260 Mr. W. F. Kirby on 



millim. 



Long, segment! terminali 9 



,, femorum andcorum 24 



„ „ mediorum 19 



„ „ posteriorum 22 



„ tibiarum anticarum 26 



„ „ niediarum 15 



„ „ posteriarum 22 



In many particulars tliis species agrees with the description 

 of Bacillus Buchhohi, Gerstaecker, from the Cameroons 

 (Mitth. naturvv. Ver. Neu-Vorpommern und Riigen, xiv. 

 p. 99, 1883), but it is much larger, and the structure of the 

 abdomen appears to be very dissimilar in the two insects. 



Family AchetidaB. 

 Subfamily Gryllotalpin^. 



Gryllotalpa africana. 



Gtyllotalpa africana, Palisot de Beauvois, Ins. Afr. Am^r. p. 229, 

 Orth. pi. ill. c. fig. 6 (1805?). 



An abundant species throughout the warmer parts of the 

 world. 



Family Phasgonuridae. 



Subfamily Hetrodinm. 



Cosmoderus KingsleycB^ sp. n. (PI. XII. fig. 7.) 



Long. 21-25 millim. 



Eufo-testaceous, abdomen inclining to cupreous, especially 

 in the female ; face yellowish, slightly varied with red, and 

 with a black spot on each side at the base of the clypeus ; 

 antennae reddish on the basal half, shading into blackish, at 

 least 40-jointed, the scape and second joint thickened, the scape 

 half as long again as broad, the second joint hardly longer 

 than broad, the third joint twice as long as the fourth, the 

 rest tapering and gradually decreasing in length to beyond 

 the middle, when they become longer and more cylindrical ; 

 vertex and thorax closely punctured, the latter more coarsely ; 

 thorax with two strong spines at the frontal angles, a strong 

 spine on each side, between which runs a raised ridge, and a 

 row of 8 large spines behind. There is one more large spine 

 on each side slightly before the others ; on the yellow lower 

 ridge of the thorax most of the spines are red, tipped with 

 black ; those on the legs are described in characterizing the 

 genus. The dividing ridge of the thorax is brownish ; before 



