127 



met. Halevedhængene megel smaa, enleddede. 

 eraahvid. Længden 4.20""". 



Findested. Stat. 248. 



Bemærkninger. Fra den typiske Art er denne let 

 kjendelig ved de overalt piggede Entegumenter, de mindre 

 stærkt forlængede 2det Par Fulere og den rudimentære Be- 

 skaffenhed af Halevedhængene; endelig derved, a1 ikke blot 

 Iste. men ogsaa 3die Forkropssegment til hver Side gaar 

 ud i spidse Torner. 



Beskrivelse af Hunnen. Legemet er (se Pl. XI, 

 Fig. 26) af den for Slægten characteristiske spinkle og lang- 

 strakte Form. med den største Brede neppe overskridende 

 1 ,-, af Længden og Midtpartiet særdeles smalt og ligesom 

 udtrukket. 



Integumenterne er temmelig laste og overalt ru af 

 meget smaa tiltrykte Pigger. 



Hovedet er forholdsvis lidet. aæsten cirkelformigt og 

 ved Basis delvis omfattet af Iste Forkropssegment. med 

 Panderanden jevnt buet. 



De 3 første Forkropssegmenter er omtrent indbyrdes 

 af ens Størrelse og over dobbelt saa brede sum lange. De 

 forreste Sidehjørner af Iste og 3die er utrukne til lange 

 skraat fortilrettede dolkformige Fortsatser, hvoraf navnlig 

 de paa Iste Segment er af betydelig Længde. 



De 2 følgende Forkropssegmenter viser en meget eien- 

 dommelig Form, idet de tilsammen danner et stærkt for- 

 henget, paa Midten smalt cylindriskt, (dier næsten timeglas- 

 formigt Kropsafsnit, indtagende omtrent Halvparten af Total- 

 længden. Begge Segmenter er meget fast, og somdetsynes 

 ubevægeligt forbundne med hinanden, men dog tydeligt be- 

 grændsede ved en lige Tværsutur, som bemærkes loran 

 Midten af nævnte Afsnit. 



De 2 sidste Forkropssegmenter er meget smaa, med 

 jevnt afrundede Sidedele og den bagre Hand noget conca- 

 veret. 



Bagkropssegmentet er forholdsvis lidet, kun indtagende 

 V; af Totallængden. Af Form er det ovalt, noget indknebet 

 ved Havis, og med Enden stumpt tilspidset. 



Af Øine tindes intetsomhelst Spor. 



Iste Par Følere (Fig. 27) er omtrent saa lange som 

 Hovedet og de 2 første Forkropssegmenter tilsammen. Skaftets 

 Iste Led er meget kort. skjælformigt, met! en noget takket 

 Rand. 2det Led er stærkt torlænget og smalt, i den indre 

 Kant forsynet med stærke Horster. 3die Led er forholdsvis 

 Lidet og synes mere at slutte sig til Svøben end Skaftet; 

 det følges af 3 korte Led. der forestiller den egentlige 



Svohe. 



2det Par Følere (se Fig. 26) er betydelig stærkere 

 udviklede, skjøndt neppe opnaaende Legemets Længde. Skat- 

 tets 5 Led er alle smale og simpelt cylindriske. Svøben er 



powerful in structure than in the typical species, with 4th 

 joint but veiv Little swollen. Caudal appendages exceed- 

 inglj minute, uni-articulate. Colour greyish-white. Length 

 4.20 



Locality. 



Stat. 248. 



Remarks. — From the typical species, fchis form is 

 easily distinguished by the rough surface of the integuments, 

 the less produced 2ud pair of antennæ, aud the rudiment- 

 an character of the caudal appendages; finally, not only 

 by the I st. Imt also tin- 3rd, segment projecting on either 

 side as an acute spine. 



Deseription of the Female. — The body (1*1. XL. 

 fig. 26 has the slender and elongate form peculiar to the 

 grims, with the greatesl breadth scarcely exceeding one- 

 tifth of the length, the medial part remarkably narrow and. 

 as it were, drawn out. 



The integuments are rather compact, and everywhere 

 rough. from minute appressed spines, oi- spicules. 



The head is comparatively small, almost circular in 

 shape, and at the hase partly encompassed hy the Ist live 

 segment, with the frontal margin uniformly arched. 



The 3 first segments are well-nigh uniform in.size, 

 and more than twice as broad as long. The anterior lat- 

 eral corners of the Ist and 3rd jut out as long. oblique, 

 anteriorlj directed, dagger-shaped projections, those on the 

 Ist segment in particular being of very considerable size. 



The 2 succeeding segments exhibit a very peculiar 

 form. constituting together an exceedingly elongate and. in 

 the middle, narrow-cylindric, or almost hourglass-shaped 

 section of the body, that measures about one-half of the 

 total length. The two segments are very tirinly. and. it 

 would seem, immovably connected with each other, though 

 distinctlj defined by a straight, transverse suture, obcurring 

 somewhat anterior to the middle of the aforesaid section. 



The 2 last segments belonging to the anterior division 

 are \it\ small, with uniformly rounded lateral parts and 

 tin- posterior margin somewhat concave. 



The abdominal segment is comparatively small, mea- 

 suring not more than one-seventh of the total length. In 

 fonn. i' i-, oval, somewhal constricted at the base, and with 

 fche extremitj obtuselj pointed. 



Of eyes no trace whatever could be detected. 



The Ist pair of antennæ (fig. 27) are about as long 

 as the head and the 2 firsl segments tåken together. The 

 Ist joint of the peduncle is extremely short, squamiform, 

 with a somewhat jagged margin. The 2nd joint is greatlj 

 produced, and slender, as also. along the inner margin. 

 furnished with 4 strong bristles. The 3rd joint is com- 

 paratively small, and would appear rather as belonging to 

 the flagellum than to the peduncle; it is succeeded bj '■> 

 short articulations, representing the true flagellum. 



The 2nd pair of antennæ (fig. 26) is much stronger 

 in development, though scarcely attaining the length of the 

 body. The 5 joints of the peduncle are all slender and 



