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A NEW CHALCID PARASITE OF EUTHYRRHINUS MEDITABUNDUS. 



By Alan P. Dodd. 

 Chalcis euthyrrhini, sp. nov. 

 $. — Length, 5-7 mm. 



Head and thorax black ; abdomen bright orange-red ; tegulae red ; antennae 

 clear orange-red, the two apical club joints darker, the scape darker and varying to 

 black ; posterior legs, including the coxae, clear orange-red ; anterior and intermediate 

 coxae black, their femora and tibiae more or less brown or fuscous, their tarsi red. 



Head, viewed from above, transverse, the occiput concave and (from lateral aspect) 

 declivous, immargined ; frons gently yet distinctlv convex from eye to eye, viewed 

 from in front distinctly wider than deep ; antenna! scrobes long, narrow, reaching to 

 .and hardly containing the median ocellus at base, divided by a wedge-shaped elevation 

 that tapers to a point at half their length ; eyes large, bare ; ocelli large, in a slightly 

 curved line, the lateral pair separated from the median ocellus by less than their own 

 diameter ; cheeks broad ; surface with dense uniform umbilicate punctures. Antennae 

 separated at base, inserted slightly above a line drawn across ventral end of the eyes, 

 13-jointed, counting the club as 3-jointed ; scape slender, as long as the next four joints 

 combined ; pedicel not nmch longer than its greatest width ; ring-joint large, nar- 

 rowed at base ; funicle 1 twice as long as its greatest width, 2 slightly longer than 

 wide, 7 a Httle wider than long ; club conical, fully twice as long as its greatest width, 

 the first suture distinct and slightly before the middle, the second suture faint. 

 Thorax normal, sculptured like the head, the sculpture very coarse, without con- 

 spicuous pubescence ; pronotum large ; its posterior margin deeply concave, the scutum 

 thus much produced at meson anteriorly ; anterior margin of scutum with dense 

 scaly sculpture, rising sharply from the pronotum ; scutellum hardly longer than its 

 greatest width, its apical plate rounded ; axillae rather widely separated ; propodeon 

 almost perpendicular in relation to the scutellum, moderately long, coarsely rugose 

 and also finely shagreened, with a shallow median channel, laterally and near anterior 

 margin with a distinct subacute tooth or projection on either side ; pleurae sculptured 

 like the rest of the thorax, the mesopleural depression longitudinally striate. Fore- 

 wings ample, normal, stained yellowish, venation black ; marginal vein three times 

 as long as the stigmal, which is as long as the post-marginal. Abdomen, viewed from 

 above, pointed ovate, fully twice as long as its greatest width, the valves of the 

 ovipositor slightly exserted ; gently convex above and beneath, no longer than the 

 thorax ; segment 2 (first body segment) almost as long as the others united, 3 longer 

 than 4, 5 and 6 subequal and shortest, 7 fully as long as 4-6 combined, 8 rather short 

 and with a median carina ; 2 smooth and polished ; 3-6 smooth, except for yellowish 

 pubescence against their anterior margins, no setae at meson, the free area broader 

 on 3, narrower on 6 ; 7 with rather dense shallow punctures and vellow pubescence ; 

 8 pubescent. Legs normal ; teeth on hind femora varying from eight to eleven, 

 counting from base, 1 largest, 2 usually small and also usually the apical one or two. 

 cJ.— Similar to the female, except that the pedicel is fuscous, also all the club and 

 preceding joint ; antennae as in the female, but the pedicel is smaller, the apical 

 funicle joint is as long as wide, and the club is somewhat shorter ; abdominal segments 

 5 and 6 comparatively longer, 7 shorter, the abdomen blunt at apex. 

 North Queensland : Cairns district and Townsville. 



Described from two females and one male received from Mr. G. F. Hill, and a large 



number of females and one male collected by the author in January, March, May, 



September, October and November. Mr. Hill's specimens were "bred from the 



Curculionid beetle, Euthyrrhinits meditahtindus. Of the author's material, several 



(2416) E 2 



