Grigiotermes, MATHEWS, 1977: 94 - 96

Bourguignon, Thomas, Scheffrahn, Rudolf H., Nagy, Zoltán Tamás, Sonet, Gontran, Host, Benoît & Roisin, Yves, 2016, Towards a revision of the Neotropical soldierless termites (Isoptera: Termitidae): redescription of the genus Grigiotermes Mathews and description of five new genera, Zoological Journal of the Linnean Society 176 (1), pp. 15-35 : 18-19

publication ID	https://doi.org/ 10.1111/zoj.12305
DOI	https://doi.org/10.5281/zenodo.10529951
persistent identifier	https://treatment.plazi.org/id/03B687D2-F522-5C0F-50B1-855EA7DB7B15
treatment provided by	Carolina
scientific name	Grigiotermes
status

Treatment

GRIGIOTERMES MATHEWS, 1977: 94–96 View in CoL

Type species, by original designation: Grigiotermes metoecus Mathews, 1977 , herein considered a junior synonym of Anoplotermes hageni Snyder & Emerson, 1949 .

Description

Worker: Large, head width over 0.9 mm. Abdomen with subconical distal half and elongated digestive tract. Head pale yellow, rounded, fully covered with various numbers of tiny setae and between 50 and 100 long bristles. Fontanelle small, almost indistinct. Fore tibia long and slender. Digestive tract as in Figure 8A View Figure 8 . Enteric valve inserted into a short extension of the paunch, with welldeveloped armature composed of six spiny plates. Anterior portion of enteric valve consists of six ovoid pads composed of about 100 scale-like lobes. Mesenteric junction forming a small ball overlapping the proctodeum, slightly elongated to form a short, distinct mixed segment.

Table 2. Measurements (in mm) of 24 workers, and five male and five female imagos from five colonies of Grigiotermes hageni comb. nov. ( Grigiotermes metoecus , from Mathews, 1977)

Foregut with very wide P1 (first protocol segment) through which food bolus is generally visible as a serpentine mass.

Imago: Sclerotized body parts dark brown, covered by thousands of tiny setae. Head covered by about 100 scattered long bristles. Eyes and ocelli large. Fontanelle fairly small to medium size, situated at the level of eyes. Pronotum elongated, covered by dozens of long bristles. Posterior margins of meso- and metanotum slightly emarginated, with strongly rounded angles.

Diagnosis

Grigiotermes is similar to Patawatermes from which it can be distinguished by its enteric valve adorned with six spiny sclerotized plates as in Figures 1A View Figure 1 , 7A View Figure 7 . Grigiotermes is distinguishable from other genera of South American soldierless termites by its workers with widened P 1 in which the food bolus has a visible serpentine path.

GRIGIOTERMES HAGENI (SNYDER & EMERSON, 1949)