ANEPSLCUS.—CISSOCRYPTUS. 601 
Head rather small, finely punctured; eyes a little convex, contiguous with the thorax. 
Thorax broader than long, slightly narrowed behind, transversely convex, the basal and 
lateral margins extremely indistinct, the latter placed (in front) low down so as to be 
concealed ; anterior angles very much rounded, hinder angles very obtuse; surface 
shining, not at all impressed, only finely punctured. Elytra with regular series of fine 
punctures, the inner one of which develops behind into a fine stria, while the outer 
series are obsolete ; interstices not punctured. Legs feeble. Under surface with very 
little punctuation. Three specimens. 
CISSOCRYPTUS, gen. nov. 
Antenne breves, 11-articulate; clava magna, abrupta, triarticulata. Tarsi 5-articulati; articulis basalibus 
tribus parum elongatis, articulo 4° tenuiore, parum elongato, precedentibus simul sumtis subequali, 
Abdomine segmento primo ventrali secundo longiore, segmentis 2°-5™ equalibus brevibus. Coxze poste- 
riores processu sat lato, acuminato, disjuncte. 
The single species referred to this genus bears a certain resemblance to various 
Cioide, but I think it is really allied to the preceding (Anepsicus &c.), from which 
indeed, so far as I can see, it is distinguished only by a number of characters of 
subordinate importance. We have only one example, and it is in a very indifferent 
state of preservation. 
The shape of this insect recalls to some extent the genus (is; it is less elongate than 
the allied forms. ‘The labrum is free and conspicuous. The terminal joints of the 
palpi are not broad. The prosternum is large, its anterior lateral sutures only 
moderately distinct. The front coxe are very small, not prominent, placed quite at 
the back of the prosternum ; the process separating them is slender, and is bent up 
immediately behind them. ‘The side-pieces approach very near to this process, if they 
do not actually touch it. The middle coxe are circular, not prominent, moderately 
distant ; the metasternum is moderately long. The femora project but little beyond 
the sides of the body. The external apical angles of the tibie are well marked, but 
not prominent. 
- 1. Cissocryptus insolitus, sp.n. (Tab. XVIII. fig. 20.) 
_ Parum elongatus, piceus, antennarum basi pedibusque testaceis; prothorace subquadrato, basi et lateribus 
subtiliter marginatis, angulis anterioribus obtusis, posterioribus fere rectis, sat crebre fortiter punctato, 
disco bi-impresso ; elytris seriatim subtiliter punctatis. 
‘Long. 3 millim. 
Hab. Mexico, Guanajuato (Sallé). 
Antenne rather short, joints 4-8 small, the eighth transverse ; the terminal three 
form a broad abrupt club, the ninth and tenth being strongly transverse. Head broad, 
feebly punctate, the epistome impressed on each side. Thorax almost as broad as 
the elytra, very slightly curved at the sides and little narrowed behind. Elytra rather 
short, with distinct series of punctures, the inner of which becomes a stria at the tip; 
BIOL. CENTR.-AMER., Coleopt., Vol. II. Pt. 1, March 1900. _ 4 H* 
