PPENDIX F. ORTHOPTEROUS INSECTS. 231 



. IIL BRACHYPEPLUS, Charp. 



Gen. char. — -Body acrydoid ; elytra and wings rudimentary ; antennas 

 rather short ; pronotum tricarinated ; surface between the carinas granu- 

 lated. Second joint of tarsi very short ; first and third elongated; last 

 one terminating by two curved claws, between which is situated a sub- 

 circular fleshy disk.. 



Syn. — Brachypeplus, Charp. Orth. descr. et pict. Fasc. IX, 1843, 

 Tab. li. 



Obs. — This genus, established by Toussaint de Charpentier in his 

 Orthoptera descripta et picta, was not characterized, owing, perhaps, to 

 the fact that one species only was known and described by him under 

 the name of B. virescens, said to inhabit " Mexico. " It may easily be 

 distinguished from the one we shall describe by its much shorter antennas 

 and slenderer tarsi ; also by its color, which is deep-green, with a few 

 brown spots on the pronotum, and a double series of these along the 

 upper part of. the abdomen. 



3. Brachypeplus magnus, Girard. 



JOOLOGY, PI. XV, fig. 1-4. 



Spec char. — Reddish brown ; ' elytra dotted with black ; antennas 

 bluish brown ; femora and tibiae reddish ;.- tarsi purplish ; spines black 

 towards tip ; femora sub fusiform ; a carina along the upper and middle 

 region of the abdomen. 



Description. — The pronotum is one-third of the length of the abdo- 

 men, overlapping posteriorly the anterior abdominal segment entirely 

 and half of the second. The entire number of abdominal segments or 

 articulations is eleven, cariuated upon their medial line, and continuing 

 the medial carina of the pronotum all along the middle region of the 

 abdomen above. Antennas a little longer than the pronotum, and com- 

 posed of about twenty short joints. The tibiae are shorter than the 

 femora, and provided, the two anterior pairs internally, and the posterior 

 pair externally, with two rows of spines, the inner row the strongest. 

 The femora are sub-fusiform; the posterior ones a little broader than 

 thick, but never as much compressed as in B. virescens, in which these 

 organs present sharp edges. The tarsi are all tetramerous: the first 

 article is the stoutest and the longest, the second being quite short; 



