THE IMM \ i t RE STATE "I I III. ODONA l \. ;,| 



Kiinigsberg, East Prussia, raised, June 6, 1858, b} II. Hagen, Length, -I 

 nun. -. breadth, 9 mm. 



1 m id \ oblong, enlarged and truncate behind, about naked; head short, 

 narrower than abdomen, half as long as broad, slightly rounded in front, 

 straight behind; sides projecting; conical eyes, slightly prominent; behind 

 the eyes an undulating transverse crest, making on each side of vertex a 

 light curve, a little elevated, with a comb of fine bristles ; forehead about fiat, 

 vertex small, rounded, ocelli not indicated; front margin slightly rounded, 

 w iih a fringe of long cilia ; occiput in middle with two small conical tubercles, 

 and on each side near the margin with a bunch of half a dozen long, thick 

 hairs; antennae long, exceeding the lower margin of palpus; basal joints a 

 little thicker. 1st longer than broad, 2d longer than 1st ; 3d not quite as long 

 as the two basals together; 1th hall' the length of 3d; 5th to 7th equal, each 

 a little shorter than .'id; 7th subulil'orm, sharp. Mask extending between 

 front legs spoon-shaped, as long as broad; basal part lour times broader 

 in front than at base; front border triangularly produced, obtuse-angular ; 

 palpus large, triangular, edge straight, with about nine interlocking teeth ; 

 movable hook short, straight, sharp. Prothorax short, narrower than head, 

 slightly rounded behind; middle third of the hind border with a strongly 

 inflated rim. ending abruptly on both ends: Miles a small elliptical lobe, bent 

 upwards; stigmata free; wing cases reaching half of 6th segment : abdomen 

 once longer than broad, oblong, roof-shaped, segments 8 and 9 sloping, the 

 last truncate; segments of equal length; the 10th very short, entirely in- 

 serted in the rounded apical notch of 9th; lateral spines on 8th and 9th, flat, 

 short, sharp; a little longer, the tip bent inwardly on 9th : dorsal hooks on 

 3d to 9th, spine-like, the last three strong, long, bent at tip ; anal appendages 

 short, as long as the two last segments, thick at base, pyramidal, not sharp 

 at tip; dorsal median flat above, as long as inferiors; laterals a little shorter, 

 strong, tip abruptly sharpened; longitudinal ventral sutures straight, ending 

 inside of apical tip of segment 9; space between them broader than lateral 

 spaces ; basal angle of segments 3 to 5 separated triangularly by an ele- 

 vated ridge; ventral apical bonier of 9th segment with a long fringe of 

 hairs. Legs widely separated, fore legs a little less, long, strong; femur a 

 little incurved, of hind legs reaching middle of 7th segment; tibia straight, 

 of the four hind legs fringed with long hairs ; tarsus long, 1st joint of hind 

 legs little shorter than 2d; claws strong, a little incurved, sharp; genitals 

 marked ; ventral bag on 6th segment. 



