SEVENTEENTH ANNUAL EEPORT. 



443 



tical. Length of body, 6.5 mm. (9 replete); width, 3.5 mm.; length of I leg, 2 

 mm.; length of II leg, 2.5 mm. 



Male similar in size and color to the nonreplete female, but dorsal shield provided 

 with five constrictions above the legs and spiracle 

 areas, anterior angles very prominent, and dentif. 

 erous; two external teeth (of which the superior is 

 broader and half as long as the inferior), the inter- 

 nal single and small. Capitulum of the male 

 slightly narrower and longer than in the female, 

 provided with spiniferous angles on each side and 

 an arched posterior margin. Palpi perceptibly 

 shorter than the rostrum [haustellum] . Posterior 

 margin of the body 7-lobed; all lobes rounded, by 

 no means broad, especially median lobes narrower; 

 ventral surface of the abdomen provided on each 

 side of the anus with two shields, the median of 

 which are larger, elongate, increasing in size pos- 

 teriorly, but with narrower apex, which is obliquely abrupt toward the exterior; 

 external angle rounded, internal angle prominent, posterior margin biincised, setif er- 

 ous, provided with several apical tubercles; lateral shields smaller, 

 elongate-triangular. Legs short, rather thick, setif erous; tarsi I 

 unicalcarate, others armed with two subequal sj^urs; coxae I sub- 

 triangular, decidedly narrower at the internal margin, posterior 

 margin provided with two teeth (the inner smaller), and between 

 these a rather deep incision, the surface and exterior angles setif- 

 erous; coxse II subquadrangular, postero-internal angle more or 

 less prominent; coxae III and IV subquadrangular, angles rounded. 

 Genital pore rather wide, situated between the second pair of coxae. 

 Otherwise like the female. Length of body, 2.5 mm. 

 It is very closely related to Ehipicephalo {Hsemaphysali) microplx 

 (Canestrini) ," but differs from it in having shorter legs, lobed posterior margin of 

 the body, and bidentate coxae; moreover, it inhabits other geographical regions.^ 



Fig. 162. — Dorsal view, capitulum of 

 male R. calcaratus. After Birula, 

 1895, fig. 16. 



Fig. 163.— Anus of 

 male E. calcara- 

 tus. After Biru- 

 la, 1895, fig. 17. 



^ [p. 361] Brunneo-rufus vel fulvo-testaceus. Corpus elongato-ovale. Capitulum 

 hexagonale, latissimum. Oculi distincti, elliptici. Palpi brevissimi, coniformes. 

 Rostrum dentibus 8-seriatis armatum. Pedes calcarati. Coxae I bidentatae. Verru- 

 cae dorsales porosae [p. 362] parvae. Rima genitalis inter coxas 1(9), vel II ( ^ ), 

 posita. Areolae stigmaticae subrotundae, parvae. Mas clypeis pygealibus quattuor 

 auctus. 



Feminx corpus, si repletum, elongato-ovale, parte postica pone spiracula angustiore, 

 partis anticae lateribus ad pedes nec non ad spiracula quater coarctatis, verrucis pori- 

 feris dorsalibus duabus rotundis minimis. Scutum dorsale oculiferum, disperse setu- 

 losum, subpentagonum, latitudine fere duplo longius, angulis anticis parum promi- 

 nentibus, rotundatis, lateribus partis scutuli anticae subparallelis, parte postica pone 

 oculos triangulari, apice rotundata, quam pars antica hand longiore. Oculi elliptici, 

 parum convexi, a margine scuti vix distantes, extrorsum spectantes. Capitulum breve 

 ac latum (longitudine fere duplo latius), parte frontali hexagonali, angulis lateralibus 

 valde prominentibus, marginibus postico-lateralibus sensim emarginatis, marginibus 

 antico subrecto, postico arcuato; capituli parte postica colliformiter coarctata, longi- 

 tudini partis frontalis aequali; subtus margine capituli postico fere semicirculari, 

 angulis posticis nuUis, in sterni emarginatura antica sito. Arese frontales crasse poro- 

 sae, ovatae, sat magnae, in capituli superficie postica oblique dispositae. Palpi rostrumque 

 longitudinem partis frontalis capituli fere attingentes. Rostrum palpis paulo longius, 

 latum ac breve, apice incisum, parte granulata apicali nulla, dentibus rhomboidalibus 



