8 _ [May 



3. O. Audouinii, Reiche, Ann. Soe. Ent. Fr. 7, 300; tab. 10, fig. 

 2 : Thomson, Monog. des Cicind. tab. 3, fig. 7 — 8 r Lee. Pac. R R. 

 Report, 1857, p. 27; tab. 1, fig. 2. 



Cabinetof the Society. This species, as well as 0. Dejeanii, is 

 said to be quite common in Oregon and Washington Territory, and are 

 found running on the ground like spiders. 



Tetracha, Westw. 



1. T. Carolina, Linn. {Cicimlela^ Syst. Nat. 2, 657; Gmelin, 1, 

 4, 1922 : Oliv. Ent. 2, 33, 29; tab. 2, fig. 22: Fabr. Syst. El. 1, 233: 

 Dej. Spec. 1, 8: Thomson, Monog. des Cicind. p. 30; tab. 4, fig. 9 — 10. 



Megacephala caroliiH'nda., Latr. Gen. Crust, et Ins. 1, 175. 



Megaceplahi ocn'dentalis, Klug, Pries, vorr. Ins. 11 ; Jahrb. Ins, 1, 5. 



Megacephala mdcu/lcoDu's, Lap. Rev. Ent. de ^ilb. 2, 29. 



Megacrphala mexicann, Gray, Griff, An. Kingd. 1, 263; tab. 29, fig. 

 1: Chevr. Col. du Mex. 1st Cent. 



Cabinet of the Society. Found in the Southern States, also in Cuba 

 and Mexico. This beautiful insect is very abundant in Texas, under 

 logs and stones near the water's edge ; when pursued they do not hesi- 

 tate to plunge into the water and conceal themselves under stones, and 

 remain there a long time. They very seldom fly, but run with great 

 velocity. 



2. T. geniculata, Chevr. (Megacephala) Col. du Mex. 1st Cent. 

 27. Lap Rev. Ent. de Silb. 2, 29 : Thomson, Monog. des Cicind. p. 

 31, tab. 5, fig. 1. 



Found in INJexico. According to Mons. Thomson, this species is 

 synonymous with T. sob rina, (Dej.) from Brazil. 



3. T. virgula, Thomson. Monog. des Cicind. p. 31. 

 From Cuba. 



4. T. infuscata, Mann. (Megacephala) Bull, de Mosc. 1837: 

 Thomson, Monog. des Cicind. p. 32; tab. 5, fig. 2. 



Megacephala lati'pennis, Chaud. Bull. de. Mosc. 1843, p. 42. 

 Megacephala ohsrurata, Chaud. ib. 



From St. Domin2;o. 



5. T. a e u t i p e n n i s , Dej. (Megacephala) Spec. 1, 13 : Lap. Etud. 

 Ent. p. 35; Rev. Ent. de Silb. 2, 32: Thomson, Monog. des Cicind. p. 

 36; tab. 6, fig. 5—6. 



Megacephala Laportei, Chevr. Rev. Ent. de Silb. 2, 83. 

 Megacephala occiden talis, Klug, Ins. doiib. p. 11. 

 Megacephcda adonis, Lap. Etud. Ent. p. 35. 

 Found in Cuba, Hayti and St. Domingo. 



