2 HEMIPTERA-HETEROPTERA. 
be ascertained without taking the insects off the cards upon which they are mounted. 
The males of some (or perhaps all) of the species have a pair of curved, clasping, pincer- 
like processes at the end of the abdomen *. 
In some of the figures on Tab. II. our artist has incorrectly placed the left elytron 
uppermost: the right elytron usually overlaps in repose, but this is not always the case. 
We are indebted to Prof. Aurivillius, of the Stockholm Museum, for the loan of 
many of Stal’s types, including those of all his American genera; also to Herr A. 
Handlirsch for the whole of the Mexican Tingitide belonging to the Vienna Museum. 
Subfam. PIESMINA. 
PIESMA. 
Piesma, Lepelletier de St.-Fargeau and Serville, Encycl. Méthod. x. p. 653 (1825) ; Stal, Enum. 
Hemipt. iii. p. 115. 
Zosmenus, Laporte, Essai class. syst. des Hémipt. (in Guérin’s Mag. Zool.) p. 49 (1832); Fieber, 
Europ. Hemipt. pp. 35, 116. 
Aspidotoma, Curtis, Ent. Mag. i. p. 196 (1833). 
Zosmerus, Douglas and Scott, Brit. Hemipt. p. 237 (1865). 
A widely distributed genus, with very closely-allied forms in Europe and North 
America. 
1. Piesma cinerea. 
Tingis cinerea, Say, Descr. Heteropt. Hemipt. (New Harmony, Indiana, Dec. 1831) °; Trans. New 
York State Agric. Soc. 1857, p. 793°; Complete Writings, i. p. 349 *. 
Piesma cinerea, Stal, Enum. Hemipt. iii. p. 116‘. 
Hab. Norts America, United States !~3, Illinois *+—Guatema.a, Panajachel, Zapote, 
Capetillo, Duefas, Guatemala city, San Gerénimo (Champion). 
Ten examples, not differing from a North-American specimen in the British Museum. 
Subfam. TINGITINAL. 
Group CANTACADERINI. 
PHATNOMA. 
Phatnoma, Fieber, Ent. Monogr. pp. 30, 57 (1844) ; Stal, Enum. Hemipt. iii. p. 117. 
The type of this genus is P. laciniata, Fieb., from the ‘‘ Kast Indies.” 
The three Central-American species referred to it agree well with Fieber’s structural 
figures, except that the middle coxe are not so widely separated from the hind coxe 
and the margins of the pronotum are less acutely bispinous. They agree in the 
following particulars :— 
* Figured by Fieber, Géldi, and A. Dugés. 
