THE CANADIAN ENTOMOLOGIST. 241 



face ; face below insertion of antennre well-rounded ; distance between 

 lateral ocelli and median ocellus greater than that between one of the 

 laterals and the eye margin ; maxil'ary pal})! long ; joints 2 and 3 sub- 

 equal in length, and each as Img as or longer than i, joint 4 longer than 3. 



Male. — Resembles female except in antennn?, in which the funicle 

 joints are all of ecjual widdi, each somewhat longer than broad, and all 

 well separated, with rounded bases and sharply truncate tips ; moderately 

 hairy ; hairs not arranged in whorls. 



Huiiterellus Hookeri, n. sp. — Female. — Length, 0.85 mm.; expanse, 

 2.04 mm.; greatest width of fore wing, 0.35 mm. Head and mesonotum 

 very finely shagreened, somewhat shining and furnished with many fine, 

 short hairs. Mesopleura smooth, shining. General colour black. 

 Antennae dark fuscous. Front and middle tarsi and tibiae dirty honey- 

 yellow ; hind tibite brownish in middle, honey-yellow at either end ; front 

 and middle femora light at distal end. Veins of wing dark brown. 



Male. — Resembles female except in antennae, which are lighter in 

 colour. Described from four females and six males, reared May 22 from 

 Rhipicephalus Texaiius collected on Mexican dog at Corpus Christi, 

 April 20, 1908. 



U. S. National Museum, type No. 11,947. 



PRELIMINARY REMARKS ON AMERICAN CORIZINI 



(HEMIPTERA). 



BY C. F. BAKER, PARA, BRAZIL. 



In Uhler's check list there appeared eleven North American species 

 of this group, all under the genus Corizus. But one of these {hyalinus) 

 had also been found in Europe. Two were species of Dallas, one of Say, 

 two of Stal, and the remainder date from the monograph of the genus by 

 Signoret, published in 1859 in the Ann. Ent. Soc, France. The descrip- 

 tions of Signoret are largely drawn from colour characters, and have 

 consequently been the cause of endless confusion and misunderstanding 

 in the determination of the species. The colour forms are simply multi- 

 tudinous "protean," as stated by Distant. In large series from all parts of 

 North, Central and South America specimens may easily be discovered 

 that exactly fit the descriptions of Signoret, but they are mostly mere links 

 in vast intergradins series of forms. In collections where these forms are 



July. 1908 



