3i6 Occasional ra/^crs Hcvnicc P. BisJiop Mitscmu 



Lihue. Katiai, 111, 3, T017. (O. II. Swezey). 2$, 29, [11. S. 

 P. A. and llcl)ar(l Coll.]. 



^'ariation in size as well as in the streni^lh of the armament 

 is decided. The extremes of the three males from Kanai measure 

 as follows; length of body 11. 7-13. 5, length of pronotum 1.55- 

 1.9, width of pronotum 1.55- 1.8, length of tegmen 3.2-3.8, ex- 

 ix»sed length of wing i. 84-1. 97, length of forceps 4.2-6.1 mm. 



Labia pilicornis ( Alotschulsky ) (Plate xxvi, 3 and 4.) 



1863. ForfisccUa pilicornis Motschulsky, Bull. Soc. Imp. Nat., 

 Moscou, part 2, p. 2 [ 9 ; Nura Ellia Mountains, Ceylon.] 



This species is apparently nearest L. friihstorfcri Burr, de- 

 scribed from Lombok. It dififers in having the meso-distal por- 

 tion of the abdomen brown, often as light as the forceps, the 

 almost unicolorous limbs and the moderately prominent though 

 very small male pygidium. From the description we are unable to 

 say whether the female forceps and pygidium show other differ- 

 ences. 



The species clearly shows Indo-Malayan, ^Nlelanesian or 

 Oceanic, rather than American affinities. 



This material was iirst believed to represent an undescribed 

 species and the following treatment was prepared. We have not 

 deleted this, as the species has never been thoroughly diagnosed. 



There is little cfuestion that pilicornis has been introduced 

 from the Orient. 



Kaimuki, Oahu, Hawaii. February 19, 1921. (P. H. Timber- 

 lake.) 



Description of male: Size very small, form slender. Head microscop- 

 ically very finely but thickly pilose, shining; weakly cordiform, owing to a 

 very weaklj' indicated obtuse-angulate emargination of the caudal margin ; 

 the medio-longitudinal suture weakly indicated as a bare line in occipital 

 portion. Eyes small, about three-fifths as long as cheeks. Antennae with 

 13 joints; the first large, as long as the third plus twice the length of the 

 second, expanding suddenly near base, thence with sides parallel ; second 

 minute ; third elongate, cylindrical, expanding very feebly and evenly distad ; 

 fourtli elongate ovate, three-quarters as long as the third ; the fifth elongate, 

 weakly pyriform, nearly as long as the third; succeeding joints similar, but 

 increasing slightly in length distad, the longest nearly four times as long 

 as broad. 



[14] 



