236 GEO. n. HORN, m. d. 



in either sex, and when a sexual variation does occur, the male makes 

 the nearest approach to the acute angle, e. ij. 



(lornalU, % subtruncate, 9 rounded. 



man/iniifii, % subtruncate, 9 rounded, suture retracted, 



cuprdsrriif!:, % acute, 9 rounded. 



piirlhtna, % acute, 9 truncate. 



inncni, % acute, 9 sitjuatc and acute. 



Gdbbii, % obtuse, 9 broadly rounded. 

 These examples are sufficient to show the amount of sexual varia- 

 tion of this character. C. manjiaaUi, 9 , is remarkable for havinj^ 

 the tip retracted in such a manner that a portion of the sutural re<;,ion 

 is vertical. The suture in many species bears a spine of greater or less 

 length, common to both sexes and usually longer in the female. 



The si'rration of the apical regions has been noted at times, this 

 however, varies so greatly in both sexes that nothing general can 

 be said. 



Dromochorus. Guerin. — I must acknowledge that I entirely agree 

 with Dr. Lecoute in the suppression of this genus. There is no cha- 

 racter of sufficient moment for its separation, the only one known to 

 me which can be used is found in the middle tibia of the male. This 

 member is glabrous on the outer edge, like the female and entirely 

 lacks the pubescence so characteristic of the other species of Cicindchi 

 as far as known to me. In Ambli/rliila and Omus both sexes have 

 similarly pubescent middle tibite. Tetracha and Cicinde/a agree io 

 having the males pubescent only, while Dromochorus is not pubescent 

 in either sex. In every other sexual character Dromochorus does not 

 diifer Irom Ciclndda. 



Group (htraalis. 



The form of the thorax of the female is the special character of 

 this group. The thorax is broader at base and the hind angles ob- 

 tusely prominent, and between them is a deep basal impression. 



The claws are Ions and slender, as long or longer than the last 

 joint of tarsus. Posterior trochanters metallic in color. The posterior 

 angles of the third and fourth abdominal segments are very feebly 

 prolonged. The last two joints of the maxillary palpi equal. 



The three forms constituting this group seem to me to be merely 

 varieties of one species. The right mandible of the male bears on 

 its lower side near the tip a tooth, long and acute in dorsn/is, shorter 

 and less acute in mcdia^ and still less prominent in SnuUi/i. There 



