Mannophorus forreri Bates, 1885

Mannophorus forreri Bates, 1885 View in CoL

( Fig. 164–177 View Figures 164–177 )

Mannophorus forreri Bates 1885: 327 View in CoL , 436; Aurivillius 1912: 473 (cat.); Blackwelder 1946: 590 (cat.); Linsley 1961: 633 (mimicry); Chemsak 1967: 77 (lectotype); Marqua 1976: 37 (dist.); Giesbert and Hovore 1976: 98 (dist.); Terrón 1992: 289 (dist.); Chemsak et al. 1992: 84 (cat.); Monné and Giesbert 1994: 146 (cat.); Monné 1994: 32 (cat.); Noguera and Chemsak 1996: 402 (dist.); Noguera et al. 2009: 88 (dist.);

Redescription. Male: Length 15–19 mm. Form moderate sized, elongate, parallel-sided; integument yellowish to reddish brown; head, antennae, legs, scutellum, maculae on pronotum, apical third to half of elytra, base of coxae, mesosternum, and parts of epipleura, epimeron, metepisterna and metasternum darker or black; dorsum confluently punctate; each elytron with three narrow elevated costae. Head small; vertex alveolate punctate, with glabrous midline between eyes; front rugulose, subconfluently punctate, each side below antennal insertions and above postclypeus with a deep pit, integument in middle between pits broadly, obliquely impressed along frontoclypeal sulcus; postclypeus confluently punctate; antennal tubercles coarsely, subconfluently punctate; genae short, anterior margins of lower eye lobes well separated from base of mandibles, integument nitid, irregular punctate, beneath confluently punctate; labrum finely punctate; pubescence, long, erect on antennal tubercles, dorsal anterior margins of genae, and labrum; mandibles with sides arcuate, pubescence sparse, depressed; antennae exceeding elytral apices by two antennomeres; scape conical densely, deeply, contiguously punctate, outside margin vaguely carinate, pubescence short, pale, suberect; antennomeres II to basal half of VI rugulose and coarsely, densely, contiguously punctate with short, depressed setae, remaining antennomeres from apical half of VI opaque, densely, minutely punctate covered with minute, appressed pubescence with few, longer, depressed setae on apices; antennomeres vaguely carinate on dorsum from III–VI, carinate on outside from apical half of III–X, and on inside of V–X; antennomer III longer than I; IV shorter than III and subequal to I; V longer than IV and subequal to III; VI, VII, VIII, IX subequal to V; X slightly shorter than IX; XI longest, apical third vaguely appendiculate. Pronotum wider than long (L/W: 0.92) with anterior and posterior margins narrowly darker or black, sides rounded; disc convex with seven dark or black maculae, one each on either side of anterior half, three on basal half, one in middle and one each on either side closer to base, and a smaller macula on each side in middle near outer edges ( Fig. 174 View Figures 164–177 ); integument coarsely, densely, confluently punctate with short, pale erect setae; apical margin collared, narrowly constricted behind, base impressed on sides; proepisternal area irregularly, finely punctate; prosternum with apical half transversely plicate, basal half rugulose, confluently punctate, integument thinly clothed with pale setae longer than those on pronotum; mesosternum coarsely, contiguously punctate, pubescence long, suberect; mesepimera and mesepisterna rugulose, contiguously punctate, obscurely pubescent; metasternum with integument densely, punctate, punctures sparser along midline, finer and denser near base of mesocoxae, pubescence dense, long, depressed and pale; metepisterna densely clothed with appressed, pale pubescence. Scutellum opaque, coarsely punctate. Elytra 2.6 times as long as broad; each elytron with three, narrow, raised costae not attaining apex, a subsutural impunctate costa, a partially punctate submarginal costa and another partially punctate narrower one in between ( Fig. 176–177 View Figures 164–177 ); integument between costae uniformly, coarsely, densely, contiguously punctate over basal four-fifths, more rugulose and deeply punctate on apical fifth; pubescence sparse, short, and suberect, setae on apical fifth slightly depressed; apices unarmed, rounded to truncate. Legs slender, femora slightly clavate, coarsely, densely punctate, dorsum sparsely clothed with short, depressed setae, inner surface clothed with pale suberect setae; meso- and metafemora slightly arcuate near base; metafemora falling far short of elytral apices; tibiae coarsely, deeply, contiguously punctate, clothed with short, depressed setae; protibiae with inner surface densely clothed with short, depressed, pale pubescence; metatarsomere I subequal to or slightly longer than tarsomeres II and III combined. Abdomen very densely, finely punctate, punctures sparser in middle, finer and denser on sides, integument densely clothed with long depressed, pale pubescence; apex of last sternite narrowly truncate, and vaguely emarginate at middle.

Female: Length 18–22 mm. Form slightly more robust and larger than male. Proepisternal area more confluently, densely punctate; prosternum densely, contiguously striate-punctate throughout. Antennae shorter than body. Abdomen with apex of last sternite broadly truncate, and vaguely emarginate at middle.

Materials examined. USA: Arizona: Pima Co.: Kitt Peak , 29 Aug. 1974, F. Hovore, 4000′, (1 male, CASC), 4200′(1 male, CASC) ; 4400′ (1 male, CASC), 4500′ (4 males), 4800′ (1 male, CASC) ; 4900′ (1 male, CASC) ; 5000′ (1 male); 20 Sept. 1970, 4200′, F. Hovore (1 male, CASC) ; 23 Sept. 1970, 4200′, F. Hovore (6 males, CASC) . MEXICO: Chihuahua: Guasaparis , 13 Oct. 1951, J. Marquis. M. Marquis (2 females, CASC) ; 15 Oct. 1951, J. Marquis. M. Marquis (2 females, CASC) .

Discussion. According to Bates (1885: 327), this species “agrees better generically with Mannophorus laetus than with Ischnocnemis due to the broader, rounder thorax,” and shorter antennae especially in males, which are “not much longer than the body.” The body is very elongate, almost cylindrical, and yellow reddish in color. The head, antennae, legs, maculae on pronotum, scutellum and apical third of elytra are darker or black. The dorsum is confluently punctate, and the base of the thorax is constricted and constriction extending to the rear corners. The apices of elytra are obliquely truncate with coarse intricate punctures.

Mannophorus forreri Bates can easily be distinguished from the other Mannophorus species by the yellowish color of its integument with seven black maculae on the pronotum and darker or black apices of elytra. The three narrow costae on each elytron will also separate this species from others with two ivory vittae. The lateral collar-like projection on the apex of the pronotum is not as prominent in this species compared to M. laetus LeConte. Also , the sides of scape and the dorsum of antennomeres III–VI are vaguely carinate in this species in addition to the lateral carinae on the outer and inner surfaces. Also, the dorsum of antennomeres appears to be vaguely excavated adjacent to the dorsal carina in females from apical half of III to VI.