48 PHYTOPHAGA. 



In this species the fifth elytral stria is only half the length of the others and deeply 

 hollowed out near its base, followed directly by an equally developed convexity ; it is 

 further united to the following stria (called by Suffrian the eighth), and encloses a 

 smooth space something like a hatchet with two blades. The species varies from light 

 yellow to brown, and is closely allied to C. rimosus, but distinguished by the fine punc- 

 tuation of the thorax and the different directions of the punctuated strise. I have also 

 examined the specimen in the Berlin Museum. 



21. Cryptoceplialus insolidus. 



Cryptocephalus insolidus, Suffr. Monogr. vii. p. 29. 



Yellowish brown ; thorax scarcely punctured, with a narrow black posterior margin ; elytra with narrow 

 dark lines, following the strise, the latter with the sixth and seventh rows interrupted, the eighth curved 

 inwards. 



Length 2| lines. 



Hab. Mexico. 



22. Cryptocephalus maculipennis. 



Cryptocephalus maculipennis, Suffr. Monogr. vii. p. 30. 



Rufous ; margins of the thorax and two oblique narrow spots at its base flavous ; elytra distantly but deeply 

 subgeminate punctate-striate, flavous, each elytron with five transversely placed spots at the base (the 

 inner two of which are linear), three others behind the middle, and two near the apex brown. 



Length 2|-3 lines. 



Hab. Mexico, Orizaba, Cuernavaca (SalU). 



23. Crytocephahis atrofasciatus. (Tab. IV. fig. 2.) 



Below flavous ; thorax fulvous, the margins and two oblique basal spots obscure flavous ; elytra deeply 

 punctate-striate, flavous, each elytron with three deeply dentate black transverse bands. 



Length <f 2i, $ 3| lines. 



<S . Head with a few deep punctures, flavous, with a central fulvous spot ; antennae nearly as long as the 

 body, all joints from the fifth very slender and elongate, the first four and part of the fifth joints flavous, 

 the rest black ; thorax much narrowed towards the apex, posterior margin not lobed in the middle and 

 moderately rounded, surface very minutely punctate, fulvous, the margins and two more or less distinct 

 oblique basal spots flavous ; scutellum black ; elytra deeply and closely punctate-striate, the fifth stria 

 connected with the eighth by a short transverse row of punctures, representing the sixth and seventh 

 row, the latter two interrupted below the shoulder and limited by two transverse smooth elevated spaces, 

 behind which there is a continuation of the fifth and sixth rows, represented by a few punctures only ; 

 interstices near the lateral margins distinctly longitudinally costate ; the colour is the same as that of 

 the thorax or lighter flavous ; a deeply bilobed transverse band at the base of each elytron, another one, 

 immediately below the middle, distinctly toothed near the suture, and a third, apical band sometimes 

 interrupted, deep black ; all these bands extend from the lateral margin across the sutural one, the former 

 as well as the latter being also black ; underside flavous ; legs fulvous with lighter marks, the posterior 

 thighs extending quite as far as the elytra ; prosternum acutely bidentate. 



Var. The black of the elytra predominating so much as to enclose three transverse rows of yellow spots more or 



less interrupted by the black interstices; the apex also yellow. 

 $ . Much larger ; the basal and apical black elytral bands represented, the former by five, the latter by two 

 elongate spots ; posterior thighs much shorter than the abdomen ; last abdominal segment with a profoundly 

 impressed smooth fovea. 



Hab. Mexico, Cuernavaca (Salle). 



