4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 09 



to Lophoproctus. This view is furthered by the illustration, which 

 shows but a single row of hairs along the posterior margin of each 

 segment, as in Lophoproctus, instead of two rows, as in Polyxenus. 

 In other respects the disposition of the hairs is very similar to that 

 in Lophoproctus niveus Loomis, except that segment i is not even in- 

 dicated in the drawing and its two clusters of hairs apparently are 

 shown as being on the back of the head. In neither of the above 

 genera is there a row of hairs at the back margin of the head or of 

 the first segment. 



Specimens from Cuba and others collected by the Armour Expedi- 

 tion from Mount Misery, St. Kitts, January 24, 1932, have been re- 

 ferred to P. longisetisj' These specimens are without eyes but in other 

 respects answer the description of the species. An examination of 

 the type is necessary to determine its genus and whether the above 

 specimens have been correctly determined. 



LOPHOPROCTUS COMANS, n. sp. 



Plate I, fig. I 



One female from the Maracas Valley, Trinidad, February 13, 1932. 



Diagnosis. — The large size of the body, its exceedingly shaggy ap- 

 pearance, due to the long hairs of the lateral prominences and those 

 on each side of the dorsum; and the broad, very dense fascicle of 

 uniformly long hairs, are the outstanding characters by which this 

 species may be recognized. 



Description. — Body very shaggy ; gray ; quite large and stout ; about 

 5.5 mm long, including the terminal brush of hairs; 1.2 mm wide; 

 terminal brush a little more than i mm long and over half as broad ; 

 number of segments 11, with 13 pairs of legs. 



Head oval, eyeless, with long, slender antennae ; joint i short ; 

 joint 2 equal to 4, a third longer than 3, but Httle longer than 5, and 

 noticeably shorter than joint 6, which is as long as the 2 subequal 

 outer joints combined. Labrum deeply and narrowly notched at mid- 

 dle. From the outer margin of the head, just above the antennae and 

 reaching across the front, the surface is densely beset with long, 

 slightly curved, erect, clavate, barbed hairs, most closely set above 

 the antennae ; on each side of the middle of the front the hairy area 

 extends forward considerably but at the middle the transverse band 

 of hairs is narrow. Above this band of scattered hairs there is a 

 single crescentic series of similarly shaped hairs on each side of the 

 head, and near the outer end of the series there are three tiny round 



Bull. Mus. Comp. Zool., vol. 75, pp. 357-358, I933- 



