MALACODERMATA., 357 
CIS (p. 220). 
4 (a). Cis tetracentrum. (Tab. XIII. figg. 22, 22a, 3.) 
Oblongus, fuscus, dense sed breviter pubescens, confertim punctatus, parum nitidus; antennis testaceis, clava 
saturatiore; pedibus rufis. Long. 3-3} millim. ¢ 9. 
Mas. Capite, clypeo angulariter bituberculato, elevato; prothorace antice bidentato. 
Hab. Nortn America, Arizona (Morrison).—Mexico, Northern Sonora (Morrison). 
Rather larger and longer than C. bisbidens, to which it is rather closely allied. The 
two angular projections of the clypeus are further apart than in that species; they are 
formed from a ridge which takes its origin in the upper part of the canthus of the eye. . 
The front edge of the thorax in the male is produced into two prominent and sharp 
points, but these are not nearly so long as in C. disbidens, and whereas in that species 
they point slightly downwards over the head, in this species they curve a little upwards, 
though in both they are nearly straight. . 
The punctuation is very fine and close, and hidden by the short golden-brown and 
somewhat pruinose pubescence. Several specimens of this insect were collected by 
Morrison, and distributed indifferently as from “ Northern Sonora,” ‘‘ California,” &c., 
but the precise locality of their origin is uncertain. 
10. Cis bituberculatus. 
Oblongus, brunneus vel rufo-brunneus, vix punctatus, parum nitidus, brevissime setulosus ; antennis testaceis, 
clava fusca. Long. 24 millim. ¢ 9. 
Mas. Clypeo bidentato elevatulo, prothorace antice bidentato. 
Hab. Mexico, Oaxaca (Sallé). 
Brownish fuscous, the head beneath, and sometimes the front of the thorax, rufo- 
testaceous. Very finely, almost invisibly, punctured ; and only clothed with the finest 
and shortest pubescence, which under the microscope appears setulose, or upright and 
shining, but not hoary. The thorax in the male is quadrate, prominent, and elevated 
in front, the middle of the front margin being produced into two denticulations, which 
are close together, and not acute; in the female the thorax narrows a little in front. 
The head is small, the clypeus with two elevated but very small denticules. 
This species reminds one of the European C. bidentatus, but it is but half the size, 
whilst the punctuation is not distinct as in that species, and there is no depression 
between the thoracic protuberances. 
In one specimen these thoracic projections scarcely amount to more than a small 
notch in the front margin. About six examples from Sallé’s collection. 
11. Cis subfuscus. 
Brunneus vel fuscus, antennis pedibusque testaceis, his clava pilosella fusca ; elytris densius brevissime pube 
erecta vestitis, sat fortiter punctatus, nitidus; prothoracis lateribus distincte marginatis, minute crenulatis. 
Long. 12 millim. 
Hab. Mexico, Cordova, Vera Cruz (Sal/é). 
