ISOl'ODS OF NORTH AMERICA. 



227 



ANILOCRA LATICAUDA Milne Edwards. 



Anilocra laticaudn Milxk Kdwahds, Hist. Nat. Crust., ill, 1840, p. 259. 



An'docra mexlcana Saussuke, Rev. Mag. Zool., 1857, p. 505. 



Anilocra leachii (Kiwykk) Schiucdte, Natur. Tidsskrift (3), IV, 186H, p. 205, pi. 

 XI, figs. 2a-2g. 



Anilocra laticauda Schkedte and Meinert, Naturhistorisk Tidsskrift (3), XIII, 

 1881-83, pp. 126-131, pi. ix, figs. 1-3. — Eich.vkdsox, American Naturalist, 

 XXXIV, 1900, p. 221; Proe. U. S. Nat. Mus., XXIII, 1901, p. 528.— 

 Moore, Report U. S. Commissioner of Fish and Fisheries, XX, Pt. 2, 1902, 

 p. 172, pi. X. figs. 3-4. 



Localities.- — From MaiTland to the Straits of Magollan; Mar\iand; 

 Key West; St. Anna, Mexico; Coziimel, Yucatan; Ha])ana, Cuba; St. 

 Thomas; St. Croix; St. Bartolomew; Rio de Janeiro, Brazil; Sand}' 

 Point, in Straits of Mat>eUan; Porlamar, Margarita Island, Venezuela; 

 ArroA'o and Vieques, Porto Rico. 



Parasite of IbvDniJon ]>Jurti!eri; also of Uj)€7}ens innrtinicus. 



Fio. 230. — Anilocr.'V laticauda (After Schicedte and Meinert). a, Young of the second stage. 

 6, Adult FEMALE, c, Young of the first stage. (All enlarged.) 



Body oblono'-oyate, nearh' two and a half times longer than wide, 

 14 mm. : 34 mm. Bod}" widest at the tif th thoracic segment. 



Head wider at the base thati long, 3 mm. : 5 mm., somewhat triangular 

 in shape, becoming gradually narrower toward the anterior extrem- 

 ity, which is produced to a narrow, pointed apex, bending downward 

 oyer the antenna", separating the basal articles, and extending on the 

 yentral side to the mouth parts. From a dorsal yiew the anterior 

 margin is 2 mm. wide and is truncate. The eyes are large, oyal, twice 

 as long as wide, composite, and situated in the post-lateral angles of 

 the head. The head is not at all set in the tirst thoracic segment. 

 The first pair of antenna* are composed of eight articles, and extend 

 to the end of the tifth article of the second pair of antennae. The 

 basal articles are not contiguous, but are separated by a distance of 

 I mm., the width of the frontal process at this point. The second 



