nervure 4 



4. Corium more narrow; cubital suture with a distinct, impressed line 

 exterior and parallel to it, the line reaching nearly or quite to 

 the tip of the corium; form of insect more narrowed pos- 

 teriorly nitiduloides 



4. Corium broader; no line parallel to cubital suture and reaching tip 

 of corium; sometimes a subparallel row of punctures not reach- 

 ing tip ; form more nearly oval 5 



5. Abdomen without submarginal setae; margins not sinuate; reflexed 

 lateral margins of the pronotum becoming obsolete before the 



polished, tubercular humeri; form more elongate anthracina 



5. Margins ciliate; reflexed lateral margins of the pronotum reaching the 



humeral angles ; form very short oval ciliatiis 



6. Pale margin of corium narrowed at base, not crossing subcostal 



nervure at base lateralis 



6. Pale margin of corium broad at base 7 



7. Size larger (length about 4 mm) ; punctures distinct, regular; form 

 more elongate, not ciliate; genital segment of the male long. 



montanus 

 7. Size smaller ; punctures less distinct and genital segment of the male 



very short or else the form more rounded and ciliate .8 



8. Size smaller ; color black with pale markings ; form not ciliate. 



pulicarius 



8. Size larger; form more rounded and ciliate; color ferruginous 



marked with blackish; hemelytra and lateral pronotal margins 



white , sayi 



Thyreocoris unicolor (Palisot de Beauvois). 



1805. Scutellera unicolor Palisot de Beauvois, Ins., p. 33, Hem., pi. 5, 



fig- 5- 

 181 1. Tetyra helopioides Wolff, Ic. Cim., V, p. 174, fig. 168. 

 1843. Galgupha atra Amyot & Serville, Hem., p. 63. 



Confined to the eastern part of the state. Specimens are from 

 Lincoln, Nebraska City and Cedar Bluffs. 



(For a fuller discussion of the characters of this form, see the 

 following species.) 



244 



