Procryptocerus mayri

Distribution based on Regional Taxon Lists
Neotropical Region: Brazil, Colombia, Costa Rica, Ecuador, Guatemala, Honduras, Mexico, Panama, Peru, Venezuela.

Nomenclature

 *  mayri. Procryptocerus mayri Forel, 1899c: 43 (footnote) (w.) COLOMBIA. See also: Kempf, 1951: 103. Senior synonym of reichenspergeri: Longino & Snelling, 2002: 19.
 * reichenspergeri. Paracryptocerus mayri st. reichenspergeri Santschi, 1921g: 98 (w.) BRAZIL. Combination in Procryptocerus: Kempf, 1951: 105. Junior synonym of mayri: Longino & Snelling, 2002: 19.

Worker
Longino and Snelling (2002) - (n = 1, Costa Rica): HW 1.678 (range 1.309–1.532, mean 1.465, n 5 4), HL 1.585, SL 1.0452, EL 0.388, MeL 2.405, MeW 1.233, PrW 0.743, PrL 0.670, PrS 0.479, PrT 1.149, MTL 1.392, MFL 1.535, MFW 0.462, PtL 0.599, PtW 0.531, PpW 0.617, PtH 0.434, AL 2.106, AW 1.750.

Lectotype: HW 1.951, HL 1.789, SL 1.203, EL 0.481, MeL 2.556, MeW 1.370, PrW 0.931, PrL 0.624, PrS 0.486, PrT 1.11, MTL 1.606, MFL 1.707, MFW 0.535, PtL 0.617, PtW 0.521, PpW 0.593, PtH 0.490, AL 2.037, AW 1.890.

Head subtriangular in outline, margin of vertex roughly straight; frontal carina extends onto clypeus, separated from and passing above torulus as a continuous flange; torulus trough lacking; face sculpture composed of high, sharp, well-spaced rugae; spaces between rugae smooth and shining; rugae often anastomosing to form polygons, with little longitudinal orientation (clathrate sculpture); this condition grades into increasing degrees of longitudinal orientation of rugae, especially anteriorly; rarely, rugae may be almost entirely longitudinal and subparallel; clypeus at level of antennal insertions bent ventrad; clypeus with prominent median longitudinal carina, flanked with 1–4 longitudinal carinae on each side; lateral carinae of variable strength; genae varying from longitudinally rugose to coarsely foveate/areolate; genal bridge longitudinally rugose; mandibles coarsely to weakly striate; eyes nearly symmetrically convex; scape flattened with thick lateral margin distally, becoming narrower and more terete basally, then flaring into a basal flange; broad, flat surface of scape finely areolate, outer lateral margin with coarse rugae; margin of vertex obtuse, weak, obsolete medially; vertex shiny with coarse, longitudinal striae radiating from occiput (of highly variable strength).

Mesonotal lobes short, acute, upturned; propodeal suture broadly, shallowly impressed, not breaking sculpture; anterolateral propodeal lobes absent; degree of margination between dorsal and lateral faces of propodeum variable; length of propodeal spines variable; propodeal spines vary from pointing straight back to being widely divergent; pronotum reticulate rugose, coarsely areolate anteriorly; in some specimens rugae somewhat longitudinally parallel on mesonotum; dorsal face of propodeum reticulate rugose to longitudinally striate; posterior face of propodeum meeting dorsal face at obtuse angle; posterior face of propodeum varies from completely smooth and shining with one or two transverse striae between bases of propodeal spines to mostly covered with coarse transverse striae; side of pronotum and katepisternum and side of propodeum with coarse longitudinal striae; becoming irregular on anepisternum and near dorsolateral pronotal margin; posterior surface of forefemur entirely smooth and shining; outer surface of metatibia coarsely rugose.

Ventral margin of petiole flat to weakly concave with low anterior right-angled tooth; anterodorsal face of petiole shiny with coarse to faint transverse striae (completely smooth in a few specimens); posterodorsal face areolate-foveate (weakly longitudinally rugose in some specimens); postpetiole with a long, gently sloping anterior face, a broad, rounded summit near the posterior margin, and a steeply sloping posterior face; ventral margin of postpetiole short with a prominent, acute anterior tooth; dorsum of postpetiole coarsely foveate-rugose (weakly longitudinally rugose in some specimens); first gastral tergite smooth and shining or occasionally with faint rugae anteriorly near petiolar insertion; first gastral sternite largely microreticulate, nearly smooth; second gastral tergite with faint, dense, granular sculpture.

Abundant flexuous setae on face, mesosomal dorsum (>20 on central area of promesonotum, not including those on lateral margins), petiole and sparse, whitish pubescence under the erect setae or lacking underlying pubescence; color shining black, legs black or occasionally red.

The type of P. mayri differs from Costa Rican material primarily by being larger. Also, the face is more uniformly striate, less clathrate. The legs are red.

Queen
Longino and Snelling (2002) - (n = 1, Costa Rica): HW 1.95, HL 1.78, SL 1.19, EL 0.47, MeL 2.88, MeW 1.69, MTL 1.59, PtL 0.72, PtW 0.58, PpW 0.71, PtH 0.55, AL 2.34, AW 2.04.

Characters of the head, legs, petiole, postpetiole, and gaster similar to worker.

Pronotum and anterior portion of mesoscutum coarsely areolate-foveate. On the posterior half of the mesoscutum and on the scutellum the interspaces become increasingly aligned as longitudinal rugae between the foveae. Dorsal face of propodeum with a variable extent of the median area vermiculate-longitudinally rugose, lateral margins areolate-foveate. Dorsal half of posterior face with 3–4 strong transverse carinae, ventral half smooth and shining. Pronotal sculpture extends onto sides, grading into wavy longitudinal carinae. Most of katepisternum and side of propodeum longitudinally carinate. Ventral half of anepisternum longitudinally carinate or smooth, dorsal half areolate-foveate, like pronotum.

Type Material
Longino and Snelling (2002) - Lectotype worker: Colombia (Landolt) (two workers examined). Kempf 1951:103–104, fig. 11, 28, 56, 68 (redescription of worker, designation of lectotype).

Neither of the two workers at MHNG bore a Kempf lectotype label. One worker was subsequently borrowed, detailed measurements were made, and a Lectotype label was added.