Dr. M. Burr — Xoles on the Forficularia. 427 



1 and 2 yellow, rest greyish l)ro\vii, fourth ovate, rest passinj^ 

 to eyliiulrieul ; head smooth and tumid, sutures not very 

 distiuet ; pronotum broader than the head, depressed, trans- 

 verse, slightly widened posteriorly; nieso- and metanota 

 smooth ; sternum yellow, the plates broad ; legs yellowish, 

 tarsi long, first three segments about equal ; abdomen punc- 

 tulate, sides ol; segments 5-9 in (J strongly carinatc and 

 acute, striolate and rugnlose, in ? simple ; last tergite ^ 

 ample, transverse, smooth, with a strong transverse depres- 

 sion near posterior margin, which is truncate; the depression 

 ending at each side in a blunt inci[)ient compressed iut)ercle ; 

 with distinct impressed median line in both sexes ; in ? 

 simple, narrow ; last sternite S broadly, in ? more narrowly 

 rounded ; pygidium (^ a small blunt compressed tubercle^ 

 in ? similar but smaller, more hidden by the forceps ; 

 forceps with branches in ^ remote, trigonal and stout at 

 base, nnarmed, and strongly arcuate, in the ? contiguous, 

 simple ; apical segment of parameres lanceolate. 



Ecuador: Antisanilla to Pinambura, 11,000 ft., 1 (^ 

 (tvpej, 1 $ ; La Dormida, 11,800 ft., 1 (^ ; Pichincha, 

 12,000 ft., 2 S 6; Valley of Collanes, 12,500 ft., 1 ? . 



1 am very happy to dedicate this species to that intrepid 

 mountaineer the late Mr. Edward ^Vhym|)er, who brought 

 home from the Andes several interesting Dermaptera which 

 are now in my collection. 



/. ivhytnperi rather resembles the Mexican /. azteca ; it is 

 distinguished by the very characteristic armature of the sides 

 of the abdomen in the male. 



One specimen — the male from La Dormida — presents a 

 dimorj)hic form of the forceps ; these are depressed and 

 broad and straight, attenuate and arcuate only at the apex : 

 the armature of the sides of the abdomen is also rather weak. 



Nesoy aster mounseyi, sp. n. 



Fusco-castanea, nitida; pygidium 6 parallelum, apice truncatum ; 

 forcipis bracchia S reniota, eloiigata, fere recta, basi iutus crenu- 

 lata, medio deute debili armata. 



6. 



Long, corporis 8-5 mm. 



„ forcipis 4*5 „ 



Smooth, shining, dark chestnut. Antennse with 12-13 

 brown ovate segments, the fourth about half as long as the 

 third. Head smooth, tumid, sutures obsolete. Pronotum 

 yellowish brown, square. Elytra yellowish brown. Legs 



