no Memoirs on the Coleoptera 



mass; body oval, with even and close vestiture, somewhat as In Forandia 

 and Forandiopsis; beak short, rather thick, joining the head without trans- 

 verse impression; eyes notably small; presternum broadly, shallowly con- 

 cave, the coxse well separated. [Type M. uniformis nov.] . . . . Microforandia 



Basal segment of the antennal club always less than half the mass 62 



62 — Anterior coxae narrowly separated. Body broadly oblong-oval, with con- 

 spicuous variegated vestiture; beak smooth, cylindric, separated from the 

 head by a feeble transverse impression; prosternum feebly impressed, 

 slightly bitumorose anteriorly; upper surface closely punctate. [Type C. 

 binocularis nov.] Calorida 



Anterior coxae well separated; body densely punctate throughout 63 



63 — Antennae very moderate in length, with the outer funicular joints frequently, 

 and the base of the club apparently always, dentate in the male, inserted 

 beyond the middle of the beak. [Type 0. creperus Boh.]. . . Odontocorynus 



Antennae long and more slender, medial in insertion; beak longer and more 

 slender. [Type L. flaviscutis nov.] Ladustaspis 



64 — Antennal club solid, cylindric and very elongate; beak separated from the 

 head by a moderate transverse impression; anterior coxae rather well sepa- 

 rated; prosternum bispinose in the male; elytra with dense scales in one or 

 two lines or basal areas on each. [Type Calandra signum Fabr.] 



Cylindrocerus 



Antennal club normal and with distinct sutures; prosternum strongly spined in 

 the male, narrowly canaliculate 65 



65 — Prosternal spines long, flattened and gradually sharply pointed; body only 

 moderately elongate, variably ornamented; anterior tarsi of the male not 

 modified. [Type D. geminus Pasc] Dimesus 



Prosternal spines short, broadly triangular; body more elongate-rhomboidal; 

 integuments wholly glabrous; anterior tarsi of the male very broad and 

 conspicuously fringed. [Type Cylindrocerus flabellitarsis Boh.] 



Dactylocrepis 



66 — Body stout, rhomboidal, large in size, shining, smooth and wholly glabrous; 

 anterior coxae widely separated, the prosternum with two long, slender and 

 acutely pointed, outwardly curved porrect processes in the male; prothorax 

 abruptly tubulate at apex; scutellum transverse, free; legs slender, the 

 femora not spiculate, the tarsi broad, densely pubescent; anterior legs 

 notably elongate in the male. [Type N. sarpedon nov.] Nedestes 



There are many isolated or exceptional types of organic structure 

 among these hosts of genera, such as Neplaxa, Crostis, Crostidia, 

 Garnia, Zygozalestes, and Nedestes, with its very remarkable man- 

 dibles. 



The genus Gerceus Pasc, of the Mexican regions, is allied to 

 Centrinaspis but differs in two important particulars, the mandibles 

 having, externally at base, a prominent obtuse tooth, of which 

 there is no trace in that genus, and the first two joints of the anten- 

 nal funicle are both greatly elongated, while in Centrinaspis the 

 second is much shorter than the first, which is as long as the next 

 two and one-half to three joints combined. 



Two distinct generic types were confused by me (Mem. Col. IX, 

 p. 390) under the proposed name Linogerceus, and, as a definite 

 species, the Centrinus lineellus, of LeConte, was named as the type, 

 and as species of this peculiar type prove to be merely Centrinaspis, 



