230 APIS. {**. c, 1. a.) 



DESCR. Mas. 



CORPUS atrum, piibc albida canescens, punc- 

 tulis excavatis quasi granulatum. 



Caput. Fades ante antennas pube cineras- 

 ccnti tecta. Oculi pilosi. 



Truncus. Scuiellum inerme. Squamiilce dXrdd. 

 u^/^ fuscescentes, nebulosae, apice obscuriores, 

 nervis nigris anastomosi ferriiginea. Pedes 

 })ilosuli5 tibiarum spinalis testaceis. apophyses 

 anticae articulo primo antrorsum mucronato. 



Abdomen lineare, subcylindricum (w), cingulis 

 quatuor tomentoso-niveis, supra interruptis 

 infra continuis, ano quadridentato dentibus 

 intermediis furcatis^ segmento penultimo dente 

 marginali utrinque instructo. 



I have not yet met with the aculeate sex of this 

 species, but I do not hesitate to give it as the j4. 

 tonka of Fabricius, Gmclin, and Rossi, although 

 not of Linneus. The circumstance which prin- 

 cipally distinguishes it from the preceding species, 

 is the absence of the tooth on each side of the scu- 

 tellum, which constantly attends all the varieties cf 

 that insect. The abdomen of the male is likewise 

 of a different form, and its dorsal white fasciae are 

 interrupted. Miller, in Mr. Gray's interleaved 

 edition of the Systema Naturae, has described an 

 insect as A. quadridentata, very similar to the male 

 of our A. inermis, if it be not the same, in these 



(n)Tab.7. **■ c 1. a. fig. 15. 



words. 



