224 CALIFORNIA ACADEMY OF SCIENCES. 



these forms from the region of Cape St. Lucas as au- 

 tocthonous, but as incidental, and not well settled. Forms 

 affecting cacti and plants of the dry wastes hold their 

 position to a remarkable degree ; but they are so few in 

 number as to form only a small exception to the truly in- 

 difjenous fauna. 



The list given below embraces all the species which 

 have been examined b}' the writer from any part of the 

 great peninsula of Lower California, excepting only such 

 new forms as were too mutilated to be referred to their 

 genera. About thirty species, known to me only by 

 fragments, still remain to be recorded, among which are 

 some interesting Capsidce, collected by Dr. Edward 

 Palmer, on the islands along the coast. 



An enumeration of the well recognized species shows 

 that the peninsula is inhabited by 5 Pachycorida? ; 6 

 Corimela^nidae; 7 C3^dnid£e ; 39 Pentatomida^ ; 42 Cor- 

 eid^ ; 2 Berytida? ; 41 Lyg^eid^; 7 Largida? ; 56 Cap- 

 sidai ; 3 Anthocorida? ; 6 Tingid^e ; 4 Aradidas ; 2 Ph}-- 

 matida; ; 20 Reduviida? ; i Limnobatid^e ; 4 Hydrobatidce ; 

 6 Veliidai ; 3 Saldida? ; 3 Galgulida?; 3 Naucoridre; 6 

 Belostomatidce; 2 Nepidce; 6 Notonectida;, and 5 Cor- 

 isidte. 



PACIIYCORID^. 



Tetyra bipunctata H. Schf. One specimen was taken 

 near Cape St. Lucas by John Xanthus de Vesey. 



Pachycoris torridus Scop. Numerous specimens 

 were collected at Cape St. Lucas by Mr. Xanthus, and 

 others were taken by Dr. Gustav Eisen, at San Jose del 

 Cabo, and other localities. 



Sphyrocoris obliquus Germ. One specimen is in the 

 collection from San Jose del Cabo, and I have examined 

 others from the vicinity of Cape St. Lucas. It is a com- 



