1 8 University of Michigan 



Adenoschendyla gaigei, sp. nov. 

 Plate III, Figs. 12, 13, and 14; Plate IV, Fig. 17 



Pairs of legs, 53, 55. 



Head plate longer than wide in ratio 12:11. Anterior margin 

 straight or nearly so, emarginate at middle between antennae. 

 Anterior corners oblique. Caudal margin wide, straight. Widest 

 in front of middle, sides slightly converging caudad (Plate III, 

 Fig. 12). 



Prebasal plate slightly exposed at middle only. 



Prelabial zone more than twice as wide as long. Reticulation 

 distinct, fine, closest in the anterior median region as usual. 

 A postantennal seta each side of this more finely reticulated area 

 and just caudad of this a transverse series of t>^ically six setae 

 (3~^3 or 3+4) the series not fully reaching the outer end on either 

 side. Two setae adjacent to median region of labrum. 



Labrum with median arc consisting typically of ten or eleven 

 to fourteen teeth which increase in size from the middle to each 

 end of the series, the median teeth distally rounded, the more 

 lateral ones becoming more acute. Teeth of median arc on each 

 side passing almost insensibly into the lateral series, the teeth of 

 which are from seven to ten in number and become more slender 

 and prolonged distally in going toward ectal end. The distance 

 between the sides of the lateral pieces to the total width of labrum, 

 measured straight across, as 9:40 (Plate III, Fig. 14). 



Coxosternum of first maxillae with 2 + 2 setae in a transverse 

 series, the more mesal seta of each pair long, the ectal greatly 

 reduced. For coxosternum of second maxillae see Plate IV, 

 Fig. 17. Setae ^-{-:^ or 3+4 in the usual semicircle back of anterior 

 border of coxosternum of second maxillae with caudad of this on 

 each side along median line and in front of caudal border out to 

 the metameric pore a group of setae in a double series, the anterior 

 series continuing forward a little in front of the pore. Metameric 

 pore separated by a distance clearly four times or a little more the 



