Tyrtaeus guadeloupensis Dajoz, 1981: 227

Hopp, Katie J. & Ivie, Michael A., 2008, First Report ofTyrtaeus rufusChampion andTyrtaeus dobsoniHinton (Tenebrionidae: Diaperinae: Anopidiina) from Florida, The Coleopterists Bulletin (Basel, Switzerland) 62 (3), pp. 427-436 : 427-436

Tyrtaeus guadeloupensis Dajoz, 1981: 227 . NEW SYNONYMY. [Although the

types of T. guadeloupensis Dajoz were not available, his description,

illustrations, and a long topotypic series allow us to be certain of the

synonymy.]

Diagnosis. Distinguished from all described congeners by the combination of the antennal club of 3 fused segments (i.e., there are 2 pairs of white pits, plus the apical series (Fig. 3), which at high magnification can be seen to contain stellate sensoria), with 6 (may appear to be 5) free segments before the club; elongate body form ( Fig. 1 ); glossy rufo-testaceous color; dorsal surface with short, sparse and inconspicuous setae; punctures of head and prothorax usually separated by two to four or more puncture diameters; lateral edges of pronotum sinuately narrowed posteriorly and irregularly crenulate; elytra nearly glabrous with moderate punctures forming well-defined and separated striae; triangular labrum; lack of male setal patches on the first 2 ventrites; and unmodified ventrites of the female.

Description. Length 1.10–2.25 mm. Elongate, somewhat flattened, surface finely punctate, glossy, yellowish-brown to dark reddish brown ( Fig. 1 ). Head finely punctate; eye round, not at all emarginate. Antenna (Fig. 3) short, 7- segmented, reaching anterior third of thorax; finely to moderately setose, last antennomere with stellate sensoria (visible at $ 50 X magnification, appearing as 430 3–4. Antennae. 3) Tyrtaeus rufus Champion ; 4) Tyrtaeus dobsoni Hinton.

minute circular white pits at lower magnification); scape and pedicel broader than antennomeres 3–6; scape quadrate; pedicel slightly transverse; antennomeres 3–6 gradually widening; antennomere 3 marginally longer than broad, 4–6 subquadrate, subequal; antennomere 7 triannulate, widened to form distinct club, as long as antennomeres 3–6 combined. Anterior margin of clypeus truncate; clypeo-frontal suture present; clypeolabral membrane visible; labrum triangular, giving the head a triangular shape from above; galea expanded, somewhat securiform at apex; terminal segment of maxillary palpus acuminate; palpi yellowish-brown. Pronotum short, transversely convex, lateral margins rounded, slightly crenulate toward base, sinuate, narrowed before base, posterior angles acute; pronotal surface finely punctate with several coarser impressions on each side near the base. Scutellum small, triangular, flat. Elytra entirely covering metathoracic wings, somewhat flattened on the disk; elytra subequal in width to pronotum, parallel in their anterior half, humeri angular; elytra with rows of punctures which diminish towards the apices; elytral interstices broad, flat, smooth; epipleuron narrowing abruptly at fifth abdominal ventrite. Legs and tarsi yellowish-brown; tarsal formula 4-4-4, tarsi sparsely pilose beneath. Ventral surface finely punctate; abdomen with visible membrane along hind margin of visible ventrites 3 and 4; ventrite 5 transversely depressed at the apex in males.

Distribution. Florida, Cuba, Grand Cayman, Guadeloupe, Dominica, Mexico, Guatemala, Costa Rica, Panama, Colombia, Venezuela.

Biology. This species is most commonly taken under bark, but shows amazingly catholic tastes in this regard, having been taken under bark of Terminalia (Combretaceae) , Bursera (Burseraceae) , Ceiba and Ochroma (Bombacaceae) , and Rhizophora (Rhizophoraceae) . It has also been taken in association with imported orchids, under rocks, and among dead leaves.

Material Examined. Tyrtaeus rufus Champion. LECTOTYPE here designated: specimen of undetermined sex in BMNH mounted on card. Round blue-ringed label ‘‘SYN-; TYPE / S. Geronimo,; Guatemala.; Champion./ Tyrtaeus ; rufus Ch. / Sp. figured. / Tr. Ent. Soc. L.; 1913; det. Champion./ LECTOTYPE; Tyrtaeus rufus ; Champion; designated by; Hopp & Ivie ’08.’’ PARALECTOTYPES here designated, each with a label reading: ‘‘ PARALECTOTYPE; Tyrtaeus rufus ; Champion; designated by; Hopp & Ivie ’08.’’ 1 – Round blue-ringed syntype label and red-ringed type label; ‘‘SYN-; TYPE / TYPE/ S. Geronimo,; Guatemala.; Champion./ Tyrtaeus ; rufus Ch. / Tr. Ent. Soc. L.; 1913; det. Champion.’’ [ BMNH]. 1 – Round blue-ringed syntype label; ‘‘SYN-; TYPE/ El Jicaro,; Vera Paz.; Champion./ 1911-403./ Tyrtaeus ; rufus Ch. / Tr. Ent. Soc. L.; 1913.; det. Champion.’’ [ BMNH]. 2 – Round blue-ringed syntype label; ‘‘SYN-; TYPE/ El Jicaro,; Vera Paz.; Champion./ 1911-403./ ♀ / Tyrtaeus ; rufus Ch. / Tr. Ent. Soc. L.; 1913.; det. Champion.’’ [ BMNH]. 1 – Round blue-ringed syntype label; ‘‘SYN-; TYPE/ El Jicaro,; Vera Paz.; Champion./ Tyrtaeus ; rufus Ch. ’’ [ NMNH]. 1 – Round blue-ringed label ‘‘SYN-; TYPE /Oi/ Tamahu,; Vera Paz.; Champion./ 1911-403./ Tyrtaeus ; rufus Ch. / Tr. Ent. Soc. L.; 1913.; det. Champion./ Placed presently; in Colydiidae ; all tarsi apparently; 4-jointed. Careful; examination required’’ [ BMNH]. In spite of labels to the contrary added at the National Museum of Natural History in Washington, three specimens cited by Champion from Cuba (data below in Material Examined) are not eligible to be designated as paralectotypes, because he specifically excluded them from the type series with the statement ‘‘Described from 7 specimens from Guatemala.’’ The Cuban specimens were mentioned as ‘‘others.’’

