Prionacalus uniformis Waterhouse, 1900

Santos-Silva, Antonio, Komiya, Ziro & Nearns, Eugenio H., 2013, Revision of the Genus Prionacalus White, 1845 (Coleoptera: Cerambycidae: Prioninae: Prionini), The Coleopterists Bulletin 67 (3), pp. 201-240 : 231-238

Prionacalus uniformis Waterhouse, 1900 ( Figs. 124–127 )

Prionocalus uniformis Waterhouse 1900: 505 , 1 fig.; Quentin and Villiers 1983: 225 (key); Hüdepohl 1985: 121 (key).

Psalidognathus (Prionocalus) uniformis ; Lameere 1910: 375, 1913: 65 (catalogue), 1919: 121 (checklist); Blackwelder 1946: 555 (checklist).

Prionacalus uniformis ; Monné and Giesbert 1994: 15 (checklist); Monné 1995: 61 (catalogue), 2006: 84 (catalogue); Komiya 2001: 30 (fig. 4), 31, 32 (key); Di Iorio 2003: 3 (distribution); Monné and Hovore 2005: 19 (checklist), 2006: 18 (checklist); Jeniš 2010: 19 (syntype male), 111 (male); Monné et al. 2012: 7 (checklist).

Redescription. Lectotype male ( Fig. 124 ). Integument blackish with some parts dark brown; scape, pedicel and basal 1/2 of antennomere III dark brown; antennomeres IV-XI reddish, slightly lighter on distal antennomeres; palpi reddish; elytra blackish with areas slightly reddish, mainly around basal sutural 1/2; femora dark brown with blackish areas; tibiae blackish on base, gradually becoming lighter towards reddish apex; tarsi reddish, with part of claws blackish. Head: Coarsely punctate-vermiculate between cephalic carinae; area between apex of cephalic carinae and pronotum coarsely, abundantly, confluently punctate; area between cephalic carinae with well-marked, longitudinal furrow from clypeus to after posterior ocular edge; distal margin of vertex (close to abrupt declivity) centrally distinctly emarginate. Antennal tubercle coarsely, sparsely punctate on base, gradually becoming smoother towards apex; distinctly far from each other (distance between them equal to almost twice width). Cephalic carinae distinct, moderately elevated from base to apex; convergent from antennal tubercle to slightly after eyes; apex not elevated, not forming triangular tubercle. Area behind eyes with abundant small asperities. Lateral tubercle of head large, rounded at apex. Distal area of clypeus distinctly concave. Distance between upper ocular lobes equal to about 3.0 times longest width of 1 lobe. Gena rounded at apex, without downward projection. Submentum coarsely, abundantly, confluently punctate. Mandibles shorter than head; surface coarsely, abundantly punctate, gradually finer towards apex. Last maxillary and labial palpomeres notably enlarged towards apex. Antennae reaching distal 1/3 of elytra; scape distinctly enlarged from base to apex, coarsely, confluently punctate on basal 1/2, gradually finer, sparser towards apex; antennomeres III-IV rounded at apex on both sides; antennomeres V-X dentate at outer distal angle. Thorax: Latero-anterior angles of prothorax projected forward, rounded; latero-posterior angles of prothorax distinctly rounded, not projected; lateral margin with 3 jointly protracted teeth, the anterior tooth smaller than others. Pronotum centrally with distinct, transverse depression; surface coarsely, confluently punctate; disc with 1 small, elliptical, impunctate, shiny callosity on each side close to anterior margin. Elytra coarsely vermiculate throughout; almost 3.0 times longer than prothorax; apex individually rounded. Apical tooth of humeral projection small. Abdomen: Not surpassing elytral apex. Ventrites ( Fig. 125 ) with coarse punctures, moderate on I and becoming more abundant towards V. Legs: Apex of metafemora distinctly surpassing elytral apex. Ventral sulcus of protibiae distinct from near base to distal constriction. Protarsomeres I and II short, moderately wide; protarsomeres I-III with very small, apical denticle; metatarsi slender.

Dimensions. Male.Length 36–47 mm (Waterhouse 1900).

Geographical Distribution. Peru.

Material Examined. PERU: San Pablo , lectotype male, P. O. Simons col. ( BMNH) .

Types and Type Locality. This species was apparently described based on two syntype males from Peru. According to the website of the BMNH (2013), there is only one syntype deposited there. EHN examined this specimen and confirmed that it is the only specimen in that collection .

We designate as the lectotype of P. uniformis the specimen ( Figs. 124, 125 ) with the following labels ( Figs. 126, 127 ):

1. White with red circle [Printed]: Type 2. White with red circle [Printed]: Type 3. White with greenish circle [Printed]: Syntype 4. White [Handwritten]: San Pablo / Peru . 3000

metres / P. O. Simons 1900. by. 5. White [Handwritten]: Prionocalus uniformis

(Type) Waterh. 6. White [Handwritten]: upper timber line 7. Red and yellow [Printed; added by us]:

LECTOTYPE / Prionacalus unifromis

Waterhouse (1900) recorded that the type locality in Peru is “upper timber line, 3000 m, Nov.” However, as mentioned above, the lectotype has additional locality information. Thus, the type locality of P. uniformis is San Pablo ( Peru). There are several places named San Pablo in Peru, in several departments, and many of those places are situated at 3,000 m or more.

Remarks. Waterhouse (1900) noted: “It is most nearly allied to P. iphis, White , but has more ample elytra.” Actually, P. uniformis is much more similar to P. atys . The head, cephalic carinae, antennae, and palpi do not differ from those of the latter.

Figures

Figs. 121–127. Prionacalus species. 121) P. simonsi, syntype male, dorsal view; 122) P. simonsi, syntype male, ventral view; 123) P. simonsi, syntype male, labels; 124) P. uniformis, lectotype male, dorsal view; 125) P. uniformis, lectotype male, ventral view; 126–127) P. uniformis, lectotype male same, labels.