438 



REPORT OF STATE GEOLOGIST. 



femora. Head, tegmina and body of most specimens a uniform dark 

 piceous; disk of pronotum piccous or fuscous sprinkled with piceous. 

 Antennae, legs and ovipositor fuscous. Maxillary palpi yellowish ex- 

 cept the apical joint which is wholly piceous. Tegmina of female 

 covering a little more than half the abdomen; those of the male 

 hardly reaching its tip. Ovipositor almost a third shorter than hind 

 femora, distinctly though feebly arcuate, the api- 

 cal blades but little enlarged at the base, very 

 finely serrulate with dull, rasp-like teeth. 



Measurements: Length of body, male, 5.8 mm., 

 female, 6.3 mm.; tegmina, male, 4 mm., of female, 

 3 mm.; of hind femora, male 4.5 mm., of female, 

 5 mm.; of ovipositor, 3.5 mm. 



This handsome little pitch bro^\ai Nemobid has 

 been found only among the tamarack swamps and 

 cranberry bogs of the northern part of the State, 

 where it finds a congenial home in the midst of 

 the dense, damp sphagnum mosses. Sometimes 

 they are so plentiful that a half dozen or more axe 

 seen in an area a foot square. Like the other 

 members of the genus they are very active, when 

 disturbed leaping vigorously, a few inches at a 

 time, and finally seeking safety by burrowing in 

 the masses of mosses. It has been taken in Marshall, Fulton and 

 Starke counties and probably occurs wherever peat bogs and sphag- 

 num mosses are present. 



131. Nemobius confusus sp. nov. 



Body broad and rather stout; the head but little prominent; the 

 face and antennge fuscous in color; the vertex, disk of pronotum and 

 two front pairs of femora with scattered, black, stiff hairs. Last two 

 joints of maxillary palpi of the female white, very noticeable in liv- 

 ing specimens; the same segments in the males whitish to fuscous, 

 the apical half of terminal joint darker. Pronotum broader than 

 long, with a median impressed line on its front half, more prominent 

 in the female; the disk usually a dark smoky brown in color except 

 along the front half of each lateral carina, where there are some 

 light brown spots; the sides darker. Tegmina of female covering 

 half, those of male, three-fourths of abdomen, piceous throughout 

 except the carina separating the dorsal from the lateral field, which 

 is fuscous or smoky brown. Dorsal surface of abdomen black, with 

 often a few small dots of yellowish brown on the last three segments. 



Fig. 108. Xemobius pa- 

 lustria Bl. Female. 

 Three times natural 

 size. (Original.) 



