ARTHROPOD FAUNA OP THE WEST IITDIES. 507 



*IuLirs Beatjvoisti, Gervais. 



lulus iiidus, Palisot de Beauvois, Ins. dCAfrique et d^Amerique, p. 154, 

 pi. 6. fig. 2. 



Tulus Beauvoisii, Gervais, Ann. Sci. Nat. (2) vii. p. 4/ ; id. Ins. Apt. 

 iv. p. 191. 



Colour hr the most part blackish, chestnut; head, aatennse, 

 and legs ferruginous. 



Head smooth above, finely rugose below, with three or four 

 obsolete punctulations above the labral excision. Antennce of 

 moderate length, the segments contracted at the base, the 

 second the longest. The lateral portions of the collutn obliquely 

 truncate, marked with two oblique sulci, the second of which is 

 interrupted iuferiorly ; the anterior angle more prominent than 

 the posterior, which is obtuse. 



The upper surface of the body smooth, only very finely ruga- 

 lose ; the exterior part of the segmeuts transversely striate ; the 

 posterior part marked below vrith feeble longitudinal striae. Anal 

 tergite not spined, transversely impressed ; sternite triangular. 



Number of segments 60. 



Length 70 mm., width 5 mm. 



Locality. Martinique. 



It is very difficult to know what to do with this species. 

 Grervais proposed the na,me Seauvoisii as a substitute for Indus of 

 Beauvois ; but it is almost certain to my mind that the specimen 

 he described as Beauvoisii from Martinique is not co-specific with 

 Beauvois's specimen oiindushom. San Domingo. Consequently 

 unless it has been renamed since 1847, it is nameless. Moreover, 

 G-ervais asserts that it is referable to Spiroholus. But in spite of 

 the fact that he appears in other cases to have been well acquainted 

 "with the differences between this genus and S_pirostreptus, I 

 venture to think he fell into error in this instance. His descrip- 

 tion, especially where he mentions the collum and labral pores, 

 seems to apply to a Spirostreptus very nearly related to the form 

 I have named antillanus. 



In a list of the described lulidce of N. America — an area which 

 is provisionally expanded to include Central America and the 

 "W. Indies — recently compiled by Mr. Bollman*, the following 

 species are said to be West-Indian : — Spirostreptus confragosus, 

 Jlavicornis, Karsch, and surinamcnsis, Brandt ; Spirololus acutus, 

 crassicornis, Humb. & Sauss., and jiavocinctus, fmidipudens, 



* Ann. New York Ac. Sci. iv. pp. 44-45 (1887). 



38* 



