204 CHIRONOMID.E. 



Corpus elongatum, minimum. Caput rotundum, antice depressum. 

 Oculi subrotundi, jntus paullulum einarginati. Proboscis brevissima. 

 Palpi 4-articulati, incurvi ; articuli primus, secundus, et tertius aequa- 

 les, cylindrici ; quartus fere triplo longior. Antennae porrectae, fili- 

 formes. Thorax ovatus, convexus, antice subproductus. Scutellum 

 parvum, rotundum. Alae lanceolatae, nudae, deflexae ; costa brevis- 

 sima, in clavae formam dilatata. Abdomen cylindricum, segmentis 

 octo. Pedes longi ; tibiae posticae apice incrassatas, supra unicalca- 

 ratae, subtus bispinosaa. Mas. Antennae 9-articulatae, plumosae ; 

 articuli octo ovati ; nonus major, clavatus, apice pilis coronatus. 

 Alarum costa circiter ad quartam partem marginis antici pertinens. 

 Abdomen apice obtusum. Fcem. Antennae 5-articulatac, pilosae ; 

 articuli quatuor ovati ; quintus elongatus, pilis brevioribus coronatus 

 quam maris. Alarum costa ad medium marginis antici pertiuens. 

 Body elongated, very small. Head round, flat above. Eyes nearly 

 round, slightly emarginated on the inner side. Proboscis very short. 

 Palpi four-jointed, curved downward ; first, second, and third joints 

 cylindrical, equally long ; fourth almost as long as the other three. 

 Antennae porrect, filiform, standing on a thick conical base. Thorax 

 oval, convex, slightly elongated in front. Scutellum small, round. 

 Metathorax elevated, forming an acute angle hind ward. Pectus very 

 convex between the anterior legs. Wings lanceolate, bare, deflexed ; 

 costa clavate, very short. Halteres large. Abdomen cylindrical, with 

 eight segments. Legs long; hind tibiae incrassated at the tips, with 

 a long spur on the upper side, and two short stout spines beneath. 

 Male. Antennae nine-jointed, plumose ; joints from the first to the 

 eighth oval ; ninth clavate, very large, with a circlet of hairs at the 

 tip ; costa one-fourth of the length of the wing. Abdomen obtuse at 

 the tip. Fern. Antennae five-jointed, pilose; joints from the first to 

 the fourth oval ; fifth elongated, its circlet of hairs shorter than those 

 of the male. Abdomen acuminated at the tip. 



1. minutissima, Meig. Zvv. vii. 8. 137 (1838). Mas, minuia, 

 Winn. Ent. Zeit. vii. 13. atra? Winn. Ent. Zeit. xiii. 50. Teem, 

 cehripes ? Winn. Ent. Zeit. xiii. 50. Mas, nigra, proboscide, palpis, 

 antennis halteribusque albido-fiavis, antennis apice fuscescentibus, alis 

 flavescentibus aut lacteis, clavo obscure flavo, abdomine viridi-albo 

 apice fusco, pedibus fuscis, femoribus albis apice fuscis ; Foem. flava, 

 antennis apice fuscis, thorace vittis tribus nigris, scutello et metanoto 

 nigris, pectore nigro-fusco, alis albidis, halteribus albis, abdomine nigro 

 incisuris albidis, ventre sordide flavo apice nigro, pedibus albidis, arti- 

 culis apice obscuris. Long. \ ^ ; alar, -i ^ lin. 



Male. Head and thorax black. Proboscis, palpi, antennae, and hal- 

 teres whitish-yellow ; the last joints of the antennae brownish. AViugs 

 yellowish ; the clavus dark dingy yellow. Abdomen greenish-white ; 

 the last three segments, or only the tip, brown. Legs brown ; femora 

 white, with brown tips. Var. Pleurae dingy yellow. Wings with milk- 

 white gloss. Abdomen dark brown. Fein. Head black. Palpi yellow. 



