266 
(Gvlle^hal) , Ostrogolhia ;id littJi a lacus ^^ aet- 
teri (Zettfrstedt) Bahusia acl Trollhii Ltaii (C. 
}l. BoHE^»iA^"), S(?ania (Fatxe>-'. 
S^atura singiilaris ob capiit bievissinium , postice 
valde excavatnm, antice paruni conve\Jimy abdomen 
Jcite 1. ex orbiciilari ovalnm, depressiim , deflfxnm, 
alasqutj breves, abdom^^n yix C8quante>, apice obtiT5H>, 
— Tota nigra nitida, pnncfalata, crebre piibescens. 
Veitex maxiiiie declivis, subperpendicularis . Iseviiis- 
culus, maciila media triangiilari prasserlim nitida ii- 
neisque lateralibiis concoloribus latis, marginis postici 
setis paucis, brevibiis, Epistoma riigoso-scabrosnm , 
descendens, mar^ine apicali subcoarctato, anguste re- 
flexo. Partes epistoinatis laterales snico tenui ab area 
intermedia distinctae, latae, vibrissis 5 1. 6 intlexis nie- 
diocribus 01'natcE. Oculi magni exsei ti , oblongiiisculi. 
Antennce inciimbentes, breves, fnsco-testaceie , basi ful- 
vescente, seta tenui, dnplara articuli terfii longitndi- 
nem aeqiiante, 6-radiata. Sefae in dorso thoiacis nulla?. 
in pleuris ante ätas paucae, in scutello magno , piano, 
quadrato ordinariae qiiatuor. Srgmentura abdominis 
primum, ut solet , breve; secundum , tertium et quar- 
tum agqualia; quintura paullo longiu^. Pedes anlici 
to ti nigri feraoribus incrassatis, posleriorura tarsis 
fla vo-testaceis , articulo ultimo nigro-fusco. Alse late 
ovatse, postice obtuse rotundata?, lobulafae, lobulo 
apice acuto, basi alarum vittaque costali Aiscis. Seg- 
raentura coslae secundum et tertium jequalia. 2S'ervus 
transversus ordinaiius poue medium al« versus mar- 
ginem interiorera obiique posilus, puncto raajori fu- 
sco notatus. 
2. D. margijiella Fall, "nigra , antennis tar>isque 
luteis; alis margine puncto apicis, nervocjiie Irans- 
verso nigris." Fall. Hydromvz. 7 [Psilopa), 
''In palude ad Abusa Scanice, J. AV. Zet- 
TEKSTFDT* Fall. 1. C. 
Soii oculatissimo indagatori cognita, qui b"tteris 
testatur D. TJiar^inellam , quoad capitis Ibrmam , adeo 
similem esse D. incurvte, ut eandem, sed in minuliera 
redactam. fere putarcs. Qua?dam tamen restant ex- 
pHcanda, ad ^pcciei notioncm rite canstitucndam ne- 
