232 BULLETIN 54, UNITED STATES NATIONAL MUSEUM, 



Body narrow, elong-ate, gradually increasing in width to the seventh 

 thoracic segment, 6^ mm. wide, 26 mm. long. 



^ Head as wide at the base as it is long — 



3 mm. : 3 mm.— graduall}- becoming more 

 and more narrow to the anterior extrem- 

 it}', which is widel}' rounded. The ante- 

 rior extremity is half as wide as the base, 

 ))eing li mm. in width. The eyes are 

 large, oblong, twice as long as wide, 

 composite, and situated in the posterior 

 half of the head at the post-lateral 

 angles. The first pair of antennae are 

 composed of eight articles, and extend to 

 the seventh article of the second pair of 

 antenna?. The basal articles of the first 

 antenna' are not adjacent, but are sep- 

 arated by a distance of 1 mm. The sec- 

 ond pair of antenna? are composed of ten 

 articles and extend to the posterior margin 

 of the head. The maxillipeds have a palp 

 of two articles. The palp of the mandi- 

 bles is composed of three articles. 



The first and fourth segments of the 

 thorax are longest and are subequal, 

 each being 2^ mm. in length; the second 

 and third are subequal and each is 2 mm. long; the fifth and sixth are 

 subequal and each is li mm, long; the « 



seventh segment is the shortest and is 1 

 nun. in length. The epimera are distinctl}^ 

 separated on all the segments, with the ex- 

 ception of the first; they are narrow, elon- 

 gate plates, which do not reach the pos- 

 terior margins of the segments, except 

 the seventh pair, 



is aliruptl}' narrower 



The first segment is 



thorax and is covered 



the seventh thoracic 



segments increase very 



The sixth or terminal 



Fig. 233. — Olencira pr.euustator 

 (After Schicedte and Meinert). 

 a, Head of female showing an- 



TENNA.E AND MOUTH PARTS, h, HEAD 

 OF MALE SHOWING SAME. (EN- 

 LARGED.) 



The abdomen 

 than tlie thorax, 

 deeply set in tiie 

 at the sides ])V 

 segment. The 

 little in width. 



Fig. 234. — Olencira pr.egustator 

 (After Schicedte and Meinert). 

 «, Adult female. 6, Lateral view. 

 (Enlarged.) 



segment is a little longer than wide, 

 5 nmh: 6 mm,; it is triangularly pro- 

 duced to a narrowlv rounded apex. 



All the legs arc prehensile, with long, narrow curved dactyli. They 

 incr(uise slightly in length to the seventh pair, which are abruptly vcr}' 



