232 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



Body narrow, elongate, gradually increasing in width to the seventh 

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



a Head as wide at the base as it is long 



3mm. : 3 mm. gradually becoming more 

 and more narrow to the anterior extrem- 

 ity, which is widely rounded. The ante- 

 rior extremity is half as wide as the base, 

 being 1 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 

 antennae. The basal articles of the first 

 antennae are not adjacent, but are sep- 

 arated by a distance of 1 mm. The sec- 

 ond pair of antennae 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 1 mm. long; the a 



seventh segment is the shortest and is 1 

 mm. in length. The epimera are distinct!} 7 

 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. 



The abdomen is abruptly narrower 

 than the thorax. The first segment is 

 deeply set in the thorax and is covered 

 at the sides by the seventh thoracic 

 segment. The segments increase very 

 little in width. The sixth or terminal 

 segment is a little longer than wide, 

 5 mm.: 6 mm.; it is triangularly pro- 

 duced to a narrowly rounded apex. 



All the legs are prehensile, with long, narrow curved dactyl i. They 

 increase slightty in length to the seventh pair, which are abruptly very 



FIG. 233. OLENCIKA PR.EGUSTATOR 

 (AFTER SCHICEDTE AND MEINERT). 

 a, HEAD OF FEMALE SHOWING AX- 



TENNA.E AND MOl'TH PARTS, b, HEAD 

 OF MALE SHOWIXG SAME. (EN- 

 LARGED.) 



FIG. 234. OLENCIRA PR.EGUSTATOB 

 (AFTER SCHICEDTE AND MEIXERT). 

 a, ADULT FEMALE. 6, LATERAL VIEW. 



(EXLARGED.) 



