AUSTSALI.IN HTMKNOPTEHA CII.ILCI DOIDEA. XII.~(iIRAI7LT. 289 



closely, finely reticiilateil. l'roi>loiir;T closi'ly. fiiioly imm-tvii-oil, iiiore or less striated. .Meta]jleurie 

 finely, closely punctured; there are, on tlie last fenuir, aliout six irregular teeth, the hasal tliree 

 larger and more ividely separated; they are as h.im as the coxte, wliicli are closely and nnire 

 finely ]iunetured than the femora. 



The male is similar. As is usual willi nu'tallic species, tlie aninnnt of the hrassv and 

 rufous tints varies. Tlie fore tibia) may be testaceous at the base and ape.N, as well as below. 

 Probably the femoral teeth vary in siz(^ and number, as 1 have noticed to be the case with 

 other species. The apical joints nf the antennae fcuin a imt very clearly defined idnb. The 

 sides of the mesonotum are lioundcd by a suinutli turmu, inside of which is a Hatter one, 

 double its width, which ajjain is lundered on tlic inner siile by an irref,ndarly creiudated 

 furrow. The central [lart is finely ruf^use, divided into two ahuost e(|u.il parts by a narrii'\ 

 smooth furrow; the apical jiart is depressed in the middle. 



Except for the larye ahir cloud, this species does init diffi r frdrn typical I'dihiiniiiii. 

 wliich have lonj; been known to live in the egg-cases of Mmilis. 



4. PODAGRION BENEFICIUM Cirault. Female ; luah'. 



Length, 2.."! mm.; with (ivipositm-, '>:!'' nan. 



Dark bright metallic green with teneous and bright bluish tinges, the fa<'e brighter 

 green; exserted portion of ovipositor black; antenuiu black, excepting the dark metallic scape 

 which is rufous laterad and ventrad but sometimes wliully hlaik or nietallie; tniehanters 

 knees, tibiie and tarsi rufous, the coxa^ and femora iinirnldrons \. ith the body, the caudal 

 tibia; blackish for distal four fifths; distal tarsal .joint black, the I'osterior tarsi often pallid 

 yellowish. Oral area black. Wings hyaline, the veuation dusky. Teeth of jiosterior femora 

 black; immediate base of abdnmen uuu-e or less slightly rufous esjiecially ventrad at ]>r(ixinuil 

 half. Eyes and ocelli concolorons, garnet. Mandibles blac-k at tip. I'.iight rnet.allic blue 

 especially cm the abdomen ami It^gs. 



Lateral ncelli their own diameter from the eye margins. Heail all over and dorsal 

 thorax densely polygonally siailptnred or jiuuctate, the jiunctures nmderate to fine, the 

 abdomen, coxa^ and femoi-.a pdlygunally retieulatecl, the sides of the pro ami mesothorax 

 more roughly so. (leneral sutun^ fine but distinct. Head, antenna' and thorax bearing short, 

 greyish, nu)derate pnl»cscence; also on the piosterior segments of the abdonu'n and the legs. 

 Posterior femora with six large teeth and a seventh minute con' pist ju'oxinmd of the filth 

 tooth. Metathorax with a eonspicnous V-shaped nicclian larina whose apex is at the meson 

 cephalad ; the large area cephalo laterad of each branch of the carina is densely punctate 

 nearly like the scutellum while the mesal area included by the two branches of the carina is 

 the same but also traversed by an irregular, n.'irrow median carina which sends off obli(pie 

 shoots making the area rugose. Laterad, there are no carina^ excepting a thin hmgitudinal 

 one a slight di^tame l.iterad of the spiraide. Th(> luetathoracic spiracle is elliptical and 

 slightly curved at one end, thus subreniform. A fovea is Just caudad of it. 



Marginal vein of foi'e \\'iug long Vint shorter thaji the snbuuirgimil, the jiostmargin.al 

 vein short but longer than the stignuil. .\uteuna' IM jiiinteil, with one ring joint which is 

 distinct; funicle juints slmrteuing distad. the distal two distimtly wider th.an long, the first 

 two sulequal, a, f(uu-tli longer than wide, each slightly longer than the pedicel; joint ;i 

 quadrate; joints 4 and .I subequal, slightly wider than hmg while joints fi and 7 are subeqnal, 

 each slightly shorter than joint .5; club long, ovate, much wider than the funicde. its three 

 joints subequal in length and as long as the ]n-oximal joint of the funicle. Mandibles dentate. 



The mall' is the siime but the funiele joints are all distinctly longer, the club not wider 

 than the funicle or hardly so, its distal .joint short; antenna lighter distad and the abdomen 

 differs as it should for this sex in this genus. The proxini.-il funicle joint is nearly twice longer 

 than wide, longer than the si'cond .joint and iimie of the joints iif the funiele are wider th:m 

 long. 



