Hennobrimus, Conle, Oskar V., 2006

Conle, Oskar V., 2006, Hennobrimus hennemanni n. gen. n. sp., a remarkable new genus and species of the tribe Obrimini from the Philippine Islands. (Phasmatodea: Heteropterygidae: Obriminae: Obrimini), Zootaxa 1231, pp. 43-51 : 44-45

Hennobrimus n. gen.

Type species: Hennobrimus hennemanni n. sp., by present designation.

Etymology

The first part of the name is dedicated to Frank H. Hennemann (Kaiserslautern, Germany), the second part refers to the generic position of the genus within the tribe Obrimini and relation to Obrimus Stål, 1875 .

Diagnosis

Female & Male: Medium sized to large Obrimini (body length: female 90.1 mm, males 47.0–51.0 mm), body stout and robust for the tribe; apterous; head at least as wide as long, slightly wider than pronotum, bearing small occipital spines as well as lateral and medial coronals; vertex strongly convex and conically elevated; scapus rectangular and about as long as third segment of antennae; pronotum transverse, slightly wider than long, bearing a pair of posterior and anterior pronotals; mesonotum bearing a pair of blunt posterior mesonotals connected by a transverse carina and a pair of small anterior mesonotals and a few tubercles; metanotum slightly wider than long, bearing a pair of blunt posterior metanotals connected by a transverse carina; ventral surface of thorax only bearing a few minute tubercles; metasternal pseudoforamina absent; ventral and dorsal surface of abdomen smooth and partly shiny; legs stout and robust, trapezoid in cross section; all carinae on femora and tibia indistinct, bearing a few minute spines; profemora basally only very indistinctly curved; prominent spines on ventral surface of femora and medioventral carina absent; basitarsus 3x longer than second tarsomere.

Females: Antennae reaching to posterior margin of tergit III; mesonotum 1,3x longer than wide; longitudinal median carina reaching from anterior margin of mesonotum to anal segment; ovipositor typical for the tribe, straight, horizontal, beak­like.

Males: Antennae very robust, reaching to apex of abdomen; mesonotum 2x longer than wide, posterior mesonotals and posterior metanotals more prominent than in females; poculum simple, large & bulbous, reaching to the posterior margin of the anal segment; cerci hardly projecting over anal segment.

Differentiation

The indistinct but composite posterior mesonotals and metanotals place Hennobrimus n. gen. in Obrimini . The lack of metasternal pseudoforamina shows relation to Sungaya Zompro, 1996 , Aretaon Rehn & Rehn, 1939 and Trachyaretaon Rehn & Rehn, 1939 . Apart from these genera the general body shape also resembles the other members of Obrimini , Obrimus Stål, 1875 , Euobrimus Rehn & Rehn, 1939 and Brasidas Rehn & Rehn, 1939 , but these possess distinct pseudoforamina on the metasternum. From all these genera Hennobrimus n. gen. differs by: the broader body; conspicuously broadened, slightly transverse head which is broader than the pronotum (longer than wide in all other genera); relatively shorter mesothorax, shiny body surface (males in particular) as well as the blunt posterior mesonotals and metanotals and distinctly transverse abdominal segments of males.

From Sungaya Zompro, 1996 , with which it has the reduced body armament and long basitarsi in common, it differs by: the broader body and more robust legs; slightly trapezoidal cross section of the legs, and less prominent carinae of the femora and tibiae.

From Aretaon Rehn & Rehn, 1939 and Trachyaretaon Rehn & Rehn, 1939 it differs by: the more robust body and legs; smaller and blunt posterior pronotals and anterior mesonotals; less spiny body and legs; entirely smooth abdomen; trapezoidal cross­section of the legs; less prominent carinae of the femora and tibiae, and longer basitarsi of both sexes. ɗɗ furthermore differ by the thicker antennae and the strongly shiny dorsal surface of the abdomen.

Distribution

Philippines: Mindanao Island & Leyte Island (Mt. Balocaue)

Species included

Hennobrimus hennemanni n. sp.