DOLICHODERUS (hYPOCLINEa) CEAWLEYI N.SP. 201 



Dolichoderus (Hypoclinea) crawleyi n.sp., a species of Ant new to 

 Science ; with a few notes on tlie Genus. 



By H. DONISTHOEPE, F.Z.S., F.E.S. 



g Black, shining, sides of clypeus, inner borders and base of mandibles, club 

 of antennce, base of joint of funiculus, and apex and base of scape, anterior border, 

 and posterior border narrowly, of pronotuvi, base of epinotum narrowly, tarsi, apex 

 of tibia and trochanters, yelloiv. Antennce, legs, andivhole body furnished with pale 

 yellow outstanding hairs ; gaster with ivhite decumbent pubescence. 



Head rugose and wrinkled, together with mandibles, triangular ; clypeus con- 

 vex, coarsely wrinkled ; frontal area distinct ; mandibles triangular, with large 

 widely separated punctures, and many teeth on terminal border ; antennce with 

 scape thickened towards apex ; eyes high on sides of head. Thorax rugosely 

 wrinkled ; pronotum unarmed, flat on disc, rounded at sides ; iiiesonotum higher 

 than pronotum ; epinotum unarmed, rounded, more rugosely wrinkled and pitted 

 than rest of thorax, with declivity somewhat scooped out and much smoother. 

 Scale of pedicel viewed from side conical, triangular, rugosely punctured ; gaster 

 short broad oval, finely punctured. Long. 4-5-4-8mm. 



? Mandibles, clypeus, cheeks, mesonotuvi, seutellum, and metanotum pale 

 yellowish white ; a longitudinal stripe on centre of mesonotum and on the parapsidal 

 furrows brown ; gaster and rest of body yelloivish broivn ; pilosity and pubescence as 

 in $ . {Probably immature.) 



Head shape and puncturation as in g . Thorax smoother ; mesonotum high 

 and convex ; seutellum very prominent and raised ; epinotum rounded, convex, 

 with white decumbent pubescence.' Scale shape as in g , but not nearly so rugose ; 

 gaster smooth, short broad oval, but less round than in 5 . Long. 6mm. 



Described from 12 ^ ^ and 1 winged ? from Singapore, given to 

 me by my friend Mr. E. E. Green. They were associated with species 

 of Lecanium (Coccids) in hollow stems of Macaramja. 



I have named this species in honour of my friend and colleague, 

 Mr. W. C. Crawley. 



D. (H.) crawleyi comes in section 15 of Mayr's table of Hypoclinea 

 [Zool. Bot. Ges. Wien, 20, 965 (ISTO)] which contains two species 

 from Borneo — patens Mayr and se)nirufjosa Mayr ; both species are 

 larger, the former is of a reddish-yellow colour and is smoother, etc.; 

 the latter is of a deeper black, duller, and the head and thorax are 

 much more rugose and wrinkled. In some respects it approaches 

 sulcaticeps Mayr, but that species is also larger, and has the gaster 

 broadly yellow anteriorly ; moreover the clypeus is much less wrinkled, 

 and the frontal area is not clearly defined, etc. 



Dolichoderus Lund (tribe Dolichoderini Emery, subfamily Dolicho- 

 derinae Forel), is a large genus consisting of some 63 species, and is 

 distributed over all the tropical and temperate regions of the world, 

 except Africa, Madagascar, New Zealand, Polynesia and Chili. The 

 type of the genus is Dolichoderus attelaboides Lund. 



The chief characters are as follows : — 



y Not very variable in size. Mandibles triangular, toothed. Maxillary 

 palpi 6-jointed ; labial-palpi 4-jointed; antennce 12-jointed ; no ocelli. Thorax 

 deeply impressed between mesonotum and epinotum. Pedicel with a scale, which 

 is sometimes spined; gaster not overhanging pedicel ; anus not visible from above. 

 Gizzard without calyx, or cylindrical portion, and with a not very definite bulb. 



? Anterior icings with two closed cubital cells, and one discoidal cell. Not 

 much larger than, and resembling 2 in general. 



,? Antennce 13-jointed, scape a little longer than the second joint of the funi- 

 culus, first joint of the funiculus very small. Genitalia : stipites massive, volsellae 

 variable. Wings as in ? . 

 OcTOBED 15th, 1917. 



