502 CALIF"ORNIA ACADEMY OF SCIENCES. 



thicker, 7-9 postcubitals. Hind wings with 9-11 antecu- 

 bitals, first and fifth thicker, 7-10 postcubitals. Abd. S 

 42-5-45' ? 41-45- Hinci wing S 30-33- ? 33-34-5- Total 

 length S 56-60, $ 55-60. Pterostigma S 4-5, ? 4-5-5- 



Distribution. Mexico (Baja California as above), Cal- 

 ifornia (Los i\ngeles by Dr. A. Davidson, P.P. Calvert's 

 coll.), Oregon, Texas, Georgia, Massachusetts (Boston). 



OcTOGOMPHus Selys. 



Selys, Biill. Ac. Belg. (2) xxxv, p. 759, 1873. 



14. OcTOGOMPHus sPECULARis (Hagcn) Seh^s. PI. 

 xvi, figs. 80-84. 



Neo(jomx>hus? s. (Hageu) Selys I. c. (2) vii, p. 544, 1859. Hagen, Syu. 

 Near. N. A. p. 110, 1861. 0. s. Selys I. c. (2) xxxv, p. 760, 1873. 

 Hagen, Proc. Bost. Soc. N. H. xviii, p. 44, 1875. 

 l$Comondu, not dated. 



Distrihiition. Mexico (Baja California as above), 

 California. 



Subfamily .^SCHNIN^. 



^scHNA Fabricius. 



[Mtshna) Fabr. Syst. Eut. p. 424, 1775. Karsch, Eiit. Nach. xvii, 

 p. 288, 1891. Calvert, Trans. Am. Ent. Soc. xx, p. 22-2, 1893. 



Synopsis of the sjK'cics known from GaUforn'm and Baja California ( males 

 only). 



Anal triangle 2-celled. 



1. Superior appendages with entire margins, a superior longitvid- 

 iual carina which is not denticulated, and the apex acute; 10 with 

 three basal, dorsal teeth of which the middle one is largest; no 

 black line on fronto-uasal suture, juncea L. var. verticalis Hagen. 



2. Sui^erior appendages with a subquadrangnlar excision on the 

 inner margin iu the apical half, and the apex obtuse; no dorsal 

 teeth on 10. luteipennis Burm. 



Anal triangle 3-celled. 



Margins of superior appendages entire. 



3. Apex of sup. app. obtuse; 10 with basal, dorsal teeth of which 

 the middle one is largest. ralifondca (Hagen MS) 11. sp. 



4. Apex of superior appendages acute, curved downwards; 10 with 

 dorsal teeth. corniyera Brauer. 



