227 



Usinger: Hemiptera 



as wide as head including eyes; size larger, more than 

 3 mm 12 



12. Labrum entirely black; size small, 3'4 mm.; Inyo County 



ourayi D. & H. 1949 



— Labrum pale, at least on basal half; size larger, 3!j mm. 

 or more 13 



13. Corium broadly clothed with subappressed golden 

 pubescence on basal half (as seen with light from in 

 front of the specimen); size approximately 5 mm.; 

 Oregon, British Columbia, Alaska 



fernaldi Drake 19496 



— Corium with golden pubescence lacking, or inconspic- 

 uous and scattered or confined to extreme base of 

 corium 14 



14. Extreme lateral margins of corium entirely dark; size 

 relatively large, about 5 mm.; Lake Tahoe and Argus 

 Mountains, California explanata (Uhler) 1893 



— Lateral margins of corium more or less interrupted with 

 pale; size smaller, 4 to 4 3 £ mm 15 



15. Pubescence of upper surface short but dense and sub- 

 erect, shaggy on head; central California 



notalis Drake 1950 



— Pubescence of upper surface even, subappressed ... 16 



16. Lateral margins of pronotum entirely black, relatively 

 strongly arcuate 17 



— Lateral margins of pronotum pale, comparatively feebly 

 arcuate 18 



17. Corium glabrous, with fine golden yellow pubescence. 

 Hemelytra varying from predominately pale to black, the 

 intermediate forms with anterior transverse fascia 

 interrupted or obscured (fig. 7:42); widespread, Europe 

 and North America pallipes (Fabr.) 1794 



— Corium dull, with gray pubescence. Hemelytra varying 

 from predominately pale to black, the intermediate forms 

 with anterior transverse fascia clear or scarcely inter- 

 rupted (fig. 7:42); widespread 



arenicola (Scholtz) 1846 



18. Pronotum broadly pale laterally and posteriorly, except 

 at middle behind black callosities; size relatively 

 small, about 3^ mm.; Arizona balli Drake 1950 



— Lateral margins of pronotum narrowly pale; size larger, 

 more than 4 mm 19 



19. Pale color of pronotal margins not reaching anterior 

 angles and scarcely reaching humeral angles; length 

 approximately 4 mm.; southern and central California 

 (see Drake and Hottes, 1950) coxalis (Stal) 1953 



— Pale color of pronotal margins reaching both anterior 

 and humeral angles; length nearly 5 mm.; El Dorado, 

 Mono, and Inyo counties opiparia D. & H. 1955 



REFERENCES 



DRAKE, C. J. 



1949a. Concerning North American Saldidae. Arkiv for 



Zool., 42B (3): 1-1. 

 19496. Some American Saldidae. Psyche, 56:187-193, 



1 pi. 

 1950. Concerning North American Saldidae. Bull. Brooklyn 

 Knt. Soc, 45:1-7. 

 DRAKE, C. J., and LUDVIK HOBERLANDT 



1950. Catalogue of genera and species of Saldidae. Acta 

 Ent. Mus. Nat. Pragae, 26(376): 1-12. 

 DRAKE, C. J., and F. C. HOTTES 



1949. Two new species of Saldidae from western United 

 States. Proc. Biol. Soc. Wash., 62:177-184. 



1950. Saldidae of the Americas. Great Basin Naturalist, 

 10:51-61. 



1951. Stridulatory organs in Saldidae. Great Basin Nat- 

 uralist, 11:43-46. 



1954. Synonymic data and description of a new Saldid. 

 Occ. Paps. Mus. Zool. Univ. Michigan, 553:1-5. 



1955. Concerning Saldidae of the Western Hemisphere. 

 Bol. Ent. Venezolana, 11:1-12. 



HODGDEN, B. B. 



1949. New Saldidae from the Western Hemisphere. Jour. 

 Kansas Ent. Soc, 22:149-165. 



PARSHLEY, H. M. 



1922. A report on some Hemiptera from British Columbia. 

 Proc. B.C. Ent. Soc, 18:13-24, 1921. 

 REUTER, O. M. 



1912. Zur generischen Teilung der palaarktischen und 

 nearktischen Acanthiaden. Ofv. Finska Vet. -Soc. 

 F6rh., 54A(12):l-24. 

 SLATER, J. A. 



1955. The macropterous form of Lampracanthia crassi- 

 cornis (Uhler). Jour. Kansas Ent. Soc, 28:107-109. 

 STICHEL, W. 



1934. Illustr. Bestimmungstabellen Deutsch. Wanzen, 

 Lief., 10:301-302. 

 UHLER, P. R. 



1877. Report upon the insects collected by P. R. Uhler 

 during the explorations of 1875, including monographs 

 of the families Cydnidae and Saldae, and the Hemi- 

 optera collected by A. S. Packard, Jr., M.D. Bull. U.S. 

 Geol. Geog. Surv. Terr., 3:355-475. 2 pis. 

 WAGNER, E. 



1950. Notes on Saldidae. I. The Saldula pallipes-group. 

 Acta Ent. Mus. Nat. Pragae, 26(371): 1-4. 



WILEY, G. O. 



1922. Life history notes on two species of Saldidae. 

 Kansas Univ. Sci. Bull., 14:301-308, 2 pis. 



Fig 



differe 

 Fabr., 



7:42. 

 nt dc 

 same 



a to e, Saldula arenicola Sz. showing types with 

 grees of darkening of hemelytra. f—j, S. pallipes 

 (Wagner, 1950). 



Family DIPSOCORIDAE 



Only the nominate genus Crypto stemma (H. S., 1835) 

 (=Dipsocoris Haliday 1855) is semiaquatic, other 

 dipsocorids living in leaf mold, rotten logs, and the 

 like. The family is characterized (McAtee and Malloch, 

 1925) by three-segmented tarsi, three-segmented beak, 

 four-segmented antennae with the first two segments 

 short and stout, the apical two long, slender, and 

 pilose. The ocelli are distinct in macropterous speci- 

 mens but reduced or absent in short-winged forms. 

 The hemelytra are usually long and slender with 

 several closed cells, the costal margin thickened and 

 broken by a distinct fracture. There are no meta- 

 thoracic scent gland openings in adults, and the 

 nymphs have three or four dorsal abdominal scent 

 gland openings. The body is covered by a fine pubes- 

 cence imparting a velvety appearance and serving as 

 a protection from wetting. 



