Elateropsis trimarginatus (Cazier and Lacey, 1952)

Lingafelter, Steven W., 2015, The Prioninae (Coleoptera: Cerambycidae) of Hispaniola, with Diagnoses, Descriptions of New Species, Distribution Records, and a Key for Identification, The Coleopterists Bulletin 69 (3), pp. 353-388 : 363-364

18. Elateropsis trimarginatus (Cazier and Lacey, 1952) ( Figs. 3e , 16a )

Discussion. This species was described from one male specimen collected on Great Inagua Island, Bahamas (Cazier and Lacey 1952). A second specimen was recorded from San Salvador Island, Bahamas by Elliott (1993) and Turnbow and Thomas (2008). Since then, one additional female specimen representing a new island and new country record, was collected in the coastal forest of southeastern Dominican Republic (USNM). In color and structure, this specimen matches the male holotype. However, a few differences are noted, including the 11 th antennomere which is ovoid, not elongate, and the prosternum lacking a median elevation. A full description of the previously unknown female is provided below.

Elateropsis trimarginatus is similar in coloration and proportions to the Puerto Rican Elateropsis julio Lingafelter and Micheli, 2004 but differs by having a densely punctate pronotum (smooth between sparse punctures in E. julio ). Elateropsis sericeiventris is very similar but lacks a dense patch of white pubescence anterior to the scutellum (present in E. trimarginatus ). Elateropsis quinquenotatus has a similarly pubescent pronotum but has uniformly black elytra (mostly ferruginous in E. trimarginatus ).

Description, Female. Size 17.5 mm long; 6.5 mm wide between elytral humeri; integument mostly ferruginous on elytra except for base, scutellum, and periscutellar area which are black; remaining integument of head, pronotum, legs, antennae, and venter black. Head with broad v-shaped dorsomedial depression beginning anterior to antennal tubercle and widening posteriorly, extending inside plane of upper eye lobe inner margin and posteriorly beyond upper eye lobe; densely, irregularly punctate, both in size and distribution, but mostly confluent. Antennae extending just beyond basal third of elytra; mostly glabrous and densely microsculptured with scattered punctures. Antennomeres 4–11 flattened; poriferous sensory areas present on dorsolateral margins of antennomeres 4–7 and throughout dorsal surface on 8–11. Poriferous areas oval and elongate, of differing sizes. Antennomere 3 longest, antennomeres 4–10 triangular, much broader apically than basally, decreasing in length to 10 which is subequal in length to 11. Antennomere 11 ovoid.

Pronotum 5 mm wide; 3 mm long (1.6 times wider than long); with slight anteromedial impression; lacking raised calli; densely punctate with punctures at middle of disk larger than those at margins. Lateral margins crenulate from anterior margin to moderate spine just posterior of middle, and constricted behind spine toward base, mostly without crenulae. Glabrous except for patches of very dense, white pubescence on each lateral margin extending to head and 1 bordering scutellum. Prosternal process broad, extending beyond posterior margin of procoxae and widely separating them; covered with sparse punctures and erect, white setae; apex notched, receiving mesosternal process. Prosternum lacking any ventral processes.

Elytra 12.5 mm long; 3.3 mm wide (3.8 times longer than wide); glabrous, gradually narrowing apically; not divergent at suture. Punctation dense, mostly confluent, of similar size and density to punctures of pronotum. Elytral apex with weak lateral and sutural spines; rounded and dentiform between spines. Scutellum triangular, irregularly and sparsely punctate, with a few inconspicuous setae. Legs short, hind femur not reaching elytral apex. Femur gradually thickened toward apical fourth; each with 2 − 3 small denticles ventrally between thickest portion and apex, near tibial articulation. Metasternum with dense patch of appressed, white pubescence of similar size and angle to that of first ventrite. Metepisternum coated with dense, white pubescence except at anterior third. Abdomen with sparse, white setae throughout median area, and dense patches of appressed white pubescence at sides except for ventrite 1 which has the patches larger and extending around metacoxal margin. Last ventrite broad with apical margin angling slightly to a median notch.

Hispaniolan Locality. D O M I N I C A N REPUBLIC: La Altagracia Province (Parque Nacional del Este, Guaraguao , 18°19.568′N, 68°48.500′W, 0–5 meters, 24 July 2004, N. E. Woodley, 1 female [ USNM]) .

Figures

Fig. 3. Dorsal habitus of HispaniolanPrioninae.a) Elateropsis femoratus, male,b) Elateropsis lineatus, female, c) Elateropsis quinquenotatus, female, d) Elateropsis sericeiventris, male, e) Elateropsis trimarginatus, female, f) Elateropsis dichroma, female holotype, g) Elateropsis woodleyi, male holotype, h) Solenoptera dominicensis, male, i) S. dominicensis, female.

Fig. 16. Distribution maps of Hispaniolan Prioninae. a) Elateropsis sericeiventris, Elateropsis trimarginatus, Elateropsis dichroma, and Elateropsis woodleyi, b) Solenoptera dominicensis, Solenoptera scutellata, and Solenoptera rugosa.