226 HEMIPTERA-HETEROPTERA. 
8. Ectrichodia cruciata. (Tab. XIII. fig. 21, 9, var.) 
Petalocheirus cruciatus, Say, Descr. of new sp. of Hemipt. Heteropt. (New Harmony, 1831) '; 
Complete Writings, i. p. 358 *. 
Ectrichodia cruciata, Stal, Enum. Hemipt. ii. p. 103°; Ubler, Bull. U.S. Geol. & Geogr. Surv. i. 
p. 329 (part.)*; Walk. Cat. Hemipt. Heteropt. viii. p. 56°. 
Ectrychotes bicolor, Herr.-Schaff. Wanz. Ins. viii. p. 53, t. 266. fig. 822 (1848) °. 
Ectrichodia media, Walk. Cat. Hemipt. Heteropt. viii. p. 62 (1873) ”. 
Hab. Nortu America! 2, Baltimore 6, Pennsylvania, Maryland and the region south 
and west into Texas? and New Mexico 4, Indiana! 25, Georgia 12%, New Orleans 7.— 
Mexico * (Mus. Vind. Cos.).—Cuxa, Havana (Bilimek, in Mus. Vind. Ces.). 
In the Vienna Museum collection there are two precisely similar females of an 
Ectrichodia—one labelled “Mexico” and the other Cuba—which are somewhat 
doubtfully referred to this species. They have the connexival segments broadly 
banded with black, the elytra very short and fuscous in colour, the pronotum without 
a transverse black spot on the disc of the posterior lobe in front, the legs in great 
part pale (the apices of the femora excepted), the post-ocular portion of the head 
broad, and the eyes small. 
Subfam. HAMMATOCERINA. 
This subfamily of Reduviide includes two American genera only. ‘They exhibit a 
very remarkable structure in the antennee, not found in any other known Heteropterous 
insects: the first joint is short and stout ; the second joint is very elongate, slender, and 
flexible, and divided up into numerous short jointlets (23-28 in Hammatocerus, and 
8-18 in Homalocoris); the third and fourth joints are more slender than the second, 
subequal in length, and show traces of segmentation. The head is not at all prolonged 
behind the prominent eyes, and the ocelli are placed between them. Laporte notes 
that the antennal structure approaches that of the Blattide. — 
These insects are found under the bark of decaying trees, some of them being 
common in the forest-regions of Tropical America. 
HAMMATOCERUS. 
Hammacerus, Laporte, Essai d’une Class. Syst. Hémipt. in Guérin’s Mag. Zool. 1832, p. 79. 
Hammatocerus, Burmeister, Handb. der Ent. ii. p. 235 (1835); Amyot et Serville, Hist. Nat. Ins. 
Hémipt. p. 345; Stal, Hemipt. Afr. iii. p. 102; Enum. Hemipt. ii. p. 100. 
Six species of Hammatocerus have been described, some of which are probably 
nothing more than colour varieties of others, the genus ranging from the Southern 
United States to the Argentine Republic. 
Two species only are known to me from Central America*. These insects have 
* Prof. Uhler (Bull. U.S. Geol. & Geogr. Surv. i. p. 328) states that H. purcis (Drury) occurs in Mexico, 
but the locality requires confirmation. 
