TITUBCEA. 27 



2. Tituboea mutabilis. 



Anomcea mutabilis, Lacord. Mon. p. 137. 



Eab. North America. — Mexico. — Colombia. 



This species is regarded by Lacordaire as a doubtful one. The male insect may be 

 recognized by the transverse piceous band of the elytra ; the female is identical with 

 that of T. rufifrons. 



3. Tituboea rufifrons. 



Anomosa rufifrons, Lacord. Mon. p. 135 l ; Chevr. Dej. Cat. 3rd ed. p. 443. 

 Eab. Mexico 1 , Jalapa (Edge). 



The thorax of this species is impunctate, and the vertex of the head almost smooth 

 or very finely strigose. The specimens collected by Mr. Hoge belong to var. c of 

 Lacordaire, and vary in size from 4 to 4j lines. 



4. Tituboea sphacelata. 



Anomcea sphacelata, Lacord. Mon. p. 138. 

 Eab. Mexico. 



I possess three specimens of this species, which I consider to be varieties of Lacor- 

 daire's type ; they differ in having the thorax punctate as well as the elytra, and in the 

 want of the longitudinal stripe on the latter. The head of this species is strigose 

 throughout ; it is, moreover, at first sight to be distinguished by the black semilunate 

 spot at each side of the thorax. 



5. Tituboea Sanguinipennis. (Anomcea sanguinipennis, Tab. II. figg. 16 & 17.) 

 Anomcea sanguinipennis, Lacord. Mon. p. 131 \ 



Eab. Mexico 1 ; Guatemala, near the city (Salvin), Zapote (Champion); Nicaragua, 

 Chontales (Belt) ; Costa Rica (Rogers). 



Male. Head distinctly strigose at the vertex, with a triangular fovea in the middle ; lower part of face punctate- 

 rugose and finely strigose, testaceous ; vertex black or marked more or less with rufous ; apex of jaws 

 piceous ; antennas black, four basal joints testaceous ; thorax narrowly transverse, as wide as the base of 

 the elytra, the posterior margin distinctly sinuate at each side, the anterior one straight, surface sub- 

 depressed, finely punctate near the base, the anterior portion impunctate, light testaceous, with a broad 

 transverse black band near the base which does not quite extend to the lateral margins ; elytra cylindri- 

 cal, very minutely punctured, opaque, testaceous, a round spot below the base near the sutural margin, 

 and a narrow, sinuate, transverse band below the middle, black ; underside black, densely covered with 

 silvery pubescence ; femora testaceous, streaked above with black, as well as the posterior tibiae, the 

 anterior ones and the tarsi entirely black, first joint of the latter as long as the two following united. 



Length 3§-4| lines. 



Var. a. 



The transverse band at the thorax interrupted or reduced to four small black spots. 



e2 



