1915.] NATURAL SCIENCES OF PHILADELPHIA. 469 



This insect is very common and quite characteristic of the upland 

 liogs, the gorges and deep, cold Canadian woods in May and June. 

 From the tent-trap observations made in 1914 by Miss Ruby B. 

 Hughes, at Ithaca, N. Y., it is quite certain that the larva lives in 

 wet earth near water. 



CINCTOTIPULA subgen. n. 



Similar to Tipula, s.s., the apical cells of the wings with scanty 

 short hairs. The coloration of the type-species is dark brown, the 

 thoracic dorsum dark colored with pale stripes. 



Type. — Tipula {Cinctotipula) cdgonquin sp. n. 



Tipula algonquin sp. n. 



Coloration brown and yellow; antennse elongated in the male sex, 

 the two basal segments dull yellow, the flagellum unicolorous, brown; 

 thorax dark brown with three pale stripes; abdominal tergites light 

 yellow, cross-banded with brown; wings hyaline. 



Male. — Length, 11.5-12 mm.; wing, 11-11.3 mm.; antennae 

 about 5.5-6 mm. Fore leg, femora, 7.3 mm.; tibiae, 8.7 mm.; hind 

 leg, femora, 8 mm.; tibiae, 8.6 mm. 



Frontal prolongation of the head short, stout, brownish yellow, 

 the nasus prominent; palpi short, the two basal segments paler 

 brown than the two apical segments. Antennae rather elongated in 

 the male sex, the two basal segments dull yellow, the flagellar seg- 

 ments uniform dark brown with a dense white pubescence ; segments 

 of the flagellum only a little enlarged at the base. Head dull yellow, 

 on the sides of the vertex behind the eyes with a triangular brown 

 patch. 



Pronotal scutum brownish yellow, a little darker medially. 

 Mesonotal praescutum with the three usual thoracic stripes present, 

 but pale brownish yellow in color, the interspaces being very dark 

 brown, so that a pale striping on a dark background is effected; 

 the middle stripe is divided by a broad median grayish brown stripe; 

 lateral margins of the sclerite pale, yellow; scutum with the median 

 area pale yellow pollinose; the lobes dark brown, enclosing two 

 paler brown areas, of which the larger lies proximo-caudad ; scutellum 

 Ijrownish yellow with a brown line on either side of the broad median 

 area; postnotum dull bro\\aiish yellow. Pleura dull yellow, the 

 mesepisternum more brownish. Halteres light brown, the knobs 

 yello\\ash. Legs with the coxae and trochanters dull yellow; femora 

 dull yellow, indistinctly tipped with darker brown; tibiae pale 

 yellow at the joint, remainder of the tibite and tarsi dark brown. 



