382 P. CAMERON. 



Iphiaulax Trailii sp. nov. 



Black; the sides and apical slopes of the abdominal segments rufous; wings 

 dark fuscous, the stigma, except at the apex, pale ochraceous ; as is also the base 

 of radius; the apical abscissa of radius shortly but distinctly longer than the 

 basal two united. Area on 2nd abdominal segment elongated, extending almost 

 to the apex and becoming gradually narrowed to a sharp point ; it is bordered 

 by a shallow furrow bearing nine or ten stout, longish oblique striae. % . Length 

 11 mm. 



Except at the base, apex and a narrow keel down the centre, the raised cen- 

 tral part of the 1st abdominal segment is irregularly punctured, the central 

 smooth keel being bordered by 3 elongated irregular fovese ; the lateral furrows 

 wide, deep and bearing 9 stout, more or less oblique keels; the apex and the 

 basal parts between the fovese are more deeply depressed. Area on 2nd segment 

 bordered by stout, more or less oblique keels; the oblique lateral area wide and 

 with 3 or 4 keels at the base. Suturiform articulation wide, irregularly closely 

 striated ; the furrows on the 3rd, 4th and 5th segments are distinct, moderately 

 deep and closely striated ; the striation on the 5th being weaker than on the 

 others. Head and thorax thickly covered with grey pubescence, more sparsely 

 on the mesonotum and more thickly on the median segment than on the rest; 

 smooth, shining. Frontal furrow not reaching to the apex, wide, deep. Legs 

 thickly covered with grey pubescence; that on the coxse being longer and denser 

 than on the rest; the calcaria black. The 3rd abdominal segment is closely, 

 somewhat strongly longitudinally striated-reticulated, the 4th in the centre stri- 

 ated-punctured. 



Hab. — Amazonia, Mamiva (Prof. I. W. H. Trail). 



Iphiaiilax Schrottkyii sp. nov. 

 Similar in size and coloration to I. Trailii, described above, but easily separated 

 by there being a distinct, smooth triangular plate on the base of the 3rd abdomi- 

 nal segment, and by the apex of the 1st bearing a stout keel, bordered by a de- 

 pression. Lateral furrows on 1st abdominal segment wide, the keels stout, 

 irregular, widely separated. Plate on 2nd segment smooth, long, becoming 

 gradually narrowed to a point; the bordering keels are stout, longish, irregular, 

 forming almost reticulations; the oblique keel wide, smooth, except for 2 or 3 

 short strise at the base; the part outside its apex is finely, closely, longitudinally 

 striated. Suturiform articulation closely striated, as is also, but somewhat more 

 strongly, the oblique lateral furrow ; the furrow on the 3rd is distinct, deep, 

 closely striated. Mandibles dark rufous in the middle. Palpi black. Length 

 11 mm. %. 



Hab. — Amazonia ; Cararamer (Prof. I. W. H. Trail). 



Iphiaulax javaryensis sp. nov. 



Black ; the basal 5 segments of the abdomen bright red (like the color of red 

 sealing-wax); the entire body, except the face, which is granular, smooth, im- 

 punctate, shining; the wings dark fuscous, the stigma, except at the apex, pale 

 ochraceous; the 3rd abscissa of the radius longer than the basal two united ; 

 tegulse black. 9 • Length 10-11 ; terebra 5 mm. 



Head and thorax covered with grey pubescence ; longest and thickest on face, 



