122 



Illinois Natural History Survey Bulletin 



Vol. 23, Art. 1 



from North Carolina, it has since been col- 

 lected in southeastern Oklahoma. The male 

 genitalia and wings are illustrated in fig. 

 452; the female and larva are unknown. 



Agraylea Curtis 



Agraylea Curtis (1834, p. 217). Genotype, 

 monobasic: Agraylea multipunctata Curtis. 



Hydrorchestria Kolenati (1848, p. 103). 

 Emended name. 



Only one species of the genus, multi- 

 punctata, has been collected in Illinois. The 



^454 



MULTIPUNCTATA B 



Figs. 453-454. — Agraylea, male genitalia. 

 Ay lateral aspect; B, ventral aspect; C, lateral 

 process of seventh sternite. 



only other eastern species, costello, differs 

 markedly in the shape of the claspers, fig. 

 453. 



Agraylea multipunctata Curtis 



Agraylea multipunctata Curtis (1834, p. 217). 

 Allotrichia signata Banks (1904^^, p. 215); 



Agraylea Jraterna Banks (1907^, p. 164); cf. 



Allotrichia flavida Banks (1907^, p. 164); 9. 

 New synonymy. 



Larva (mature type). — Length 5 mm. 

 Head round and robust, front legs short 

 and stocky, middle and hind legs longer, 

 with exceptionally long tarsal claws. Ab- 

 dominal segments enlarged gradually to 

 beyond middle and decreasing to apex, seg- 

 ments separated by a constriction and with- 

 out dorsal armature. 



Case. — Purselike, formed of two sym- 

 metrical ovate valves and with anterior and 

 posterior slits. The case is carried erect. 

 Construction of fibers often mottled. 



Adults. — Length 4-5 mm. Color salt- 

 and-pepper mottling to almost uniformly 



Fig. 455. — Agraylea multipunctata, female 

 genitalia. 



black. Venation relatively complete, much 

 as in fig. 452. Male genitalia as in fig. 454. 

 Female genitalia as in fig. 455. 



Holarctic in distribution, this species is 

 taken commonly throughout the northern 

 states and Canada. In Illinois our records 

 are most abundant in the northeastern cor- 

 ner. The larvae have been taken in both 

 lakes and rivers. In addition to Illinois, 

 we have records from British Columbia, 

 Colorado, Maine, Manitoba, Michigan, 

 Minnesota, New Brunswick, New York, 

 Nova Scotia, Ontario, South Dakota, Vir- 

 ginia, Wisconsin. 



Illinois Records. — Antioch: July 1, 



1931, Frison, Betten & Ross, 2 5 ; July 7, 



1932, at light, Frison & Metcalf, S S , 9 9. 

 Fox Lake: July 1, 1931, Frison, Betten & 

 Ross, 2$, 6$; Sept. 22, 1931, Frison & 

 Ross, S S ,69 ; Oct. 4, 1931, Ross & Mohr, 

 5 5,3$; June 30, 1935, DeLong & Ross, 

 $ S , $ 5 ; May 28, 1936, in weeds, H. H.j 

 Ross, 3 larvae; June 10, 1936, Ross &j 

 Burks, 1$. McHenry: June 30, 1931, 

 Frison, Betten & Ross, 1 $ . Palos Park.I 

 Mud Lake: Aug. 3, 1938, Ross & Burks, 



