* HEMIPTERA-HETEROPTERA. A417 
Besides its different colour, it is separated from that species by having the base of the 
pronotum more concave and the base of the scutellum more foveate. 
COLLARIA. 
Collaria, Provancher, Nat. Canad. iv. p. 79 (1872). 
Nabidea, Uhler, Proc. Bost. Soc. Nat. Hist. xix. p. 897 (1878); Reuter, Zool. Jahr., Arthr. p. 507 
(1879). 
Trachelomiris, Reuter, huj. op. p. 238. 
I am indebted to Dr. Bergroth for pointing out to me some two years ago that 
Reuter’s genus was preoccupied by that of Provancher, and Dr. Reuter has recently 
tacitly admitted the same. 
1. Collaria oleosa. 
Trachelomiris oleosus, huj. op. p. 288, Tab. XXIV. fig. 2. 
Collaria oleosa, Reut. Ann. Soc. Ent. Fr. 1892, p. 393°. 
To the localities given, add:—Muexico, San Lorenzo near Cordova (MM. Trujilio), 
Orizaba (7. H. Smith & F. D. G.), Fortin in Vera Cruz, Chilpancingo and Tierra 
Colorada in Guerrero, and Teapa in Tabasco (H. H. Smith) ; ‘GuaTeMALA, Duefias 
(Champion); Nicaragua, Chontales (.Janson).— VENEZUELA, Colonia Tovar, San Esteban, 
Caracas (Simon '). 
XENETUS (p. 239). 
Prof. Uhler (Ent. Amer. iii. p. 151) has stated that my genus Xenetus ‘* will no 
doubt prove upon actual comparison of the types to be the same” as Hucerocoris, 
Westw. I can scarcely follow this opinion, as the two genera have not only been fully 
described, but the types of both have been also figured. The structure of the antenne 
alone is sufficient to prevent any confusion. 
Eucerocoris, Westw. Xenetus, Dist. 
“‘ Antenne corpore toto fere triplo longiores.” « Antenne not quite so long as the body.” 
‘ Articulis tribus primis longitudine fere zequali- “ First joint about as long as the head or longer, 
bus.” (Prof. Westwood’s figure shows the second joint three times the length of the 
basal joint to be about as long as the poste- first, third about half the length, or nearly 
rior tibiz and tarsi together.) as long as the second.” 
Xenetus lanuginosus (p. 239). 
To the localities given, add :—Maexico, Teapa in Tabasco (H. H. Smith); GuaTEMata, 
Teleman, Chacoj, Coatepeque (Champion); Panama, Bugaba (Champion). 
Xenetus chryselectrus (p. 240). 
To the locality given, add :—Guvatemaua, San Gerénimo (Champion). 
BIOL. CENTR.-AMER., Rhynch., April 1893. 53 
