TI!i: MVKIAI'ODA OF NORTH AMKIUCA. 105 



Msilr: C'oxn' of tliinl uimI fuiirfh p;iirs of lt'«,'s proiliucil into slinrt, 

 IWiiiit, roiiiitlt'd iohes, that of the tliiril iiion* slciHlcr; fciiiu^ of third :iii«l 

 fourth with an oval swrllinj;, that of tliird hir;;(»st : viMitial part of fhf 

 posterior half of seventh srfjnn'iit prodiiced into a short f liaujunlar 

 phite. Srfjnirnts ."jO, Li'nj;th, .V»"""; wi<lth, "i""". 



This specirs is drsnilM'd from a broken inah' speriinrn. The eo| ii- 

 hitioii foot was not taken out, Init wliat \ eoiihl see n'seuddes that of 

 nixdntiis and hrilprini. 1 have named this spe<ies attei- its eolleetor, 

 Mr. A. Diiges. 



8. Spirostreptus otomitus (SiiiiHsim'N. 



18.'>!>. — JiihiH olumiliiH Saussun'. IJiiii. Kiit.. 'XM) {l inilora, lini t'ni:. Sun Aiidtrit, 



Tuftht, Mvxivn ) . 

 IHKI. — Spirostriptua otomituH Vxi\w\\\o\um*- ih I'mirr. Ann. Soc. Knt. Hcljj., »>!». • 



Acp. 19811, Triixillo, Flnmlnras; ('. U. Towuseml. 9. 



Number of sej^ments, «>.{; oeelli Hi-5; antenna- reachin};' thiid se<; 

 ment; U'n^th, 5.")"""; width. 3.2"'"'. 



9. Spirostreptus surlnamensis iSiamlt. 



IHIl. — SpiroHhi'ittnii Hiiihtnineniix Hraiidt. Hfcutil. 1U^< (Surinam). 

 1817. — Iitlits miriuiiiiniixix ^i^•l^\■,us. ApttTeH. IV, 1S5. 



Ace. II 120, Now (iranada, West Iiulii-s: T. S. FisJi '"niiiiii. Male ami female. 



Dark brown, anterior part of se<^ments yeUowisli; antenn.e and h'jis 

 reddish brown. Robust, anterior sejiiuents somewhat attenuated. 

 Vertex, especially alonj;' niarjiin of lirst dorsal plate, rou^^li, h)nj;i- 

 tudinal and transverse sulci distinct; clypeus very roiiiih, emar<;ina- 

 tion shallow. Anteniue reaching? third sej;nient in both sexes. Ocelli 

 (>.j-70, iu 7 series, arranged in an elongate oval patcdi. 8egments 

 scarcely segmented, appearing smooth and shining, but densely and 

 very lightly punctate; anterior part with a few concentric .stria*; pos- 

 terior striate beneath, stri;e disappearing before pore and forming a 

 row of dot-like marks. Lateral i)art of tirst segment tetragonal, slightly 

 produced anteriorly in the male, about 7 distinct sulci. Anal segment 

 obtusely angled, a transverse sulcus; anal valvc.'s strongly margined, 

 convex; anal scah^ almost transverse. Kepugnatorial jxtre small, 

 idaced about on anterior third of posterior part. Legs long, extending 

 beyond sides of body. Segments, male, 62; female, G-i. 



Male : Legs stouter than those of female ; first and second tarsal Joi nts 

 with pads; these disappear about the thirtieth segment; ventral plate 

 of copulation foot very small, convex, sulcate, its base concave; ante- 

 rior copulation foot curled around basal part of posterior, Avhich runs 

 along its anterior surface, end expanded and louiuled, with a black, 

 short, pointed, upward and backward projecting lobe at its upi)er 

 exterior angle, its anterior surface corrugated, that i>art wluj-h curls 

 around ])osterior foot corrugated and with a few short bristles; posterior 

 foot appearing at upper tliird of anterior, decurved along its outer edge. 



