Chauliogryllacris Rentz, 1123

Rentz, Dcf, Su, You Ning & Béthoux, Olivier, 2018, A new Raspy Cricket from the northern Australian Rainforests (Orthoptera: Gryllacrididae), Zootaxa 4514 (1), pp. 41-52 : 43

Chauliogryllacris Rentz

Chauliogryllacris Rentz, Invertebrate Taxonomy 1990:1123 . Type species: Chauliogryllacris grahami Rentz , by original designation.

Chauliogryllacris gryllacridids are characterised by their large size and especially large heads ( Fig. 2A ). Both sexes are fully winged as adults. When disturbed, adults take short flights. Both sexes bear distinctive characters especially regarding their genitalia. The external male gentialia are slightly concealed beneath a dome-like structure of the tenth tergite that has been christened as a scrotum ( Figs. 4B, C, E ) because it houses the testes. There are no heavily sclerotised concealed male genitalia known for gryllacridids. However, we have discovered lightly sclerotised papillae or tubercles on the median fleshy lobes of the species described below ( Fig. 4D ).

Figures

FIGURE 2. Chauliogryllacris acaropenates Rentz, Su, Béthoux, sp. nov. A, Adult male with mandibles agape. B, male left hind tibia. C, male right fore tibia. D, female left hind femur. E, male ventral view thorax and first abdominal segments.

FIGURE 4. Chauliogryllacris acaropenates Rentz, Su, Béthoux, sp. nov., A, lateral view left side male abdomen. Note truncated projection from subgenital plate. B, male tip of abdomen, dorsal view. Note protruding genital hooks and prongs of subgenital plate and truncated tenth tergite with surface rugulose. C, male subgenital plate ventral view. D, soft portion of male genitalia with stout setae. E, male, tip of abdomen, subgenital plate removed revealing genital hooks. F, female subgenital plate, ventral view.