714 FAMILY VIII. GRYLLID.E. THE CRICKETS. 



ff. Marks on basal joint usually narrow, parallel, distinct (Fig. 

 240, d) ; head, thorax and abdomen wholly pale greenish- 

 yellow. 338a. QUADRIPUIfCTATUS. 



ee. Head, thorax and antennae reddish-brown; wings in life with 

 conspicuous green veins; black marks on basal antennal seg- 

 ment broad, rarely confluent (Fig. 240, f. ) 339. PINI. 



off. Antenna? without black marks on basal segment (Fig. 240, g) ; teg- 

 mina of male more than half as broad as long, their greatest width 

 more than 6.5 mm.; head and basal joints of antennae usually suf- 

 fused with pinkish. 340. LATIPEXNIS. 



335. OECANTHUS NIVEUS (DeGeer), 1773, 522. Snowy Tree Cricket. 



Form moderately slender. Ivory white, more or less tinged, especially 

 in female, with a very pale green; top of head and basal segments of an- 

 tennae usually suffused with pale orange-yellow; black spots on both basal 

 segments round. Pronotum almost as broad as long. Tegmina of male 

 broader than in any species except latipennis. Wings but slightly exceed- 

 ing tegmina, male, surpassing them about 4 mm., female. Ovipositor 

 short, straight, tipped with black. Length of body, $ and $, 12 14.5; 

 of tegmina, $, 1314, $, 1213; of hind femora, $, 8.59, $, 910; of 

 ovipositor, 5.5 mm. Greatest width of tegmina, $, 5.5 6 mm. (Fig. 241.) 



While the snowy tree cricket occurs in 

 all parts of Indiana, it appears to be less 

 common in the State than either 0. angus- 

 tipcnnis or quadripunctatus, and much of 

 the published literature relating to it has 

 doubtless been of these and other species. 

 Like the other members of its genus nircus 

 reaches maturity in southern Indiana 



Fig. 241. Male and fe- , . 



male. about July 1st, and in the central part a 



(After Beutenmuller.) . , , ... 



fortnight later, and exists in that stage 



until after heavy frosts. The females appear to be more plentiful 

 than the males, the latter being more often heard than seen. 1 Hir- 

 ing the day they keep themselves hidden among the foliage and 

 flowers of various plants, but as night approaches they come 

 forth and the male begins his incessant, shrill, chirping note, 

 which he continues with little or no intermission till the approach 

 of morning warns him to desist. 



The range of nivens is said by Fulton (1915) to be wider than 

 that of any other Occantlius, extending from New England and 

 Ontario to Minnesota and Utah, south and southwest to Georgia, 

 Texas, Cuba and Mexico. It is not recorded from Florida and 

 ft. & H. (1916, 296) state that Thompson's Mills, Ga. and Cran- 

 berry, N. Car. are the only reliable definite records from the 

 southeastern United States. 