Material examined in addition to types: FLORIDA: Collier Co., Everglades City, 3 Jan. 1977, W. E. Steiner, under bark of Rhizophora (3 NMNH). CUBA: Pinar del Rio, Sierra del Rosario, ca. 15 km S. Cinco Pesos Rangel, 29 JUNE 1990, 420 m, M. A. Ivie (1 MAIC); Cayamas, Baker (1 NMNH); Cayamas, 8.6, E. A. Schwarz, in Ceiba bark, Oi, [this specimen bears a red label with the text ‘‘ Paratype; 21518; U.S. N.M.’’ followed by a label with ‘‘ Tyrtaeus ; rufus Ch. ’’ but is not eligible for paralectotype status because the Cuban specimens were excluded from the types series by Champion, see above] (on red paper) PARATYPE, 21518, U.S. N.M. (1 NMNH); and Cayamas, 8.6, Cuba, E. A. Schwarz, in Ceiba bark, 872 (1 NMNH). CAYMAN ISLANDS: Grand Cayman, The Mountain, 2 km SW of Old Man Bay, 19 ° 209N, 81 ° 129W; 18 February 1993 / Under bark of rotten trunk of Bursera simarouba ; F. J. Burton, W. E. Steiner & J. M. Swearingen (1 NMNH); Grand Cayman, Salina Reserve , 19 ° 219N, 81 ° 089W; 17 February 1993, under bark of rotten trunk of Bursera simarouba, F. J. Burton, W. E. Steiner & J. M. Swearingen (1 NMNH); Grand Cayman, Prospect; 432 19 ° 179N, 81 ° 209W; 25 February 1993, W. E. Steiner & J. M. Swearingen, under bark of dead standing Terminalia catappa near beach (1 NMNH). GUADE- LOUPE: Basse Terre rd to Soufriere, 748 m, 16 ° 01.8830N, 61 ° 40,8549W, 23 AUG 2005, M. A. Ivie, under bark of lg dead log (69 WIBF). DOMINICA: 3 mi. E. of Pont Casse; VII-16-1964, T. J. Spilman (7 NMNH). MEXICO: Cordoba; Mex. Ver., Dr. A. Fenyes (1 CASC); Laredo, Tex, ex. Mexico, X-26-1945, with orchids, #45-18921 (1 NMNH). COSTA RICA: Puntarenas, Est. La Leona, Penn. Osa en pie Balsa Muerto, 25 JUN 2001, W. Porras (1 INBIO, 4 MAIC); San Jose, XI-18- 55, B. Malkin (1 MAIC). PANAMA: Cerro Campana, 2,9009, VIII.2.1970, J. M. Campbell (2 CNCI); C.Z. 5.0–8.0 mi. NW Gamboa, Pipeline Rd., 28 May 72, T. L. and L. J. Erwin, expedition # 29 in notebook #1 (3 NMNH); Portobelo, 1-26- 70, Island P3, D. Simberloff, P3-13 (1 MCZC); Cocle, El Valle, 829 m, 26 May 1983, W. E. Steiner, under bark of large log in forest (1 NMNH); Paraiso CZ, Mar 4, [19]11, E. A. Schwarz (1 NMNH). COLOMBIA: Cundinamarca, Finca Bella Vista nr. Sasaima, 7-IV-1965, P. R. Craig, collected under rocks and leaves on ground (1 CASC); Buenaventura, XI-4-1950, E. S. Ross (1 CASC). VENEZUELA: Cuyagua, litoral (Edo. Aragua), Bordón leg., 1 XII 1979 (6 on single card MIZA).

Remarks. Tyrtaeus rufus was originally described from Guatemala and Cuba, and except for a record from Guadeloupe by Dajoz (1981), who redescribed it as Tyrtaeus guadeloupensis , inclusion in a key by Hinton (1947) and a few lists, it has not had any notice in the literature. It was taken in Florida under bark of red mangrove ( Rhizophora mangle L., Rhizophoraceae ) in January 1977, and other than an interception at the Texas/ Mexico border in 1945, this is the only record of the species from the United States. Tyrtaeus rufus has also been taken in Mexico, Costa Rica, Panama, Colombia, Venezuela, Grand Cayman, and Dominica.

Figures

Figs. 1–2. Habiti photos. 1) Tyrtaeus rufus Champion; 2) Tyrtaeus dobsoni Hinton. Figs.