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106 



EHTNCHOPHOEA. 



d the Lesser Antilles, it is best to keep the two forms separate. The male-ch 



of them, and both have a black variety 



M. hemipt 



has the elytral striae rather coarsely punctate and the elytra themselves usually streaked 

 with red to the apex, a system of coloration not seen in any of our very long series of 



M. 



The following varieties of the present species may be 



a. Rufous or ferruginous, the prothorax with three black stripes, the outer ones sometimes reduced to small 

 basal spots or altogether wanting, the elytra with the apical half or more black (sometimes including a 

 small red spot on the disc), the under surface and legs spotted or variegate with black \_sericeus, Oliv.]. 

 Southern United States to Peru. 



/3. Sanguineous, a median stripe on the prothorax, the scutellum, elytra, knees, and part of the under surface, 

 black, the elytra sometimes with one or two small red spots at or near the base. (Fig. 8.) — Costa Eica 

 (Canas Gordas, &c), Panama. 



y. Black, the prothorax with a stripe on each side of the disc (sometimes bifurcate posteriorly), the scutellum, 

 the base of the elytra, and sometimes one or two small spots on the disc beyond the middle, and at 

 most a small spot at the base of the femora, red. (Pig. 9.) — Guatemala (Las Mercedes, Pacific slope) ; 

 Honduras (Puerto Cortez). 



2. Black, the elytra sometimes with a red patch at the base [carbonarius , Chevr.]. — Mexico — Nicaragua. 



The type of M. sericeus was from San Domingo, that of M. carbonarius from 

 Cosamaloapam, Mexico. 



2. Metamasius dimidiatipennis. (Tab. V. figg. 10, 10 a, 6 .) 



Sphenop horus dimidiatipennis, Jekel, Ann. Nat. Hist. (3) ii. p. 359 (1858) \ 



3 . Eostrum about two-thirds the length of the prothorax, curved, moderately stout, almost smooth, shallowly 

 sulcate and crenate on each side beneath ; ventral depression broad and very shallow, the fifth segment 

 with a transverse pilose fovea at the apex ; femora and tibiae finely, densely ciliate, the tibiae feebly sinuate 

 within, the hairs on the posterior pair long ; anterior coxae with a small fascicle of short fulvous hairs. 



$ . Rostrum similar to that of the <3 , but neither sulcate nor crenulate beneath ; femora and tibiae with 

 fewer and shorter hairs. 



Hob. Mexico {Mus. Brit.), Toxpam in Vera Cruz (Salle) ; Nicakagua, Blewfields 

 (Bichmond, in U.S. Wat. Mus.); Costa Rica (U.S. Nat. Mus.), Surubres 250 metres 



(Biolley), Azahar de Cartago (Underwood); Panama, Chiriqui (Trotsch), Canal Zone 

 (Jennings, in U.S. Nat. Mus.), Taboga I. (Champion, J. J. Walker). 



The type of this species (now in the British Museum) was found by Capt. Kellett 

 during the voyage of H.M.S. ' Herald,' doubtless at Panama, though the locality 

 given 1 is simply " Pacific shore of Central America." It is a larger, longer, and more 

 depressed form than M. sericeus. The colour is variable and three forms are 

 represented amongst the seventeen examples seen : 



a. Black, the prothorax rufous, with three black spots (two basal and one median), the elytra with about 

 the basal third rufous, a transverse black spot below the shoulder excepted. (Fig. 10.) — Nicaragua, 

 Costa Rica, Panama. 



/5. Coloured as in a, but with the elytra in great part rufous, a subhumeral spot, a transverse patch at about 

 the middle of the suture, and the sides and suture towards the apex black, the rostrum rufous in one 



specimen. — E. Mexico. 

 y. Black, the elytra with the base and a spot at some distance below the shoulder rufous. — Costa llica. * 









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