416 ENTOMOLOGICAL NEWS. [Nov., '14 



A new Genus of Platygasteridae from Australia 



(Hymen.). 



By ALAN P. DODD, Nelson, via Cairns, Queensland, Australia. 



Trichacoides nov. gen. 



9 (?). Head rather wide, a little wider than the thorax; 

 eyes moderately large, bare ; ocelli rather close together, very 

 far distant from the eye margins. Antennae lO-jointed, scape 

 rather long, pedicel slender ; first funicle joint much narrower 

 and shorter than the pedicel ; second distinctly longer and 

 wider than the first ; the others gradually widening towards 

 the apex, all distinctly longer than wide. Thorax twice as 

 long as wide ; pronotum visible from above on the sides only ; 

 mesonotum longer than wide ; parapsidal furrows distinct, al- 

 most joining at the posterior edge of the mesonotum; scutellum 

 not much lengthened, a little longer than wide, rounded pos- 

 teriorly, raised from the mesonotum, convex, covered with 

 dense, rather short, sharp spines. Forewings reaching apex 

 of abdomen ; broad ; veinless. Abdomen as long as the head 

 and thorax combined ; as wide as the thorax ; fusiform ; first 

 segment a little wider than long, second segment equal to one- 

 half the abdominal length, distinctly longer than wide. Legs 

 moderate ; tarsi 5-jointed. 



A genus distinguished by the peculiar, thorny scutellum. 



Type. Trichacoides sciitellaris described herewith. 



Trichacoides scutellaris sp. nov. 



Female (?). Length, 2.20 mm. Shining black; legs (including 

 coxae) and first six antennal joints golden yellow. 



Head and mesonotum with fine polygonal scaly sculpture. Abdomen 

 with first and base of second segment striate ; rest of abdomen smooth. 

 Forewings hyaline; marginal cilia rather short; discal cilia moderately 

 coarse and dense. 



(From i specimen, 2-3 inch objective, I inch optic, Bausch 

 and Lomb.) 



Habitat. North Queensland (Nelson, near Cairns). De- 

 scribed from one 9 (?) caught by sweeping grass along 

 streamlet in forest, August 7, 1913 (A. P. Dodd). 



Type. In the South Australian Museum, a 9 (?) tag- 

 mounted plus a slide bearing antennae and forewings. 



