308 



Subfamily MYODOCHINA. 



Ptochiomera, Say. 



1. P. nodosa. 



Piocliiomera nodosic, Say, Heteropt. New HarmoDv, 18; Complete Writino-s, i, 



335, No. 9. 

 Aplianus davatus, DaPas, Brit. Mus. List Hemipt. ii, 560, No. 5. 

 Flociomem nodosa, Sttil, Enumeratio Hemipt. iv, 153, No. 3. 



Inhabits Texas, Missouri, Louisiana, Florida, Greorgia, &c. 



In Maryland, it is common beneath stones, and is one of the first to 

 become active in spring when the severe cold of winter is past. In 

 the autumn, it may be met with beneath the stems of dried or drying 

 plants and bushes which have dropped their leaves. 



The short-winged form is common in the granitic and primitive 

 regions of this State, but it is generally full-winged in the newer and 

 more southern portions of this region, while farther south it is always (!) 

 full-winged. 



2. P. minima. 



Lyganis {Beosus) minimus, Guer., in La Sagra's Hist, de Cuba, Ids. 398. 

 Plociomeva minima, Stal, Eoumeratio Hemipt. ii, 153. 



Inhabits Cuba, Florida, Louisiana, and Texas. 



3. P. puberula. 



Flodomera jiuhcniJa, Stal, Enumeratio Hemipt. iv, 153, No. 8. 



Inhabits Texas. 



4. F.fuscicornis. 



Plociomera fttscicornis, Stal, Enumeratio Hemipt. iv, 152, No. 2. 



Inhabits Texas. 



Cnemodus, H.-Schf. 

 C. mavortius. 



Astemma mavortia, Say, Heteropt. New Harmony, 19; Complete Writings, i, 337* 

 Cnemodus 'brevipennis, H.-Schf., Wanz. Ins. ix, 184, fig. 948. 



Inhabits Texas, Missouri, and the Atlantic region throughout. In 

 Maryland, it is common beneath stones and rubbish from March to No- 

 vember. 



Carpilis, Stal. 

 C. ferruginea. 



Carpilis fervuginea, Slal, Enumeratio Hemipt. iv, 153, No. 1. 

 Inhabits Texas and New Mexico. * 



LiGYEOCORIS, StM. 



1. L. sylvestris. 



Cimex sylvestris, Linn., Faun. Suec. 2.56. 



Plodomerus sylvestris, Fieb., Europ. Hemipt. 171. 



Plodomerus diffusus, Uhler, Proc. Boston Soc. Nat. Hist. 1871, 9. 



Pamera contrada, Say, Heteropt. New Harmony, 16, No. 2. 



Inhabits almost the whole continent of North America, and not uii 

 common in various parts of continental Europe. 



We have examined specimens which were collected in British and 



